Lusitania arriving in port
|Port of registry:||Liverpool|
Ship Disaster :1915 English channel torpedoed by German U boat off the coast of Ireland
|Builder:||John Brown & Co, Clydebank, Scotland|
|Laid down:||17 August 1904|
|Launched:||7 June 1906|
|Christened:||Mary, Lady Inverclyde|
|Acquired:||26 August 1907|
|Maiden voyage:||7 September 1907|
|Fate:||Torpedoed by German U-boat U-20 on Friday 7 May 1915. Wreck lies approximately 11 mi (18 km) off the Old Head of Kinsale Lighthouse in 300 ft (91 m) of water at Coordinates:|
|Status:||Partially collapsed wreck|
|Displacement:||44,060 long tons (44,767.0 t)|
|Length:||787 ft (239.9 m)[a]|
|Beam:||87 ft (26.5 m)|
|Height:||60 ft (18.3 m) to boat deck, 165 ft (50.3 m) to aerials|
|Draught:||33.6 ft (10.2 m)|
|Decks:||9 passenger decks|
|Installed power:||25 Scotch boilers. Four direct-acting Parsons steam turbines producing 76,000 hp (57 MW).|
|Propulsion:||Four triple blade propellers. (Quadruple blade propellers installed in 1909).|
|Speed:||25 knots (46 km/h; 29 mph) 28 knots (52 km/h; 32 mph) (top speed, single day's run in March 1914)|
|Capacity:||552 first class, 460 second class, 1,186 third class. 2,198 total. 7,000 tons coal.|
|Notes:||First ship of Cunard's four funneled grand trio, along with RMS Mauretania and RMS Aquitania|
RMS Lusitania was a British ocean liner that a German submarine sank in World War I, causing a major diplomatic uproar. The ship was a holder of the Blue Riband, and briefly the world's largest passenger ship until the completion of her sister ship Mauretania. The Cunard Line launched Lusitania in 1906, at a time of fierce competition for the North Atlantic trade. She made a total of 202 trans-Atlantic crossings.
German shipping lines were aggressive competitors in the transatlantic trade, and Cunard responded by trying to outdo them in speed, capacity, and luxury. Both Lusitania and Mauretania were fitted with revolutionary new turbine engines that enabled them to maintain a service speed of 25 knots (46 km/h; 29 mph). They were equipped with lifts, wireless telegraph, and electric light, and provided 50% more passenger space than any other ship; the first class decks were noted for their sumptuous furnishings.
The Royal Navy had blockaded Germany at the start of World War I. When RMS Lusitania left New York for Britain on 1 May 1915, German submarine warfare was intensifying in the Atlantic. Germany had declared the seas around the United Kingdom a war zone, and the German embassy in the United States had placed a newspaper advertisement warning people of the dangers of sailing on Lusitania. On the afternoon of 7 May, a German U-boat torpedoed Lusitania, 11 mi (18 km) off the southern coast of Ireland and inside the declared war zone. A second, unexplained, internal explosion sent her to the seabed in 18 minutes, with the deaths of 1,198 passengers and crew.
Because the Germans sank, without warning, what was officially a non-military ship, many accused them of breaching the internationally recognized Cruiser Rules. It was no longer possible for submarines to give warning due to the British introduction of Q-ships in 1915 with concealed deck guns. (Lusitania had been fitted with 6-inch gun mounts in 1913, although she was unarmed at the time of her sinking.) The Germans justified treating Lusitania as a naval vessel because she was carrying hundreds of tons of war munitions, therefore making her a legitimate military target, and argued that British merchant ships had violated the Cruiser Rules from the very beginning of the war.
The sinking caused a storm of protest in the United States because 128 American citizens were among the dead. The sinking helped shift public opinion in the United States against Germany, and was a factor in the United States' declaration of war nearly two years later. After World War I, successive British governments maintained there were no munitions on board Lusitania and the Germans were not justified in treating the ship as a naval vessel. In 1982, the head of the British Foreign Office's North America department admitted that there is a large amount of ammunition in the wreck, some of which is highly dangerous and poses a safety risk to salvage teams.
- 1 Development and construction
- 2 Career
- 3 Outbreak of the First World War
- 4 1915
- 5 Sinking
- 6 Aftermath
- 7 Commemoration
- 8 Conspiracy theories
- 9 Wreck
- 10 Cultural significance
- 11 See also
- 12 References
- 13 Bibliography
- 14 Further reading
- 15 External links
Development and construction
Lusitania and Mauretania were commissioned by Cunard, responding to increasing competition from rival transatlantic passenger companies, particularly the German Norddeutscher Lloyd (NDL) and Hamburg America Line (HAPAG). They had larger, faster, more modern, more luxurious ships than Cunard and were better placed, starting from German ports, to capture the lucrative trade in emigrants leaving Europe for North America. In 1897 the NDL liner Kaiser Wilhelm der Grosse captured the Blue Riband from Cunard's Campania, before the prize was taken in 1900 by the HAPAG ship Deutschland. NDL soon wrested the prize back in 1903 with the new Kaiser Wilhelm II and Kronprinz Wilhelm. Cunard saw their passenger numbers affected as a result of the so-called "Kaiser-class ocean liners".
American millionaire businessman J. P. Morgan had decided to invest in transatlantic shipping by creating a new company, International Mercantile Marine (IMM), and, in 1901, purchased the British freight shipper Frederick Leyland & Co. and a controlling interest in the British passenger White Star Line and folded them into IMM. In 1902, IMM, NDL, and HAPAG entered into a "Community of Interest" to fix prices and divide among them the transatlantic trade. The partners also acquired a 51% stake in the Dutch Holland America Line. IMM made offers to purchase Cunard which, along with the French CGT, were now their principal rivals.
Cunard chairman Lord Inverclyde thus approached the British government for assistance. Faced with the impending collapse of the British liner fleet and the consequent loss of national prestige, as well as the reserve of shipping for war purposes which it represented, they agreed to help. By an agreement signed in June 1903, Cunard was given a loan of £2.6 million to finance two ships, repayable over 20 years at a favourable interest rate of 2.75%. The ships would receive an annual operating subsidy of £75,000 each plus a mail contract worth £68,000. In return the ships would be built to Admiralty specifications so that they could be used as auxiliary cruisers in wartime.
Cunard established a committee to decide upon the design for the new ships, of which James Bain, Cunard's Marine Superintendent was the chairman. Other members included Rear Admiral H. J. Oram, who had been involved in designs for turbine powered ships for the navy, and Charles Parsons, whose company Parsons Marine was now producing revolutionary turbine engines.
Parsons maintained that he could design engines capable of maintaining a speed of 25 knots (46 km/h; 29 mph), which would require 68,000 shaft horsepower (51,000 kW). The largest turbine sets built thus far had been of 23,000 shp (17,000 kW) for the Dreadnought-class battleships, and 41,000 shp (31,000 kW) for Invincible-class battlecruisers, which meant the engines would be of a new, untested design. Turbines offered the advantages of generating less vibration than the reciprocating engines and greater reliability in operation at high speeds, combined with lower fuel consumption. It was agreed that a trial would be made by fitting turbines to Carmania, which was already under construction. The result was a ship 1.5 knots (2.8 km/h; 1.7 mph) faster than her conventionally powered sister Caronia with the expected improvements in passenger comfort and operating economy.
The ship was designed by Leonard Peskett and built by John Brown and Company of Clydebank, Scotland. The ship's name was taken from Lusitania, an ancient Roman province on the west of Iberian Peninsula, the region that is now southern Portugal and Extremadura (Spain). The name had also been used by a previous ship built in 1871 and wrecked in 1901, making the name available from Lloyds for Cunard's giant.
Peskett had built a large model of the proposed ship in 1902 showing a three funnel design. A fourth funnel was implemented into the design in 1904 as it was necessary to vent the exhaust from additional boilers fitted after steam turbines had been settled on as the power plant. The original plan called for three propellers, but this was altered to four because it was felt the necessary power could not be transmitted through just three. Four turbines would drive four separate propellers, with additional reversing turbines to drive the two inboard shafts only. To improve efficiency, the two inboard propellers rotated inwards, while those outboard rotated outwards. The outboard turbines operated at high pressure; the exhaust steam then passing to those inboard at relatively low pressure.
The propellers were driven directly by the turbines, since sufficiently robust gearboxes had not yet been developed, and only became available in 1916. Instead, the turbines had to be designed to run at a much lower speed than those normally accepted as being optimum. Thus, the efficiency of the turbines installed was less at low speeds than a conventional reciprocating (piston in cylinder) steam engine, but significantly better when the engines were run at high speed, as was usually the case for an express liner. The ship was fitted with 23 double-ended, and two single-ended boilers (which fitted the forward space where the ship narrowed), operating at a maximum 195 psi and containing 192 individual furnaces.
Work to refine the hull shape was conducted in the Admiralty experimental tank at Haslar, Gosport. As a result of experiments, the beam of the ship was increased by 10 feet (3.0 m) over that initially intended to improve stability. The hull immediately in front of the rudder and the balanced rudder itself followed naval design practice to improve the vessel's turning response. The Admiralty contract required that all machinery be below the waterline, where it was considered to be better protected from gunfire, and the aft third of the ship below water was used to house the turbines, the steering motors and four 375-kilowatt (503 hp) steam driven turbo-generators. The central half contained four boiler rooms, with the remaining space at the forward end of the ship being reserved for cargo and other storage.
Coal bunkers were placed along the length of the ship outboard of the boiler rooms, with a large transverse bunker immediately in front of that most forward (number 1) boiler room. Apart from convenience ready for use, the coal was considered to provide added protection for the central spaces against attack. At the very front were the chain lockers for the huge anchor chains and ballast tanks to adjust the ship's trim.
The hull space was divided into twelve watertight compartments, any two of which could be flooded without risk of the ship sinking, connected by 35 hydraulically operated watertight doors. A critical flaw in the arrangement of the watertight compartments was that sliding doors to the coal bunkers needed to be open to provide a constant feed of coal whilst the ship was operating, and closing these in emergency conditions could be problematic. The ship had a double bottom with the space between divided into separate watertight cells. The ship's exceptional height was due to the six decks of passenger accommodation above the waterline, compared to the customary four decks in existing liners.
High tensile steel was used for the ship's plating, as opposed to the more conventional mild steel. This allowed a reduction in plate thickness, reducing weight but still providing 26 per cent greater strength than otherwise. Plates were held together by triple rows of rivets. The ship was heated and cooled throughout by a thermo-tank ventilation system, which used steam driven heat exchangers to warm air to a constant 65 °F (18.3 °C), while steam was injected into the airflow to maintain steady humidity.
Forty-nine separate units driven by electric fans provided seven complete changes of air per hour throughout the ship, through an interconnected system, so that individual units could be switched off for maintenance. A separate system of exhaust fans removed air from galleys and bathrooms. As built, the ship conformed fully with Board of Trade safety regulations which required sixteen lifeboats with a capacity of approximately 1,000 people.
At the time of her completion Lusitania was briefly the largest ship ever built, but was eclipsed in this respect by the slightly larger Mauretania which entered service shortly thereafter. She was 70 feet (21 m) longer, a full 2 knots (3.7 km/h; 2.3 mph) faster, and had a capacity of 10,000 gross tons over and above that of the most modern German liner, Kronprinzessin Cecilie. Passenger accommodation was 50% larger than any of her competitors, providing for 552 saloon class, 460 cabin class and 1,186 in third class. Her crew comprised 69 on deck, 369 operating engines and boilers and 389 to attend to passengers. Both she and Mauretania had a wireless telegraph, electric lighting, electric lifts, sumptuous interiors and an early form of air-conditioning.
At the time of their introduction onto the North Atlantic, both Lusitania and Mauretania possessed among the most luxurious, spacious and comfortable interiors afloat. The Scottish architect James Miller was chosen to design Lusitania's interiors, while Harold Peto was chosen to design Mauretania. Miller chose to use plasterwork to create interiors whereas Peto made extensive use of wooden panelling, with the result that the overall impression given by Lusitania was brighter than Mauretania. Lusitania's designs proved the more popular.
The ship's passenger accommodation was spread across six decks; from the top deck down to the waterline they were Boat Deck (A Deck), the Promenade Deck (B Deck), the Shelter Deck (C Deck), the Upper Deck (D Deck), the Main Deck (E Deck) and the Lower Deck (F Deck), with each of the three passenger classes being allotted their own space on the ship. As seen aboard all passenger liners of the era, first, second and third class passengers were strictly segregated from one another. According to her original configuration in 1907, she was designed to carry 2,198 passengers and 827 crew members. The Cunard Line prided itself with a record for passenger satisfaction.
Lusitania's first class accommodation was in the centre section of the ship on the five uppermost decks, mostly concentrated between the first and fourth funnels. When fully booked, Lusitania could cater to 552 first class passengers. In common with all major liners of the period, Lusitania's first class interiors were decorated with a mélange of historical styles. The first class dining saloon was the grandest of the ship's public rooms; arranged over two decks with an open circular well at its centre and crowned by an elaborate dome measuring 29 feet (8.8 m), decorated with frescos in the style of François Boucher, it was elegantly realised throughout in the neoclassical Louis XVI style. The lower floor measuring 85 feet (26 m) could seat 323, with a further 147 on the 65-foot (20 m) upper floor. The walls were finished with white and gilt carved mahogany panels, with Corinthian decorated columns which were required to support the floor above. The one concession to seaborne life was that furniture was bolted to the floor, meaning passengers could not rearrange their seating for their personal convenience.
All other first class public rooms were situated on the boat deck and comprised a lounge, reading and writing room, smoking room and veranda café. The last was an innovation on a Cunard liner and, in warm weather, one side of the café could be opened up to give the impression of sitting outdoors. This would have been a rarely used feature given the often inclement weather of the North Atlantic.
The first class lounge was decorated in Georgian style with inlaid mahogany panels surrounding a jade green carpet with a yellow floral pattern, measuring overall 68 feet (21 m). It had a barrel vaulted skylight rising to 20 feet (6.1 m) with stained glass windows each representing one month of the year.
Each end of the lounge had a 14-foot (4.3 m) high green marble fireplace incorporating enamelled panels by Alexander Fisher. The design was linked overall with decorative plasterwork. The library walls were decorated with carved pilasters and mouldings marking out panels of grey and cream silk brocade. The carpet was rose, with Rose du Barry silk curtains and upholstery. The chairs and writing desks were mahogany, and the windows featured etched glass. The smoking room was Queen Anne style, with Italian walnut panelling and Italian red furnishings. The grand stairway linked all six decks of the passenger accommodation with wide hallways on each level and two lifts. First class cabins ranged from one shared room through various ensuite arrangements in a choice of decorative styles culminating in the two regal suites which each had two bedrooms, dining room, parlour and bathroom. The port suite decoration was modelled on the Petit Trianon.
Lusitania's second class accommodation was confined to the stern, behind the aft mast, where quarters for 460 second class passengers were located. The second class public rooms were situated on partitioned sections of boat and promenade decks housed in a separate section of the superstructure aft of the first class passenger quarters. Design work was deputised to Robert Whyte, who was the architect employed by John Brown. Although smaller and plainer, the design of the dining room reflected that of first class, with just one floor of diners under a ceiling with a smaller dome and balcony. Walls were panelled and carved with decorated pillars, all in white. As seen in first class, the dining room was situated lower down in the ship on the saloon deck. The smoking and ladies' rooms occupied the accommodation space of the second class promenade deck, with the lounge on the boat deck.
Cunard had not previously provided a separate lounge for second class; the 42-foot (13 m) room had mahogany tables, chairs and settees set on a rose carpet. The smoking room was 52 feet (16 m) with mahogany panelling, white plasterwork ceiling and dome. One wall had a mosaic of a river scene in Brittany, while the sliding windows were blue tinted. Second class passengers were allotted shared, yet comfortable two and four berth cabins arranged on the shelter, upper and main decks.
Noted as being the prime breadwinner for trans-Atlantic shipping lines, third class aboard Lusitania was praised for the improvement in travel conditions it provided to emigrant passengers, and Lusitania proved to be a quite popular ship for immigrants. In the days before Lusitania and even still during the years in which Lusitania was in service, third class accommodation consisted of large open spaces where hundreds of people would share open berths and hastily constructed public spaces, often consisting of no more than a small portion of open deck space and a few tables constructed within their sleeping quarters. In an attempt to break that mould, the Cunard Line began designing ships such as Lusitania with more comfortable third class accommodation.
As on all Cunard passenger liners, third class accommodation aboard Lusitania was located at the forward end of the ship on the shelter, upper, main and lower decks, and in comparison to other ships of the period, it was comfortable and spacious. The 79-foot (24 m) dining room was at the bow of the ship on the saloon deck, finished in polished pine as were the other two third class public rooms, being the smoke room and ladies room on the shelter deck.
When Lusitania was fully booked in Third Class, the smoking and ladies room could easily be converted into overflow dining rooms for added convenience. Meals were eaten at long tables with swivel chairs and there were two sittings for meals. A piano was provided for passenger use. What greatly appealed to immigrants and lower class travelers was that instead of being confined to open berth dormitories, aboard Lusitania was a honeycomb of two, four, six and eight berth cabins allotted to Third Class passengers on the main and lower decks.
The Bromsgrove Guild had designed and constructed most of the trim on Lusitania. Waring and Gillow tendered for the contract to furnish the whole ship, but failing to obtain this still supplied a number of the furnishings.
Construction and trials
Lusitania's keel was laid at John Brown on Clydebank as yard no. 367 on 16 June 1904, Lord Inverclyde hammering home the first rivet. Cunard nicknamed her 'the Scottish ship' in contrast to Mauretania whose contract went to Swan Hunter in England and who started building three months later. Final details of the two ships were left to designers at the two yards so that the ships differed in details of hull design and finished structure. The ships may most readily be distinguished in photographs through the flat topped ventilators used on Lusitania, whereas those on Mauretania used a more conventional rounded top. Mauretania was designed a little longer, wider, heavier and with an extra power stage fitted to the turbines.
The shipyard at John Brown had to be reorganised because of her size so that she could be launched diagonally across the widest available part of the river Clyde where it met a tributary, the ordinary width of the river being only 610 feet (190 m) compared to the 786-foot (240 m) long ship. The new slipway took up the space of two existing ones and was built on reinforcing piles driven deeply into the ground to ensure it could take the temporary concentrated weight of the whole ship as it slid into the water. In addition the company spent £8,000 to dredge the Clyde, £6,500 on new gas plant, £6,500 on a new electrical plant, £18,000 to extend the dock and £19,000 for a new crane capable of lifting 150 tons as well as £20,000 on additional machinery and equipment. Construction commenced at the bow working backwards, rather than the traditional approach of building both ends towards the middle. This was because designs for the stern and engine layout were not finalised when construction commenced. Railway tracks were laid alongside the ship and across deck plating to bring materials as required. The hull, completed to the level of the main deck but not fitted with equipment weighed approximately 16,000 tons.
The ship's stockless bower anchors weighed 10 1⁄4 tons, attached to 125 ton, 330 fathom chains all manufactured by N. Hingley & Sons Ltd. The steam capstans to raise them were constructed by Napier Brothers Ltd, of Glasgow. The turbines were 25 feet (7.6 m) long with 12 ft (3.7 m) diameter rotors, the large diameter necessary because of the relatively low speeds at which they operated. The rotors were constructed on site, while the casings and shafting was constructed in John Brown's Atlas works in Sheffield. The machinery to drive the 56 ton rudder was constructed by Brown Brothers of Edinburgh. A main steering engine drove the rudder through worm gear and clutch operating on a toothed quadrant rack, with a reserve engine operating separately on the rack via a chain drive for emergency use. The 17 ft (5.2 m) three bladed propellers were fitted and then cased in wood to protect them during the launch.
The ship was launched on 7 June 1906, eight weeks later than planned due to labour strikes and eight months after Lord Inverclyde's death. Princess Louise was invited to name the ship but could not attend, so the honour fell to Inverclyde's widow Mary. The launch was attended by 600 invited guests and thousands of spectators. One thousand tons of drag chains were attached to the hull by temporary rings to slow it once it entered the water. On launch the propellers were fitted, but on later launches propellers would be fitted in dry dock as they could be damaged by colliding with another object on launch. The wooden supporting structure was held back by cables so that once the ship entered the water it would slip forward out of its support. Six tugs were on hand to capture the hull and move it to the fitting out berth.
Testing of the ship's engines took place in June 1907 prior to full trials scheduled for July. A preliminary cruise, or Builder's Trial, was arranged for 27 July with representatives of Cunard, the Admiralty, the Board of Trade, and John Brown aboard. The ship achieved speeds of 25.6 knots (47.4 km/h; 29.5 mph) over a measured 1 mile (1.6 km) at Skelmorlie with turbines running at 194 revolutions per minute producing 76,000 shp. At high speeds the ship was found to suffer such vibration at the stern as to render the second class accommodation uninhabitable. VIP invited guests now came on board for a two-day shakedown cruise during which the ship was tested under continuous running at speeds of 15, 18 and 21 knots but not her maximum speed. On 29 July the guests departed and three days of full trials commenced. The ship travelled four times between the Corsewall Light off Scotland to the Longship Light off Cornwall at 23 and 25 knots, between the Corsewall Light and the Isle of Man, and the Isle of Arran and Ailsa Craig. Over 300 miles (480 km) an average speed of 25.4 knots was achieved, comfortably greater than the 24 knots required under the admiralty contract. The ship could stop in 4 minutes in 3/4 of a mile starting from 23 knots at 166 rpm and then applying full reverse. She achieved a speed of 26 knots over a measured mile loaded to a draught of 33 feet (10 m), and managed 26.5 knots over a 60-mile (97 km) course drawing 31.5 feet (9.6 m). At 180 revolutions a turning test was conducted and the ship performed a complete circle of diameter 1000 yards in 50 seconds. The rudder required 20 seconds to be turned hard to 35 degrees.
The vibration was determined to be caused by interference between the wake of the outer propellers and inner and became worse when turning. At high speeds the vibration frequency resonated with the ship's stern making the matter worse. The solution was to add internal stiffening to the stern of the ship but this necessitated gutting the second class areas and then rebuilding them. This required the addition of a number of pillars and arches to the decorative scheme. The ship was finally delivered to Cunard on 26 August although the problem of vibration was never entirely solved and further remedial work went on through her life.
Comparison with the Olympic class
The White Star Line's Olympic-class vessels were almost 100 ft (30 m) longer and slightly wider than Lusitania and Mauretania. This made the White Star vessels about 15,000 tons heavier than the Cunard vessels. Both Lusitania and Mauretania were launched and had been in service for several years before Olympic, Titanic and Britannic were ready for the North Atlantic run. Although significantly faster than the Olympic class would be, the speed of Cunard's vessels was not sufficient to allow the line to run a weekly two-ship transatlantic service from each side of the Atlantic. A third ship was needed for a weekly service, and in response to White Star's announced plan to build the three Olympic-class ships, Cunard ordered a third ship: Aquitania. Like Olympic, Cunard's Aquitania had a lower service speed, but was a larger and more luxurious vessel.
Because of their increased size the Olympic-class liners could offer many more amenities than Lusitania and Mauretania. Both Olympic and Titanic offered swimming pools, Turkish baths, a gymnasium, a squash court, large reception rooms, À la Carte restaurants separate from the dining saloons, and many more staterooms with private bathroom facilities than their two Cunard rivals.
Heavy vibrations as a by-product of the four steam turbines on Lusitania and Mauretania would plague both ships throughout their careers. When Lusitania sailed at top speed the resultant vibrations were so severe that Second and Third Class sections of the ship could become uninhabitable. In contrast, the Olympic-class liners utilized four traditional reciprocating engines and only one turbine for the central propeller, which greatly reduced vibration. Because of their greater tonnage and wider beam, the Olympic-class liners were also more stable at sea and less prone to rolling. Lusitania and Mauretania both featured straight prows in contrast to the angled prows of the Olympic liners. Designed so that the ships could plunge through a wave rather than crest it, the unforeseen consequence was that the Cunard liners would pitch forward alarmingly, even in calm weather, allowing huge waves to splash the bow and forward part of the superstructure.
The vessels of the Olympic class also differed from Lusitania and Mauretania in the way in which they were compartmented below the waterline. The White Star vessels were divided by transverse watertight bulkheads. While Lusitania also had transverse bulkheads, it also had longitudinal bulkheads running along the ship on each side, between the boiler and engine rooms and the coal bunkers on the outside of the vessel. The British commission that had investigated the sinking of Titanic in 1912 heard testimony on the flooding of coal bunkers lying outside longitudinal bulkheads. Being of considerable length, when flooded, these could increase the ship's list and "make the lowering of the boats on the other side impracticable" — and this was precisely what later happened with Lusitania. The ship's stability was insufficient for the bulkhead arrangement used: flooding of only three coal bunkers on one side could result in negative metacentric height. On the other hand, Titanic was given ample stability and sank with only a few degrees list, the design being such that there was very little risk of unequal flooding and possible capsize.
Lusitania did not carry enough lifeboats for all her passengers, officers and crew on board at the time of her maiden voyage (carrying four lifeboats fewer than Titanic would carry in 1912). This was a common practice for large passenger ships at the time, since the belief was that in busy shipping lanes help would always be nearby and the few boats available would be adequate to ferry all aboard to rescue ships before a sinking. After the Titanic sank, Lusitania and Mauretania were equipped with an additional six clinker-built wooden boats under davits, making for a total of 22 boats rigged in davits. The rest of their lifeboat accommodations were supplemented with 26 collapsible lifeboats, 18 stored directly beneath the regular lifeboats and eight on the after deck. The collapsibles were built with hollow wooden bottoms and canvas sides, and needed assembly in the event they had to be used.
This contrasted with Olympic and Britannic which received a full complement of lifeboats all rigged under davits. This difference would have been a major contributor to the high loss of life involved with Lusitania's sinking, since there was not sufficient time to assemble collapsible boats or life-rafts, had it not been for the fact that the ship's severe listing made it impossible for lifeboats on the port side of the vessel to be lowered, and the rapidity of the sinking did not allow the remaining lifeboats that could be directly lowered (as these were rigged under davits) to be filled and launched with passengers. When Britannic, working as a hospital ship during World War I, sank in 1916 after hitting a mine in the Kea channel the already davited boats were swiftly lowered saving nearly all on board, but the ship took nearly three times as long to sink as Lusitania and thus the crew had more time to evacuate passengers.
Lusitania, commanded by Commodore James Watt, moored at the Liverpool landing stage for her maiden voyage at 4:30 p.m. on Saturday 7 September 1907 as the onetime Blue Riband holder RMS Lucania vacated the pier. At the time Lusitania was the largest ocean liner in service and would continue to be until the introduction of Mauretania in November that year. During her eight-year service, she made a total of 202 crossings on the Cunard Line's Liverpool-New York Route. A crowd of 200,000 people gathered to see her departure at 9:00 p.m. for Queenstown (Renamed Cobh), where she was to take on more passengers. She anchored again at Roche's Point, off Queenstown, at 9:20 a.m. the following morning, where she was shortly joined by Lucania, which she had passed in the night, and 120 passengers were brought out to the ship by tender bringing her total of passengers to 2,320.
At 12:10 p.m. on Sunday Lusitania was again under way and passing the Daunt Rock Lightship. In the first 24 hours she achieved 561 miles (903 km), with further daily totals of 575, 570, 593 and 493 miles (793 km) before arriving at Sandy Hook at 9:05 a.m. Friday 13 September, taking in total 5 days and 54 minutes, 30 minutes outside the record time held by Kaiser Wilhelm II of the North German Lloyd line. Fog had delayed the ship on two days, and her engines were not yet run in. In New York hundreds of thousands of people gathered on the bank of the Hudson River from Battery Park to pier 56. All New York's police had been called out to control the crowd. From the start of the day, 100 horse drawn cabs had been queuing, ready to take away passengers. During the week's stay the ship was made available for guided tours. At 3 p.m. on Saturday 21 September, the ship departed on the return journey, arriving Queenstown 4 a.m. 27 September and Liverpool 12 hours later. The return journey was 5 days 4 hours and 19 minutes, again delayed by fog.
On her second voyage in better weather, Lusitania arrived at Sandy Hook on 11 October 1907 in the Blue Riband record time of 4 days, 19 hours and 53 minutes. She had to wait for the tide to enter harbour where news had preceded her and she was met by a fleet of small craft, whistles blaring. Lusitania averaged 23.99 knots (44.43 km/h) westbound and 23.61 knots (43.73 km/h) eastbound. In December 1907, Mauretania entered service and took the record for the fastest eastbound crossing. Lusitania made her fastest westbound crossing in 1909 after her propellers were changed, averaging 25.85 knots (47.87 km/h). She briefly recovered the record in July of that year, but Mauretania recaptured the Blue Riband the same month, retaining it until 1929, when it was taken by SS Bremen.
Hudson Fulton Celebration
Lusitania and other ships participated in the Hudson-Fulton Celebration in New York City from the end of September to early October 1909. The celebration also was a display of the different modes of transportation then in existence, Lusitania representing the newest advancement in steamship technology. A newer mode of travel was the aeroplane. Wilbur Wright had brought a Flyer to Governors Island and proceeded to make demonstration flights before millions of New Yorkers who had never seen an aircraft. Some of Wright's trips were directly over Lusitania; several photographs of Lusitania from that week still exist.
Outbreak of the First World War
When Lusitania was built, her construction and operating expenses were subsidised by the British government, with the proviso that she could be converted to an armed merchant cruiser (AMC) if need be. A secret compartment was designed in for the purpose of carrying arms and ammunition. When war was declared she was requisitioned by the British Admiralty as an armed merchant cruiser, and she was put on the official list of AMCs. Lusitania remained on the official AMC list and was listed as an auxiliary cruiser in the 1914 edition of Jane's All the World's Fighting Ships, along with Mauretania.
The Declaration of Paris codified the rules for naval engagements involving civilian vessels. The so-called Cruiser Rules required that the crew and passengers of civilian ships be safeguarded in the event that the ship is to be confiscated or sunk. These rules also placed some onus on the ship itself, in that the merchant ship had to be flying its own flag, and not pretending to be of a different nationality. Also, it had to stop when confronted and allow itself to be boarded and searched, and it was not allowed to be armed or to take any hostile or evasive actions. When war was declared, British merchant ships were given orders to ram submarines that surfaced to issue the warnings required by the Cruiser Rules.
At the outbreak of hostilities, fears for the safety of Lusitania and other great liners ran high. During the ship's first east-bound crossing after the war started, she was painted in a grey colour scheme in an attempt to mask her identity and make her more difficult to detect visually.
Many of the large liners were laid up in 1914–1915, in part due to falling demand for passenger travel across the Atlantic, and in part to protect them from damage due to mines or other dangers. Among the most recognisable of these liners, some were eventually used as troop transports, while others became hospital ships. Lusitania remained in commercial service; although bookings aboard her were by no means strong during that autumn and winter, demand was strong enough to keep her in civilian service. Economising measures were taken. One of these was the shutting down of her No. 4 boiler room to conserve coal and crew costs; this reduced her maximum speed from over 25 knots (46 km/h; 29 mph) to 21 knots (39 km/h; 24 mph). With apparent dangers evaporating, the ship's disguised paint scheme was also dropped and she was returned to civilian colours. Her name was picked out in gilt, her funnels were repainted in their traditional Cunard livery, and her superstructure was painted white again. One alteration was the addition of a bronze/gold coloured band around the base of the superstructure just above the black paint.
By early 1915 a new threat began to materialise: submarines. At first they were used by the Germans only to attack naval vessels, something they achieved only occasionally but sometimes with spectacular success. Then the U-boats began to attack merchant vessels at times, although almost always in accordance with the old Cruiser Rules. Desperate to gain an advantage on the Atlantic, the German government decided to step up their submarine campaign, as a result of the British declaring the North Sea a war zone in November 1914. On 4 February 1915, Germany declared the seas around the British Isles a war zone: from 18 February Allied ships in the area would be sunk without warning. This was not wholly unrestricted submarine warfare as efforts would be taken to avoid sinking neutral ships.[b]
Lusitania was scheduled to arrive in Liverpool on 6 March 1915. The Admiralty issued her specific instructions on how to avoid submarines. Admiral Henry Oliver ordered HMS Louis and HMS Laverock to escort Lusitania, and took the further precaution of sending the Q-ship HMS Lyons to patrol Liverpool Bay.[c] The destroyer commander attempted to discover the whereabouts of Lusitania by telephoning Cunard, who refused to give out any information and referred him to the Admiralty. At sea, the ships contacted Lusitania by radio but did not have the codes used to communicate with merchant ships. Captain Dow of Lusitania refused to give his own position except in code, and since he was, in any case, some distance from the positions they gave, continued to Liverpool unescorted.
In response to this new submarine threat, some alterations were made to the ship's protocols. She was ordered not to fly any flags in the war zone, which was a contravention of the Cruiser Rules. Some messages were sent to the ship's commander to help him decide how to best protect his ship against the new threat, and it also seems that her funnels were most likely painted dark grey to help make her less visible to enemy submarines. Clearly, there was no hope of disguising her identity, as her profile was so well known, and no attempt was made to paint out the ship's name at the prow.[d]
Captain Dow, apparently suffering from stress from operating his ship in the war zone, and after a significant "false flag" controversy, left the ship; Cunard later explained that he was "tired and really ill".[e] He was replaced by Captain William Thomas Turner, who had previously commanded Lusitania, Mauretania, and Aquitania in the years before the war.
On 17 April 1915, Lusitania left Liverpool on her 201st transatlantic voyage, arriving in New York on 24 April. A group of German-Americans, hoping to avoid controversy if Lusitania was attacked by a U-boat, discussed their concerns with a representative of the German Embassy. The embassy decided to warn passengers before her next crossing not to sail aboard Lusitania. The Imperial German Embassy placed a warning advertisement in 50 American newspapers, including those in New York:
Travellers intending to embark on the Atlantic voyage are reminded that a state of war exists between Germany and her allies and Great Britain and her allies; that the zone of war includes the waters adjacent to the British Isles; that, in accordance with formal notice given by the Imperial German Government, vessels flying the flag of Great Britain, or any of her allies, are liable to destruction in those waters and that travellers sailing in the war zone on the ships of Great Britain or her allies do so at their own risk.
Imperial German Embassy
Washington, D.C., 22 April 1915.
This warning was printed adjacent to an advertisement for Lusitania's return voyage. The warning led to agitation in the press and worried some of the ship's passengers and crew. Lusitania departed Pier 54 in New York, on 1 May 1915 at 12:20 p.m. A few hours after the vessel's departure, the Saturday evening edition of The Washington Times published two articles on its front page, both referring to those warnings.
On 7 May 1915 Lusitania was nearing the end of her 202nd crossing, bound for Liverpool from New York, and was scheduled to dock at the Prince's Landing Stage later that afternoon. Aboard her were 1,266 passengers and a crew of 696, which combined totaled to 1,962 people. She was running parallel to the south coast of Ireland, and was roughly 11 miles off the Old Head of Kinsale when the liner crossed in front of U-20 at 14:10. Due to the liner's great speed, some believe the intersection of the German U-boat and the liner to be coincidence, as U-20 could hardly have caught the fast vessel otherwise. There are discrepancies concerning the speed of Lusitania, as it had been reported travelling not near its full speed. Walther Schwieger, the commanding officer of the U-boat, gave the order to fire one torpedo, which struck Lusitania on the starboard bow, just beneath the wheelhouse. Moments later, a second explosion erupted from within Lusitania's hull where the torpedo had struck, and the ship began to founder much more rapidly, with a prominent list to starboard.[f]
Almost immediately, the crew scrambled to launch the lifeboats but the conditions of the sinking made their usage extremely difficult, and in some cases impossible due to the ship's severe list. In all, only six out of 48 lifeboats were launched successfully, with several more overturning and breaking apart. Eighteen minutes after the torpedo struck, the bow struck the seabed while the stern was still above the surface, and finally the ship slid beneath the waves. Of the 1,962 passengers and crew aboard Lusitania at the time of the sinking, 1,198 lost their lives. As in the sinking of Titanic, most of the casualties were from drowning or hypothermia. In the hours after the sinking, acts of heroism amongst both the survivors of the sinking and the Irish rescuers who had heard word of Lusitania's distress signals brought the survivor count to 764, three of whom later died from injuries sustained during the sinking.
A British cruiser HMS Juno, which had heard of the sinking only a short time after Lusitania was struck, left her anchorage in Cork Harbour to render assistance. Just south of Roche's Point at the mouth of the harbour only an hour from the site of the sinking she turned and returned to her mooring as a result, it is believed, on orders issued from admiralty house, Cobh (HQ Haulbowline naval base). By the following morning, news of the disaster had spread around the world. While most of those lost in the sinking were British or Canadians, the loss of 128 Americans in the disaster, including writer and publisher Elbert Hubbard, theatrical producer Charles Frohman, multi-millionaire businessman Alfred Vanderbilt, and the president of Newport News Shipbuilding, Albert L. Hopkins, outraged many in the United States.
The sinking caused an international outcry, especially in Britain and across the British Empire, as well as in the United States, since 128 out of 139 U.S. citizens aboard the ship lost their lives. On 8 May, Dr Bernhard Dernburg, a German spokesman and a former German Colonial Secretary, published a statement in which he said that because Lusitania "carried contraband of war" and also because she "was classed as an auxiliary cruiser," Germany had a right to destroy her regardless of any passengers aboard. Dernburg claimed warnings given by the German Embassy before the sailing plus the 18 February note declaring the existence of "war zones" relieved Germany of any responsibility for the deaths of American citizens aboard. He referred to the ammunition and military goods declared on Lusitania's manifest and said that "vessels of that kind" could be seized and destroyed under the Hague rules.[g]
Lusitania was indeed officially listed as an auxiliary war ship, and her cargo had included an estimated 4,200,000 rounds of rifle cartridges, 1,250 empty shell cases, and 18 cases of non-explosive fuses, which was openly listed as such in her cargo manifest. The day after the sinking, The New York Times published full details of the ship's military cargo. Assistant Manager of the Cunard Line, Herman Winter, denied the charge that she carried munitions, but admitted that she was carrying small-arms ammunition, and that she had been carrying such ammunition for years. The fact that Lusitania had been carrying shells and cartridges was not made known to the British public at the time.
In the 27-page additional manifest, delivered to U.S. customs 4–5 days after Lusitania sailed from New York, and in the Bethlehem Steels papers, it is stated that the "empty shells" were in fact 1,248 boxes of filled 3" shell, 4 shells to the box, totaling 103,000 pounds or 50 tonnes.
President Woodrow Wilson refused to immediately declare war. During the weeks after the sinking, the issue was hotly debated within the U.S. government, and correspondence was exchanged between the U.S. and German governments. German Foreign Minister Von Jagow continued to argue that Lusitania was a legitimate military target, as she was listed as an armed merchant cruiser, she was using neutral flags and she had been ordered to ram submarines – in blatant contravention of the Cruiser Rules.
Von Jagow further argued that Lusitania had on previous voyages carried munitions and Allied troops. Wilson continued to insist the German government apologise for the sinking, compensate U.S. victims, and promise to avoid any similar occurrence in the future. The British were disappointed with Wilson over his failure to pursue more drastic actions. Secretary of State William Jennings Bryan advised President Wilson that "ships carrying contraband should be prohibited from carrying passengers ... [I]t would be like putting women and children in front of an army." Bryan later resigned because he felt the Wilson administration was being biased in ignoring British contraventions of international law, and that Wilson was leading the U.S. into the war.
A German decision on 9 September 1915 stated that attacks were only allowed on ships that were definitely British, while neutral ships were to be treated under the Prize Law rules, and no attacks on passenger liners were to be permitted at all. A fabricated story was circulated that in some regions of Germany, schoolchildren were given a holiday to celebrate the sinking of Lusitania. This claim was so effective that James W. Gerard, the U.S. ambassador to Germany, recounted it in his memoir of his time in Germany, Face to Face with Kaiserism (1918), though without substantiating its validity.
Almost two years later, in January 1917 the German Government announced it would again conduct full unrestricted submarine warfare. This together with the Zimmermann Telegram pushed U.S. public opinion over the tipping point, and on 6 April 1917 the United States Congress followed President Wilson's request to declare war on Germany.
In 2014 a release of papers revealed that in 1982 the British government warned divers of the presence of explosives on board:
Successive British governments have always maintained that there was no munitions on board the Lusitania (and that the Germans were therefore in the wrong to claim to the contrary as an excuse for sinking the ship) ... The facts are that there is a large amount of ammunition in the wreck, some of which is highly dangerous. The Treasury have decided that they must inform the salvage company of this fact in the interests of the safety of all concerned.
On 3 May a flotilla set sail from the Isle of Man to mark the anniversary. Seven Manx fishermen in The Wanderer had rescued 150 people from the sinking ship. Two of the bravery medals awarded to the crew members are held at the Leece Museum in Peel.
There are a number of conspiracy theories relating to the last days of Lusitania.
British Government deliberately putting Lusitania at risk
There has long been a theory, expressed by historian and former British naval intelligence officer Patrick Beesly and authors Colin Simpson and Donald E. Schmidt among others, that Lusitania was deliberately placed in danger by the British authorities, so as to entice a U-boat attack and thereby drag the US into the war on the side of Britain.  A week before the sinking of Lusitania, Winston Churchill wrote to Walter Runciman, the President of the Board of Trade, stating that it is "most important to attract neutral shipping to our shores, in the hope especially of embroiling the United States with Germany."
Beesly concludes: "unless and until fresh information comes to light, I am reluctantly driven to the conclusion that there was a conspiracy deliberately to put Lusitania at risk in the hope that even an abortive attack on her would bring the United States into the war. Such a conspiracy could not have been put into effect without Winston Churchill's express permission and approval."
At the post-sinking inquiry Captain Turner refused to answer certain questions on the grounds of war-time secrecy imperatives. The British government continues to keep secret certain documents relating to the final days of the voyage, including certain of the signals passed between the Admiralty and Lusitania. The records that are available are often missing critical pages, and lingering questions include the following: 
- Were the British authorities aware (thanks to the secret decryption activities of Room 40) that a German submarine was in the path of Lusitania, but failed to divert the ship to a safer route?
- Did they also fail to provide a destroyer escort, although destroyers were available in a nearby port?
- Was the ship ordered to reduce speed in the war zone, for reasons that have been kept secret ever since?
- How did such a big ship sink so quickly from a single torpedo strike?
Undeclared war munitions
Lusitania was officially carrying among her cargo 750 tons of rifle/machine-gun ammunition, 1250 cases of shrapnel artillery shells with the explosive burster charges loaded but no fuses or propellant charges, and the artillery fuses for those shells stored separately. Beesly has stated that the cargo also included 46 tons of aluminium powder, which was used in the manufacture of explosives and which was being shipped to the Woolwich Arsenal, while Erik Larson has stated that the cargo included 50 barrels and 94 cases of aluminium powder, as well as 50 cases of bronze powder. Author Steven Danver states that Lusitania was also secretly carrying a large quantity of nitrocellulose (gun cotton), although this was not listed on the cargo manifest either.
Furthermore, there was a large consignment of fur, sent from Dupont de Nemours, an explosives manufacturer, and 90 tons of butter and lard destined for the Royal Navy Weapons Testing Establishment in Essex. Although it was May, this lard and butter was not refrigerated; it was insured by the special government rate but the insurance was never claimed. In September 2008, bullets of a type known to be used by the British military were recovered from the wreck by diver Eoin McGarry. They were found in an area of the ship not previously known to have been carrying cargo.
Alleged bombardment/destruction of the wreck
It has been alleged that the wreck was bombed by the Royal Navy. A Dublin-based technical diver, Des Quigley, who dived on the wreck in the 1990s, reported that the wreck is "like Swiss cheese" and the seabed around her "is littered with unexploded hedgehog mines".
In February 2009, the Discovery Channel television series Treasure Quest aired an episode titled "Lusitania Revealed", in which Gregg Bemis, a retired venture capitalist who owns the rights to the wreck, and a team of shipwreck experts explore the wreck via a remote control unmanned submersible. At one point in the documentary an unexploded depth charge was found in the wreckage.
Professor William Kingston of Trinity College, Dublin claimed that "There's no doubt at all about it that the Royal Navy and the British government have taken very considerable steps over the years to try to prevent whatever can be found out about the Lusitania".
The wreck of Lusitania lies on its starboard side at an approximately 30-degree angle in roughly 300 feet (91 m) of water, 11 miles (18 km) south of the lighthouse at Kinsale. The wreck is badly collapsed onto her starboard side, due to the force with which she struck the bottom coupled with the forces of winter tides and corrosion in the decades since the sinking. The keel has an "unusual curvature" which may be related to a lack of strength from the loss of its superstructure. The beam is reduced with the funnels missing presumably to deterioration.
The bow is the most prominent portion of the wreck with the stern damaged by depth charges. Three of the four propellers were removed by Oceaneering International in 1982. Expeditions to Lusitania have shown that the ship has deteriorated much faster than Titanic has, being in a depth of 305 feet (93 m) of water. When contrasted with her contemporary, Titanic (resting at a depth of 12,000 feet (3,700 m)), Lusitania appears in a much more deteriorated state due to the presence of fishing nets lying on the wreckage, the blasting of the wreck with depth charges and multiple salvage operations. As a result, the wreck is unstable and may at some point completely collapse.
Simon Lake's attempt to salvage in the 1930s
Between 1931 and 1935 an American syndicate comprising Simon Lake, one of the chief inventors of the modern submarine, and a US Navy officer, Captain H.H. Railey, negotiated a contract with the British Admiralty and other British authorities to partially salvage Lusitania. The means of salvage was unique in that a 200-foot (61 m) steel tube, five feet in diameter, which enclosed stairs, and a dive chamber at the bottom would be floated out over the Lusitania wreck and then sunk upright, with the dive chamber resting on the main deck of Lusitania. Divers would then take the stairs down to the dive chamber and then go out of the chamber to the deck of Lusitania. Lake's primary business goals were to salvage the purser's safe and any items of historical value. It was not to be though, and in Simon Lake's own words, "... but my hands were too full"—i.e. Lake's company was having financial difficulties at the time—and the contract with British authorities expired 31 December 1935 without any salvage work being done, even though his unique salvage tunnel had been built and tested.
Gregg Bemis' salvage efforts
In 1967 the wreck of Lusitania was sold by the Liverpool & London War Risks Insurance Association to former US Navy diver John Light for £1,000. Gregg Bemis became a co-owner of the wreck in 1968, and by 1982 had bought out his partners to become sole owner. He subsequently went to court in Britain in 1986, the US in 1995 and Ireland in 1996 to ensure that his ownership was legally in force.
None of the jurisdictions involved objected to his ownership of the vessel but in 1995 the Irish Government declared it a heritage site under the National Monuments Act, which prohibited him from in any way interfering with her or her contents. After a protracted legal wrangle, the Supreme Court in Dublin overturned the Arts and Heritage Ministry's previous refusal to issue Bemis with a five-year exploration license in 2007, ruling that the then minister for Arts and Heritage had misconstrued the law when he refused Bemis's 2001 application. Bemis planned to dive and recover and analyse whatever artefacts and evidence could help piece together the story of what happened to the ship. He said that any items found would be given to museums following analysis. Any fine art recovered, such as the paintings by Rubens, Rembrandt and Monet among other artists believed to have been in the possession of Sir Hugh Lane, who was believed to be carrying them in lead tubes, would remain in the ownership of the Irish Government.
In late July 2008 Gregg Bemis was granted an "imaging" licence by the Department of the Environment, which allowed him to photograph and film the entire wreck, and was to allow him to produce the first high-resolution pictures of her. Bemis planned to use the data gathered to assess how fast the wreck was deteriorating and to plan a strategy for a forensic examination of the ship, which he estimated would cost $5m. Florida-based Odyssey Marine Exploration (OME) were contracted by Bemis to conduct the survey. The Department of the Environment's Underwater Archaeology Unit was to join the survey team to ensure that research would be carried out in a non-invasive manner, and a film crew from the Discovery Channel was also to be on hand.
A dive team from Cork Sub Aqua Club, diving under licence, discovered 15,000 rounds of the .303 (7.7×56mmR) calibre rifle ammunition transported on Lusitania in boxes in the bow section of the ship. The find was photographed but left in situ under the terms of the licence. In December 2008, Gregg Bemis's dive team estimated a further four million rounds of .303 ammunition were on the ship at the time of its sinking. Mr. Bemis announced plans to commission further dives in 2009 for a full-scale forensic examination of the wreck. A salvage dive in July 2016 recovered, then lost, a telegraph machine from the ship. This caused controversy, because the dive was unsupervised by anyone with archaeological expertise and because the telegraph was thought to have clues to the ship's sinking.
1984 British legal action
In 1982 various items were recovered from the wreck and brought ashore in the United Kingdom from the cargo of Lusitania. Complex litigation ensued, with all parties settling their differences apart from the salvors and the British Government, who asserted "droits of admiralty" over the recovered items. The judge eventually ruled in The Lusitania,  QB 384,  1 All ER 1011, that the Crown has no rights over wrecks outside British territorial waters, even if the recovered items are subsequently brought into the United Kingdom.[h] The case remains the leading authority on this point of law today.
Many works of art, media and entertainment were inspired by the sinking of the vessel. These are discussed in Sinking of the RMS Lusitania.
- Avis Dolphin, a survivor
- Charles T. Jeffery, a survivor
- List by death toll of ships sunk by submarines
- The Carpet from Bagdad (1915), a film, of which a reel was recovered from the wreck in 1982
- Patrick Beesly#British 'plot...to endanger the Lusitania '
- The ship's overall length is often misquoted at either 785 or 790 feet. 
- Germany's second submarine campaign against the Allies during the First World War was unrestricted in scope, as was submarine warfare during the Second World War.
- Referred to in Lusitania, by Preston (2002a), and Lusitania: An Illustrated Biography by Layton (2010).
- New photographic evidence presented in Lusitania: An Illustrated Biography.Layton (2010)
- Testimony of A.A. Booth at the Mersey Inquiry.
- From Beesly (1982), pp. 84–85: U-20 log entry transcript. Log first published in L'illustration in 1920
- From NY Times & 9 May 1915, p. 4; "Justification of the sinking of the liner Lusitania by German submarines as a man of war was advanced today by Dr Bernhard Dernburg, former German Colonial Secretary and regarded as the Kaiser's official mouthpiece in the United States. Dernburg gave out a statement at the Hollenden Hotel following his arrival in Cleveland to address the City Club at noon on Germany's attitude in the present war."
- Section 518 of the Merchant Shipping Act 1894 had originally applied to wrecks found or taken possession of within UK territorial limits, but section 72 of the Merchant Shipping Act 1906 extended that provision to wrecks later brought into those limits; the court held that as there was no duty on the salvors to bring the wreck into UK waters, the Crown had no rights to wreck, or under the ancient Royal Prerogative relating to "wreck of the sea throughout the realm, whales and great sturgeons taken in the sea or elsewhere within the realm" (Statute of 17 Edw II, c. 11).
- Atlantic Liners.
- The Lusitania Resource. "The Lusitania Resource: Lusitania Passengers & Crew, Facts & History". Rmslusitania.info. Retrieved 3 June 2016.
- (Ballard & Archbold 2005, p. 45)
- (Ballard & Archbold 2005, p. 57)
- "The Lusitania, therefore, carried over 4 million rounds of small-arms ammunition (.303 calibre), almost 5,000 shrapnel shell casings, and 3,240 brass percussion fuses." Choosing War: Presidential Decisions in the Maine, Lusitania, and Panay Incidents, by Douglas Carl Peifer, Oxford University Press, 1 June 2016, pg 269:
- "More lethal cargo loaded into the forward holds between the bow and bridge included 4,2 million rounds of Remington .303 rifle ammunition consigned to the British Royal Arsenal at Woolwich; 1,248 cases of shrapnel-filled artillery shells from the Bethlehem Steel Corporation, each case containing four 3-inch shells for a total of some fifty tons; eighteen cases of percussion fuses; and forty-six tons of volatile aluminium powder used to manufacture explosives." Lusitania: Triumph, Tragedy, and the End of the Edwardian Age, by Greg King, Penny Wilson, St. Martin's Press, 24 February 2015 – page 5
- Davidson 1997, p. 89.
- Butler 2003, p. 215.
- Carlisle 2009, p. 73.
- Tucker & Roberts 2005, p. 1146.
- Simpson & 13 October 1972, p. 60.
- Lusitania divers warned of danger from war munitions in 1982, papers reveal, The Guardian, 1 May 2014.
- Government papers released in 2014 confirmed the ship was carrying war material, facebook.com; accessed 23 February 2017.
- Ramsay 2001, pp. 6-10.
- Ramsay 2001, pp. 12–17.
- Ramsay 2001, pp. 19–21.
- Venzon & Miles 1995, p. 357.
- Maritime Quest; entry Lusitania 1871 retrieved 1 October 2015
- New York Times, 27 June 1901: "LUSITANIA WRECKED OFF NEWFOUNDLAND COAST; Passengers Numbering More than 350 Escape in Lifeboats", Wrecksite.eu; retrieved 1 October 2015.
- Peeke, Jones & Walsh-Johnson 2002, p. 5.
- Peeke, Jones & Walsh-Johnson 2002, pp. 5–8.
- Peeke, Jones & Walsh-Johnson 2002, pp. 22–24.
- Ramsay 2001, p. 25.
- Ballard & Dunmore 1995, p. 45.
- Maxtone-Graham 1978, p. 33.
- Peeke, Jones & Walsh-Johnson 2002, pp. 18–20.
- Peeke, Jones & Walsh-Johnson 2002, pp. 20–21.
- Keeling 2013.
- Peeke, Jones & Walsh-Johnson 2002, pp. 21–22.
- Fox 2004, p. 403.
- Peeke, Jones & Walsh-Johnson 2002, pp. 10–11,14.
- Peeke, Jones & Walsh-Johnson 2002, pp. 12–13.
- Peeke, Jones & Walsh-Johnson 2002, p. 13.
- Ramsay 2001, pp. 22–23.
- Layton, J.Kent (2015). Lusitania An Illustrated Biography.
- Peeke, Jones & Walsh-Johnson 2002.
- Peeke, Jones & Walsh-Johnson 2002, pp. 25–27.
- Ramsay 2001, pp. 23–24.
- Peeke, Jones & Walsh-Johnson 2002, pp. 27–28.
- Archibald, Rick & Ballard, Robert.The Lost Ships of Robert Ballard, Thunder Bay Press: 2005; p. 46.
- Archibald, Rick & Ballard, Robert."The Lost Ships of Robert Ballard," Thunder Bay Press: 2005; pp. 51-52.
- Titanic Inquiry.
- Layton 2010, p. 55.
- Hackett & Bedford 1996, p. 171.
- Simpson 1972, p. 159.
- Peeke, Jones & Walsh-Johnson 2002, pp. 29–31.
- Peeke, Jones & Walsh-Johnson 2002, pp. 32–34.
- Full text of "The Hudson-Fulton celebration, 1909, the fourth annual report of the Hudson-Fulton celebration commission to the Legislature of the state of New York. Transmitted to the Legislature, May twentieth, nineteen ten", at https://archive.org/stream/cu31924092228497/cu31924092228497_djvu.txt
- Sep 28th, 3:00 PM - 4:30 PM The First Aerial Canoe: Wilbur Wright and the Hudson-Fulton Flights, by John Sanford, Core Scholar Libraries, Wright State University, at http://corescholar.libraries.wright.edu/cgi/viewcontent.cgi?article=1008&context=following
- The Half Moon passing the great steamship Lusitania, Hudson-Fulton Celebration, New York, U.S.A. The J. Paul Getty Museum, at http://www.getty.edu/art/collection/objects/84092/hawley-c-white-company-the-half-moon-passing-the-great-steamship-lusitania-hudson-fulton-celebration-new-york-usa-about-1903/
- Denson 2006, p. 135.
- Watson 2006, p. 9.
- Craughwell & Kiester 2010, p. 133.
- NY Times & 9 May 1915.
- ICRC & 22 April 1930.
- Simpson 1972, p. 60.
- Layton 2010.
- Beesly 1982, p. 95.
- Preston 2002a, pp. 76-77.
- Preston 2002b, pp. 91-92.
- Larson, Erik (2015). Dead Wake.
- Simpson & 13 October 1972, p. 69.
- Butler 2003, p. 213.
- "Articles referring to the German embassy warnings". The Washington Times. 1 May 1915. p. Front page.
- "Lusitania people resource". Merseyside Maritime Museum. National Museums Liverpool.
- Preston 2002b, pp. 216–217.
- Kemp, Bill (3 May 2015). "PFOP: Lusitania sinking claimed life of famed local Elbert Hubbard". The Pantagraph. Retrieved 18 April 2016.
- Jones 2001, p. 78.
- Halsey 1919, p. 255.
- Watson 2006.
- NY Times & 10 May 1915.
- Doswald-Beck & 31 December 1995, p. 124.
- Ciment & Russell 2007, p. 379.
- Rea & Wright 1997, p. 196.
- Erik Larson. "Dead Wake: The Last Crossing of the Lusitania". Books.google.co.za. Retrieved 3 June 2016.
- Jones 2001, p. 73.
- Tucker & Roberts 2005, p. 1413.
- Brune 2003, p. 265.
- Sondhaus 2011, p. 276.
- Brune 2003, p. 365.
- Zieger 1972, pp. 24-25.
- Paterson et al 2009, p. 73.
- Brune 2003, p. 366.
- Gardiner, Gray & Budzbon 1985, p. 137.
- Quinn 2001, pp. 54–55.
- Protasio 2011, pp. 200-201.
- The Guardian & 1 May 2014.
- "Lusitania divers warned of danger from war munitions in 1982, papers reveal", The Guardian, 1 May 2014.
- Cunard Line.
- "RMS Lusitania: Manx flotilla marks centenary of sinking". BBC News. Retrieved 4 May 2015.
- Beesly 1982, p. 90.
- Schmidt 2005, p. 71.
- Denson 2006.
- Beesly 1982, Chapter 7.
- Steiger & Steiger 2006.
- Doenecke 2011.
- Preston 2002a, p. 384.
- "The Lusitania, therefore, carried over 4 million rounds of small-arms ammunition (.303 caliber), almost 5,000 shrapnel shell casings, and 3,240 brass percussion fuses." Choosing War: Presidential Decisions in the Maine, Lusitania, and Panay Incidents, by Douglas Carl Peifer, Oxford University Press, 01 Jun 2016, pg 269:
- "More lethal cargo loaded into the forward holds between the bow and bridge included 4,2 million rounds of Remington .303 rifle ammunition consigned to the British Royal Arsenal at Woolwich; 1,248 cases of shrapnel-filled artillery shells from the Bethlehem Steel Corporation, each case containing four 3-inch shells for a total of some fifty tons; eighteen cases of percussion fuses; and forty-six tons of volatile aluminum powder used to manufacture explosives." Lusitania: Triumph, Tragedy, and the End of the Edwardian Age, by Greg King, Penny Wilson, St. Martin's Press, 24 Feb 2015 – page 5
- Gittelman & Gittelman 2013, p. 199.
- Hoehling 1996, p. 27.
- Beesly 1982.
- Danver 2010, p. 114.
- Sides & Goodwin Sides 2009.
- Treasure Quest.
- Bishop 2003.
- Evening Post & 15 January 1932.
- Popular Mechanics & February 1932.
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Newspapers, journals and other media
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- Greenhill, Sam (20 December 2008). "Secret of the Lusitania: Arms find challenges Allied claims it was solely a passenger ship". Daily Mail. Retrieved 17 March 2015.
- Mullally, Erin (January–February 2009). "Lusitania's Secret Cargo". Archaeology: A publication of the Archaeological Institute of America. Archaeological Institute of America. 62 (1).
- Rogers, Paul (March–April 2005). "How Deep Is His Love". Stanford Magazine. Stanford Alumni Association.
- Sharrock, David (2 April 2007). "Millionaire diver wins right to explore wreck of the Lusitania". The Times.
- Simpson, Colin (13 October 1972). "Lusitania". Life Magazine. p. 68. Retrieved 17 March 2015.
- Shortall, Eithne (20 July 2008). "Riddle of Lusitania sinking may finally be solved". The Times.[needs update]
- "The Lusitania – A Salvage Project". Evening Post. Wellington, New Zealand. 15 January 1932. Retrieved 21 May 2013.
- "Lusitania divers warned of danger from war munitions in 1982, papers reveal". The Guardian. 1 May 2014.
- "Lusitania Treasure to be Raised". Popular Mechanics. Hearst Magazines. 57 (2): 177. February 1932. Retrieved 17 March 2015.
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- "Lusitania was unarmed" (PDF). New York Times. 10 May 1915.
- "A Deadly Cargo and the Falsifed Manifests". Lusitania Online: The Home Port of RMS Lusitania. Retrieved 18 March 2015.
- "Terror at Sea – Sinking of the Lusitania". Discovery Channel. Archived from the original on 24 March 2009. Retrieved 7 May 2009.
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- Doswald-Beck, Louise (31 December 1995). "San Remo Manual on International Law Applicable to Armed Conflict at Sea". International Committee of the Red Cross. Retrieved 18 March 2015.
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- "Testimony of Edward Wilding, Recalled". British Wreck Commissioner's Inquiry. 7 June 1912. Archived from the original on 5 February 2008. Retrieved 23 June 2017.
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- Bailey, Thomas A. (October 1935). "The Sinking of the Lusitania". The American Historical Review. Oxford University Press. 41 (1): 54–73. doi:10.2307/1839355. JSTOR 1839355.
- Bailey, Thomas A. (September 1936). "German Documents Relating to the Lusitania". The Journal of Modern History. The University of Chicago Press. 8 (3): 320–337. doi:10.1086/468453. JSTOR 1881539.
- Bailey, Thomas A.; Ryan, Paul B. (1975). The Lusitania Disaster: An Episode in Modern Warfare and Diplomacy. Free Press. ISBN 978-0029012406.
- Bernier, Michelle (2010). Did these Stories Really Happen?. CreateSpace Independent Publishing Platform. ISBN 9781450585361.
- Burns, Greg (2012). Commemoration of Death: The Medals of the Lusitania Murders. CreateSpace Independent Publishing Platform. ISBN 9781479115730.
- Burns, Greg. "www.lusitaniamedal.com". Retrieved 19 March 2015.
- Doubleday, F.N. (January 1908). "A Trip on the Two Largest Ships". The World's Work: A History of Our Time. XV: 9803–9810. Retrieved 10 July 2009.
- Droste, C.L.; Tantum, W.H., eds. (1972). The Lusitania Case. Riverside, Connecticut: Patrick Stephens Ltd. ISBN 978-0-85059-097-5.
- Larson, Erik (2015). Dead Wake: The Last Crossing of the Lusitania. New York: Crown Publishing. ISBN 978-0-307-40886-0.
- Layton, J. Kent (June 2013). The Edwardian Superliners: a Trio of Trios. Amberley publishing. ISBN 978-1445614380.
- Ljungström, Henrik. "The Great Ocean Liners: Lusitania". Retrieved 19 March 2015.
- Molony, Senan (2004). Lusitania, an Irish Tragedy. Mercier. ISBN 978-1-8563-5452-3.
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- Sauder, Eric; Marschall, Ken (1991). RMS Lusitania: Triumph of the Edwardian Age. Redondo Beach, CA: Trans-Atlantic Designs. ISBN 978-0-9633946-0-6.
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|Wikimedia Commons has media related to Lusitania (ship, 1907).|
|Wikisource has the text of the 1921 Collier's Encyclopedia article Lusitania.|
- Lest We Forget: The Lusitania – from Encyclopedia Titanica
- RMS Lusitania, Public Broadcasting Service (PBS)
- Lusitania pictures: Construction, engine, and interior photos; disaster and wreck illustrations' – BigBadBattleships.com
- The Home Port of RMS Lusitania – Lusitania.net
- Lusitania on Chris' Cunard Page
- RMSLusitania.info – passenger and crew lists, biographies, and deck plans of the Lusitania
- People of the Lusitania - biographies of crew and passengers on the final voyage
- Lusitania: life, loss, legacy - a major new exhibition at Merseyside Maritime Museum in Liverpool to mark the centenary year of the sinking
- RMS Lusitania on the wrecksite
- CWGC record of Lt. Robert Matthews (Lusitania Passenger), reference only
- Lusitania: Theodore Roosevelt Blames Woodrow Wilson Shapell Manuscript Foundation
- Professor Joseph Marichal (Lusitania Passenger KIA WWI), reference only
- British Wreck Commissioner's Inquiry
- Maritimequest RMS Lusitania Photo Gallery
- Photo of one of the Lusitania's salvaged propellers at Merseyside Maritime Museum in Liverpool
- Lusitania sinking with photos from UK National Archives and BBC videos
- "Lusitania, British Cunard liner". Encyclopedia Americana. 1920.
- Photographs of Q.S.T.S. Lusitania The album contains 59 photographs of exterior and interior views of the Cunard Steamship Company ship, R.M.S. Lusitania. Photographs in the album are by Bedford Lemere & Co., architectural photographers to His Majesty the King.
- Historical footage of the Lusitania, europeanfilmgateway.eu
- People of the Lusitania Crew and passengers on board the Lusitania
- "Mr. Charles Emelius Lauriat, Jr". Lusitania Resource.
- IWM Interview with survivor Jane Lewis
- IWM Interview with survivor Alice Drury
- The Lusitania in rough seas, painting by Antonio Jacobsen
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