RMS Britannia at harbour.
|Owner:||British and North American Royal Mail Steam Packet Company|
|Builder:||Robert Duncan & Company, Greenock, Scotland|
|Launched:||5 February 1840|
|Maiden voyage:||4 July 1840|
|Out of service:||Sold to the Reichsflotte in March 1849|
|Career (German Confederation)|
|Out of service:||Transferred to the Prussian Navy in June 1852|
|Fate:||Sunk as a target ship in July 1880|
|Length:||207 ft (63 m)|
|Beam:||34 ft (10 m)|
|Draught:||16.8 ft (5.1 m)|
Two-cylinder side-lever engine
|Speed:||8.5 knots (15.7 km/h)|
|Range:||640 tons coal|
RMS Britannia was an ocean liner of the British and North American Royal Mail Steam Packet Company, later known as Cunard Steamship Company. She was launched on 5 February 1840, at the yard of Robert Duncan & Company in Greenock, Scotland. The ship and her sisters, Acadia, Caledonia, and Columbia, were the first ocean liners built by the company.
Description and service 
The Britannia was a large ship for the period, 207 feet (63 m) long and 34 feet (10.3 m) across the beam, with three masts. She had paddle wheels and her two-cylinder side-lever engine (from Robert Napier) had a power output of about 740 indicated horsepower. She was relatively fast for the time: her usual speed was about 8.5 knots (16 km/h), but she could do better if the winds and currents were favourable. She had a tonnage, or carrying capacity, of 1,154 tons (by the Builder's Old Measurement). She was capable of carrying 115 passengers with a crew of 82.
On her maiden voyage, starting on 4 July 1840, she made Halifax, Nova Scotia from Liverpool, England in 12 days and 10 hours, continuing on to Boston, Massachusetts. Her first homeward run from Halifax to Liverpool was made in just under 10 days at an average speed of about 11 knots (20 km/h), setting a new eastbound record which lasted until 1842.
She was joined by her sister ship Acadia in August 1840, by Caledonia in October 1840 and by Columbia in January 1841. All four ships could carry 115 passengers and 225 tons of cargo. The dining saloon was a long deck-house placed on the upper deck and there was also a 'ladies only' saloon. The fare to Halifax was 35 guineas, which included wines and spirits as well as food.
As Barbarossa in German service 
In March 1849 she was sold by Cunard to the German Confederation Navy and was renamed SMS Barbarossa. She had nine guns fitted, and was the flagship of the Reichsflotte under Karl Rudolf Brommy in the Battle of Heligoland. In June 1852 she was transferred to the Prussian Navy and used as a barracks ship at Danzig. In May 1880 she was decommissioned from the Prussian Navy and in July 1880 she was sunk as a target ship.
Film depiction of RMS Britannia 
- RMS Britannia on Chris' Cunard Page
- Lavery, Brian. "SHIP: The Epic Story of Maritime Adventure", p. 209. DK Publishing 2004.
- The Blue Riband of the North Atlantic
- Bernard Dumpleton, “The Story of the Paddle Steamer”, 1973, The Uffington Press, ISBN 0-85475-057-6
- MaritimeQuest- SS Britannia / Barbarossa
- Britannia on thegreatoceanliners.com
- SMS Barbarossa http://www.janmaat.de/m_dfbarbarossa.htm
- Britannia on Chris' Cunard Page http://www.chriscunard.com/britannia.php