USS Aroostook (CM-3)

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USS Aroostook CM-3 H99617.jpg
USS Aroostook in harbor
United States
Name: USS Aroostook
Cost: $1,350,000 (hull and machinery)[1]
Launched: 26 March 1907, as SS Bunker Hill
Acquired: 12 November 1917
Commissioned: 7 December 1917
Decommissioned: 10 March 1931
Renamed: Aroostook, November 1917
  • ID-1256 (Mine planter), November 1917
  • CM-3 (Minelayer), mid-1920
  • AK-44 (Cargo ship), May 1941
Struck: 5 February 1943
Fate: Sold for scrap in October 1947
General characteristics
Type: Minelayer
Displacement: 3,800 long tons (3,900 t)
Length: 395 ft (120 m)
Beam: 52 ft 2 in (15.90 m)
Draft: 16 ft (4.9 m)
Speed: 20 kn (23 mph; 37 km/h)
Complement: 313
Armament: 1 × 5 in (130 mm)/51 cal gun, 2 × 3 in (76 mm)/50 cal dual purpose guns, 2 × .30 in (7.6 mm) Colt machine guns

USS Aroostook (ID-1256/CM-3/AK-44) was the Eastern Steamship Company's Bunker Hill converted for planting the World War I North Sea Mine Barrage. Bunker Hill was built in 1907 at Philadelphia, Pennsylvania for passenger service between Boston and New York City. Bunker Hill and her sister ship Massachusetts were among the eight ships acquired by the U.S. Navy in November 1917. The two coastal passenger steamers were converted to minelayers at the Boston Navy Yard.

Service history[edit]

World War I for USS Aroostook–1918[edit]

After a brief shakedown cruise in mid-June 1918, Aroostook took on board a load of mines and then began a voyage across the Atlantic Ocean in the company of her sister minelayer, USS Shawmut. This voyage, aided by the novel technique of refueling at sea, took her to Scotland, where in July she participated in laying the North Sea Mine Barrage, laying thousands of mines across the mouth of the North Sea in order to create a barrier for German U-boats trying to depart from German seaports to the open Atlantic. Aroostook laid a total of 3,180 mines in this operation:

  • planted 320 mines during the 3rd minelaying excursion on 14 July,
  • planted 320 mines during the 4th minelaying excursion on 29 July,
  • planted 290 mines during the 5th minelaying excursion on 8 August,
  • planted 330 mines during the 6th minelaying excursion on 18 August,
  • planted 310 mines during the 7th minelaying excursion on 26 August,
  • planted 290 mines on 30 August to complete the 7th minefield after USS Saranac was unable to lay its mines,
  • planted 320 mines during the 9th minelaying excursion on 20 September,
  • planted 330 mines during the 10th minelaying excursion on 27 September,
  • planted 330 mines during the 11th minelaying excursion on 4 October, and
  • planted 340 mines during the final 13th minelaying excursion on 24 October.[2]

This effort, nearly completed, was the major operation of the U.S. Navy in European waters during World War I, and it came to an end on 11 November 1918 with the Armistice with Germany and the end of fighting in World War I. USS Aroostook steamed home to the East Coast in December 1918

An aircraft tender, 1919–1931[edit]

During the spring of 1919, USS Aroostook was refitted as an "aircraft tender" to support the attempt by U.S. Navy naval aviators to make the first transatlantic crossing of the Atlantic Ocean by air. The Navy had four huge Curtiss NC floatplanes built for the project. These aircraft were twice the size of contemporary aircraft. The route for this attempt used southeastern Newfoundland and the Portuguese Azores Islands as stopping-off points for refueling and maintenance work on the new planes, and for rest and mess periods for their aviators. In the event of the attempt, mechanical problems and lack of replacement parts necessitated the cannibalization of one of the aircraft, leaving three "Nancys" for the attempt.

Aroostook at Trepassey Bay in May 1919.

During the first half of May 1919, Aroostook was waiting at the port of Trepassey, Newfoundland, to serve as a floating base for the three medium-sized Curtiss NC floatplanes that took off from the New York City area on 16 May. After taking care of the Curtiss NCs and their crews, and seeing them off towards the Azores, Aroostook next steamed to England, where she rendezvoused with the NC-4, the only airplane to complete the transatlantic flight, at the end of May. The crewmen of Aroostook then disassembled the NC-4 and loaded her onto the ship for the voyage back to United States.

In August and early September, Aroostook carried a cargo of naval mines and supplies to California via the Panama Canal. She spent the rest of the year on the West Coast carrying out transportation missions and also as the aviation flagship for the Pacific Fleet.

Though she continued to be classified as a "minelayer", and she received the warship designation CM-3 (minelayer) in mid-1920, Aroostook's remaining active service was as an aircraft tender. Throughout the 1920s, she mainly served on the Eastern Pacific Ocean, but she made occasional voyages to the Caribbean Sea and the Atlantic Seaboard to take part in the annual, massive "fleet problem" exercises.

Aroostook also steamed to Hawaii and back in 1925 and 1928, including on the first occasion as the support aircraft tender for a pioneering attempt to fly two patrol planes from the West Coast to Hawaii.

Decommissioning and sale, 1931–1947[edit]

Taken out of commission in March 1931 at the Puget Sound Navy Yard, Bremerton, Washington, Aroostook was laid up in reserve for the next decade. With World War II raging in Europe, and the war threatening to spread worldwide soon, she was considered for reactivation as a cargo ship, and in May 1941, she was redesignated AK-44. However, her age and her limited capabilities kept her inactive. In February 1943, Aroostook was stricken from the Naval Vessel Register and then transferred to the War Shipping Administration. Regaining the name Bunker Hill, she stayed in port for the rest of the war. Although she was sold in 1947 to a firm headed by Anthony Cornero that planned to use her as a floating casino off of Malibu,[3] those plans fell through, and the old ship was next seized by the U.S. Government, which sold her for scrapping in October 1947.


  1. ^ "Table 21 - Ships on Navy List June 30, 1919". Congressional Serial Set. U.S. Government Printing Office: 762. 1921.
  2. ^ Belknap, Reginald Rowan The Yankee mining squadron; or, Laying the North Sea mining barrage (1920) United States Naval Institute p.110
  3. ^ Associated Press, "Cornero Says His Gambling Ships Will Be Lawful", The San Bernardino Daily Sun, San Bernardino, California, Saturday 6 April 1946, Volume 52, page 1.

External links[edit]