SS Black Osprey

SS West Arrow underway in mid 1918
History
Name	1918–1935: West Arrow 1935–1941: Black Osprey
Owner	1918: United States Shipping Board 1940: Ministry of War Transport
Operator	c. 1926–1940: American Diamond Lines 1940–1941: Cairn Line
Port of registry	1918–1940: United States 1941–1944: United Kingdom
Builder	Skinner & Eddy Seattle, Washington
Yard number	12[3]
Laid down	20 September 1917 as Jas. G. Eddy[2]
Launched	19 January 1918[2]
Completed	26 February 1918[2]
Identification	Official Number 216012[1]
Fate	torpedoed and sunk, 1941[1]
General characteristics
Type	Cargo ship
Tonnage	5,802 GRT[1] 8,800 LT DWT[2]
Length	409 ft 5 in (124.79 m) (LPP)[1]
Beam	54 ft 2 in (16.51 m)[1]
Propulsion	1 × triple-expansion steam engine[1]
Speed	10.5 knots (19.4 km/h)[1]

SS Black Osprey was a cargo ship for the American Diamond Lines and the British Cairn Line. She was formerly known as SS West Arrow when she was launched for the United States Shipping Board (USSB) during World War I. The ship was inspected by the United States Navy for possible use as USS West Arrow (ID-2585) but was neither taken into the Navy nor ever commissioned under that name.

West Arrow was built in 1918 for the USSB, as a part of the West boats, a series of steel-hulled cargo ships built on the West Coast of the United States for the World War I war effort. Information about her early career is largely absent, but by the 1920s, news reports revealed that the ship was sailing on the North Atlantic. By the mid-1920s, West Arrow was sailing for American Diamond on their cargo service to Rotterdam and Antwerp. In 1935, American Diamond changed the ship's name to Black Osprey and the ship continued in Rotterdam service.

After the outbreak of World War II, Black Osprey, still under the registry of the still-neutral United States, was detained twice by British authorities, before the U.S.-established "Neutrality Zone" ended Black Osprey's Dutch service in late 1939. Sailing under charter to the Isthmian Line in 1940, Black Osprey called at various ports in the Pacific Ocean. American Diamond sold Black Osprey to the British Ministry of War Transport in late 1940. During the ship's first transatlantic crossing under the British flag, she was sunk by German submarine U-96 on 18 February 1941, with the loss of 25 men. The 11 survivors were picked up by a Norwegian ship and landed in at Barry.