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American AIRCRAFT Carriers

The Wasp (CV.7) At Pearl Harbor On 8 August 1942, A Month Before She Was Sunk The Wasp (CV.7) At Pearl Harbor On 8 August 1942, A Month Before She Was Sunk

The Pacific War was to a large extent the war of the aircraft carrier; from

Pearl Harbor to Okinawa, it was the effective use of the carrier forces which

proved decisive. For the first time, battles were fought with hundreds of

miles of ocean between the combatants

USS Wasp

Under the terms of the Washington Naval Treaty the US Navy was restricted to 135,000 tons of aircraft carriers, and so could only build a further 14,700 tons of carriers after the completion of Lexington, Saratoga, Ranger, Yorktown and Enterprise.

Thus in 1935 an improved version of the Ranger was ordered, also with modest speed and light armour but big aircraft capacity. The opportunity was taken to eradicate the worst faults of the Ranger, and the new carrier was given a proper island superstructure and better compartmentation.

The USS IVasp (CV.7) was commissioned in April 1941, and from the autumn of that year was in the Atlantic on training duties. Late in March 1942 she went to the Mediterranean to ferry RAF Spitfires to Malta. At the beginning of July she left San Diego for the Pacific and took part in the Guadalcanal landings, where her aircraft flew more than 300 sorties. She missed the Battle of the Eastern Solomons as she had been detached to refuel, and she returned to Noumea to take on board a consignment of fighter aircraft for the US Marines on Guadalcanal,

Early in the afternoon of 15 September 1942 the Wasp flew off her fighters, but shortly afterwards she was hit by three torpedoes fired by the Japanese submarine 1-19. Two of the torpedoes struck her on the port side near the aviation gasoline tanks, while the third struck higher up and damaged the refueling system, which had already been ruptured.

The ship was very quickly gutted by fire and explosions, which proved impossible to contain as the torpedo detonations had also ruptured the fire mains. In less than an hour the order to abandon ship was given, and she continued to burn for another 3 Vz hours; finally the destroyer Lansdowne was ordered to sink her, and four torpedoes were fired.

The Wasp proved the least battle worthy of all American carriers, and her loss provided important lessons for the future. A board of enquiry showed that the majority of the damage was caused by the third torpedo-hit, for the first two hits had left the machinery and auxiliary power undamaged. However, the shock of the explosions and the 'whip' of the hull had knocked out electrical switchboards and the damage control organization. Thereafter a series of subsidiary explosions of bombs, torpedoes, ammunition and aircraft fuel tanks wrecked the ship.