Bell P-59

P-59 Airacomet
Bell P-59B Airacomet at the National Museum of the United States Air Force, Dayton, Ohio
Role	Fighter
National origin	United States
Manufacturer	Bell Aircraft
First flight	1 October 1942
Primary users	United States Army Air Forces United States Navy Royal Air Force
Number built	66

The Bell P-59 Airacomet was a twin jet-engined fighter aircraft, the first of the United States, designed and built by Bell Aircraft during World War II. The United States Army Air Forces were not impressed by its performance and cancelled the contract when fewer than half of the aircraft ordered had been produced. Although no P-59s entered combat, the fighter paved the way for another design generation of U.S. turbojet-powered aircraft, and was the first turbojet fighter to have its turbojet engine and air inlet nacelles integrated within the main fuselage.

Major General Henry H. "Hap" Arnold became aware of the United Kingdom's jet program when he attended a demonstration of the Gloster E.28/39 in April 1941. The subject had been mentioned, but not in depth, as part of the Tizard Mission the previous year. He requested, and was given, the plans for the aircraft's powerplant, the Power Jets W.1, which he took back to the U.S. He also arranged for an example of the engine, the Whittle W.1X turbojet, to be flown to the U.S in October 1941 in the bomb bay of a USAAC Consolidated B-24 Liberator, along with drawings for the more powerful W.2B/23 engine and a small team of Power Jets engineers. On 4 September, he offered the U.S. company General Electric a contract to produce an American version of the engine, which subsequently became the General Electric I-A. On the following day, he approached Lawrence Dale Bell, head of Bell Aircraft Corporation, to build a fighter to utilize it. Bell agreed and set to work on producing three prototypes. As a disinformation tactic, the USAAF gave the project the designation "P-59A", to suggest it was a development of the unrelated Bell XP-59 fighter project which had been canceled. The design was finalized on 9 January 1942, and construction began. In March, long before the prototypes were completed, an order for 13 "YP-59A" preproduction machines was added to the contract.

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