YP-43 Lancer
| P-43 Lancer | |
|---|---|
 |
|
| A USAAF P-43 in 1942 | |
| Role | Fighter aircraft |
| Manufacturer | Republic Aviation Company |
| First flight | March 1940 |
| Introduction | 1941 |
| Retired | 1944 (China) |
| Primary users |
United States Army Air Corps United States Army Air Forces Chinese Nationalist Air Force Royal Australian Air Force |
| Produced | 1940–1941 |
| Number built | 272 |
| Developed from |
Seversky SEV-3 Seversky P-35 |
| Variants | Republic P-47 Thunderbolt |
The Republic P-43 Lancer was a single-engine, all-metal, low-wing monoplane fighter aircraft built by Republic, first delivered to the United States Army Air Corps in 1940. A proposed development was the P-44 Rocket. While no world-beater as a fighter, the P-43A had a very good high-altitude performance coupled with an effective oxygen system. Fast and well-armed with excellent long-range capabilities, until the arrival of the P-38, the Lancer was the only Allied fighter capable of catching a Japanese Mitsubishi Ki-46 "Dinah" reconnaissance plane at the speeds and heights at which they flew. In addition, the P-43 flew many long-range, high-altitude photo recon missions until replaced by F-4/F-5 Lightnings (P-38 variants) in both the USAAF and RAAF.
The Seversky Aircraft Company, which in 1939 changed its name to Republic, constructed a range of private venture, one-off variants of its P-35 design, featuring different powerplants and enhancements, designated AP-2, AP-7, AP-4 (which flew after the AP-7), AP-9, XP-41. The series included a carrier-based version designated the NF-1 (Naval Fighter 1) that was also built. The most significant of these was the AP-4, which served as the basis for future Seversky/Republic aircraft. It featured fully retractable landing gear, flush riveting, and, most significantly, a Pratt & Whitney R-1830-SC2G engine with a belly-mounted turbo-supercharger, producing 1,200 hp (890 kW) and good high-altitude performance. The turbo-supercharger had been refined by Boeing as part of the development program for the B-17 Flying Fortress, and the improved performance it offered was of great interest to other aircraft manufacturers.
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