Tags: Aircraft.
The Lockheed XP-49 (company Model 522) was an advancement on the P-38 Lightning for a fighter in response to U.S. Army Air Corps proposal 39-775. Intended to use the new 24-cylinder Pratt & Whitney X-1800 engine this proposal which was for an aircraft substantially similar to the P-38 was assigned the designation XP-49 while the competing Grumman Model G-46 was awarded second place and designated XP-50.