with the last being withdrawn from use on 2 June 1942. Variants Y1P-25 Further development of Lockheed YP-24 with all-metal wing, Curtiss V-1570-27 Conqueror turbo-supercharged engine. Two fixed forward firing .30 in machine guns and one flexibly mounted gun in rear cockpit. One built. Y1A-11 Ground-attack version of Y1P-25. Powered by unsupercharged engine and armament of 4x forward firing .30 in guns in nose, one in rear cockpit and up to 400 lb (182 kg) of bombs. One built. YP-27 Proposed variant of Y1P-25 with Pratt & Whitney R-1340-21G Wasp radial engine. Unbuilt. Y1P-28 Proposed variant of Y1P-25 with 600 hp R-1340-19 Wasp; unbuilt. P-30 Initial production batch for Army Air Corps. Curtiss V-1570-57 turbo-supercharged engine. Four built, later redesignated PB-2. A-11 Initial production ground-attack aircraft, with unsupercharged V-1570-59 engine. Four built. P-30A Main production fighter powered by turbo-supercharged Curtiss V-1570-61 engine; 50 built, redesignated PB-2A. PB-2A Special Seventh PB-2A modified to single-seat configuration. Crashed during flight testing. XP-33 Proposed version with Pratt & Whitney R-1830-1 Twin Wasp engine; unbuilt. XA-11A Conversion of A-11 as testbed for Allison XV-1710-7. One converted. Specifications (PB-2A) See also References Notes Bibliography Angelucci, Enzo. and Peter M. Bowers. The American Fighter. New York: Orion Books, 1987. . Dorr, Robert F. and David Donald. Fighters of the United States Air Force. London: Temple Press/Aerospace, 1990. Francillon, René J. Lockheed Aircraft since 1913. London: Putnam, 1982. . Green, William and Gordon Swanborough. "The end of the beginning ... The Seversky P-35". Air Enthusiast Ten, July–September 1979, pp. 8–21. Pelletier, Alain J. "Singular Two-Seater: Consolidated's PB-2A – The USAAC's Only Two-Seat Fighter". Air Enthusiast No. 85, January/February 2000, pp. 2–11. ISSN 0143-5450. Swanborough, Gordon and Peter M. Bowers. United States Military Aircraft Since 1909. Washington, D.C.: Smithsonian, 1989. . Wegg, John. General Dynamics Aircraft and their Predecessors. London: Putnam, 1990. . External links Consolidated P-30/PB-2A National Museum of the USAF fact sheet: Consolidated P-30 Consolidated P-30 P-30 Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1934