The Douglas A-1 Skyraider is an American single-seat attack aircraft in service from 1946 to the early 1980s. The Skyraider had a remarkably long and successful career; it became a piston-engined anachronism in the jet age, and was nicknamed "Spad", after the French World War I fighter.
The Douglas B-18 Bolo is an American medium bomber which served with the United States Army Air Corps and the Royal Canadian Air Force during the late 1930s and early 1940s. The Bolo was built by the Douglas Aircraft Company, based on its DC-2, and was developed to replace the Martin B-10.
The Consolidated B-32 Dominator was an American heavy strategic bomber built for United States Army Air Forces during World War II, which had the distinction of being the last Allied aircraft to be engaged in combat during World War II. It was developed by Consolidated Aircraft in parallel with the Boeing B-29 Superfortress as a fallback design should the B-29 prove unsuccessful. The B-32 only reached units in the Pacific during mid-1945, and subsequently saw only limited combat operations against Japanese targets before the end of the war. Most of the extant orders of the B-32 were canceled shortly thereafter and only 118 B-32 airframes of all types were built.
The Douglas XB-42 Mixmaster was an experimental bomber aircraft, designed for a high top speed. The unconventional approach was to mount the two engines within the fuselage driving a pair of contra-rotating propellers mounted at the tail in a pusher configuration, leaving the wing and fuselage clean and free of drag-inducing protrusions.
The Curtiss-Wright XF-87 Blackhawk was a prototype American all-weather jet fighter interceptor and the company's last aircraft project. Designed as a replacement for the World War II–era propeller-driven P-61 Black Widow night/interceptor aircraft, the XF-87 lost in government procurement competition to the Northrop F-89 Scorpion. The loss of the contract was fatal to the company; the Curtiss-Wright Corporation closed down its aviation division, selling its assets to North American Aviation.
The Douglas A-26 Invader is an American twin-engined light bomber and ground attack aircraft. Built by Douglas Aircraft Company during World War II, the Invader also saw service during several major Cold War conflicts. A limited number of highly modified United States Air Force aircraft served in Southeast Asia until 1969. It was a fast aircraft capable of carrying a large bomb load. A range of guns could be fitted to produce a formidable ground-attack aircraft.
The Lockheed XB-30 was the design submitted by Lockheed after the request by the United States Army Air Forces for a very heavy bomber, the same request that led to the Boeing B-29 Superfortress, the Douglas XB-31 and Consolidated B-32 Dominator.
The Douglas XB-31 was the design submitted by Douglas after the request by the United States Army Air Forces for a very heavy bomber aircraft, the same request that led to the Boeing B-29 Superfortress, Lockheed XB-30, and Consolidated B-32 Dominator.
The Boeing XB-39 Superfortress was a United States prototype bomber aircraft, a single example of the B-29 Superfortress converted to fly with alternative powerplants. It was intended to demonstrate that the B-29 could still be put into service even if the first choice of engine, the air-cooled Wright R-3350 radial engine, ran into development or production difficulties.
The North American Aviation XA2J "Super Savage" was a prototype carrier-based attack aircraft built in the early 1950s. It was developed by North American Aviation (NAA) from the smaller AJ Savage.
The Curtiss XP-62 was a prototype single-engine interceptor aircraft, that was built at the request of the United States Army Air Forces, by the Curtiss-Wright Corporation. It first flew in 1943.
The Lockheed XP-58 Chain Lightning was an American long-range fighter developed during World War II. Although derived from the successful P-38 Lightning, the XP-58 was plagued by technical problems with its engines that eventually led to the project's cancellation.
The Vultee A-31 Vengeance was an American dive bomber of World War II, built by Vultee Aircraft. A modified version was designated A-35. The Vengeance was not used operationally by the United States, but was operated as a front-line aircraft by the British Royal Air Force, the Royal Australian Air Force, and the Indian Air Force in Southeast Asia and the Southwest Pacific. The A-31 remained in service with U.S. units until 1945, primarily in a target-tug role.
The Curtiss XSB3C was a proposed development by Curtiss-Wright of the Curtiss SB2C Helldiver dive bomber, submitted to meet a U.S. Navy requirement for a new dive bomber to replace the SB2C in service. Considered inferior to the competing Douglas XSB2D and requiring higher grade fuel than was provided on aircraft carriers, the project was cancelled before any aircraft were built.
The Consolidated P-30 (PB-2) was a 1930s United States two-seat fighter aircraft. An attack version called the A-11 was also built, along with two Y1P-25 prototypes and YP-27, Y1P-28, and XP-33 proposals. The P-30 is significant for being the first fighter in United States Army Air Corps service to have retractable landing gear, an enclosed and heated cockpit for the pilot, and an exhaust-driven turbo-supercharger for altitude operation.
The Henschel Hs 124 was a twin-engine heavy fighter, attack aircraft and light bomber designed in Nazi Germany. After two prototypes had been built, work on the project was cancelled.
The Consolidated XP4Y Corregidor was an American twin-engined long-range maritime patrol flying boat built by Consolidated Aircraft for the United States Navy. Only one was built and a production order for 200 was cancelled.
The Brewster XA-32 was an American attack aircraft, a mid-wing type with an internal bomb bay. The prototype had the R-2800 engine, but it could take the intended R-4360 powerplant. After a dismal set of test results, the XA-32 did not enter production.
The Savoia-Marchetti SM.89 was an attack aircraft designed by Alessandro Marchetti and built by Savoia-Marchetti. Only one example was built, the prototype (MM.543).
The CANSA FC.20 was a twin engine reconnaissance bomber/ground attack monoplane designed and built in Italy in 1941. Several versions with different armament and engines were flown but only the FC.20bis ground attack variant reached squadron service, in very small numbers, before the 1943 armistice.
