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Lockheed's initial concept was a particularly large aircraft called CL-2016, nicknamed "battlecruiser" for its size, that resembled its SR-71/YF-12 with large delta wings and engines mounted in nacelles spaced away from the fuselage and would have had similarly high operating speed and altitude as a missile platform (or "missileer" per Lockheed).
The Lockheed SR-71 Blackbird holds the official Air Speed Record for a crewed airbreathing jet engine aircraft with a speed of 3,530 km/h (2,190 mph). The record was set on 28 July 1976 by Eldon W. Joersz and George T. Morgan Jr. near Beale Air Force Base, California, USA.
The F-35 was the product of the Joint Strike Fighter (JSF) program, which was the merger of various combat aircraft programs from the 1980s and 1990s. One progenitor program was the Defense Advanced Research Projects Agency (DARPA) Advanced Short Take-Off/Vertical Landing (ASTOVL) which ran from 1983 to 1994; ASTOVL aimed to develop a Harrier jump jet replacement for the U.S. Marine Corps ...
The aircraft was used to test three propellers through 1956, [8] to speeds slightly exceeding Mach 1.0, [13] the first propeller-equipped aircraft to do so. [8] The propeller was tested in level flight to about M 0.9 with the help of the turbojet afterburners, and to just over M 1.0 in a dive.
On 24 May the first prototype attained a speed of 648.5 km/h (402.9 mph) at 6,900 m (22,638 ft). It could not, however, attain the speed originally specified by the Air Force with this engine. The second prototype took to the air on 9 May, but the third aircraft, the first to be armed, was forced to wait until 6 June, as problems with its ...
The maximum weight of the aircraft grew from 19.5 to 22.4 t (43,000 to 49,400 lb), to allow for increased payloads. [ citation needed ] The MiG-29KUB two-seat fighter, intended for pilot training, can also conduct combat missions identical to the single-seat fighter.
In the English-speaking world, "F" is often now used to indicate a fighter (e.g. Lockheed Martin F-35 Lightning II or Supermarine Spitfire F.22), though "P" used to be used in the US for pursuit (e.g. Curtiss P-40 Warhawk), a translation of the French "C" (Dewoitine D.520 C.1) for Chasseur while in Russia "I" was used for Istrebitel, or ...
The ultimate version of the fighter was the G.50/V (Veloce – fast) built in mid-1941 by CMASA and equipped with a Daimler-Benz DB 601 engine of 1,075 CV. During tests at Fiat Aviazione's airfield in Turin , it reached a top speed of 570 km/h (350 mph) in level flight and climbed to 6,000 m (20,000 ft) in five minutes 30 seconds.