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Tsybin LL-3

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Sven, 25.10.2013

Patrick. I don't think you
could be further from the
facts if you said it was a
Concord prototype.

Patrick, 25.10.2013

this project never reached sucess until the produtction and operational service of MiG-25 Foxbat

, 15.10.2011

this is amazing airplane! I like

DebtMan, 18.10.2010

is possible what Russia was taked on Manchuria in the last stages of Pacific War a few Ohkas and latest study for built...¿a Russian suicide rocket?...or is possible was in the same yaer was taked in Germany many V1´s and study for convert a research plane.The 2nd hipotesis is more probable what occurs.

mike1204, 29.11.2009

The Soviet OKB of P. V. Tsybin, which began with troop-carrying gliders and after the war built the LL (flying laboratory) series of high-speed research aircraft, including examples with a forward-swept wing. Perhaps knowing something of Lockheed’s U-2, the V-VS asked for an interception-proof reconnaissance aircraft to reach 3000 km/h (1,862 mph) at 30000-m (98,425-ft) altitude. Tsybin helped by producing the NM-1 (or LL 3) research aircraft, with twin AM-5 engines on the blunt tips of a stubby trapezoidal wing, and a very slim body carrying a normal tail. It was not especially fast, but intended to reach Mach 2.80 in a dive. Test pilot A-K Sultan flew the NM-1 as an unpowered glider (above, with tufted port wing for aerodynamic observations by chase aircraft), which was towed by a Petlyakov Pe-2 in 1957, and it later made ten powered flights with powerplant installed, but it was considered (politically) a dangerous aircraft and, to some degree, overtaken by events – such as reconnaissance satellites, about which few Westerners could teach the Soviets anything.

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