Concorde (wallpaper 3) aircraft photo gallery | AirSkyBuster

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Concorde (wallpaper 3). Concorde aircraft images wallpaper gallery 3. Concorde airplane pictures collection 3. To be economically viable, Concorde needed to be able to fly long distances, and this required high efficiency. For optimum supersonic flight, turbofan engines were considered, but rejected, due to their larger cross-section which would cause excessive drag. Turbojets were found to be the best choice of engines. The engine developed was the twin spool Rolls-Royce/Snecma Olympus 593, a development of the Bristol engine first used for the Avro Vulcan bomber, and developed into an afterburning supersonic variant for the BAC TSR-2 strike bomber. The intake design for Concorde’s engines was critical. All conventional jet engines can take in air at only around Mach 0.5; therefore the air has to be slowed from the Mach 2.0 airspeed that enters the engine intake. In particular, Concorde needed to control the shock waves that this reduction in speed generates to avoid damage to the engines. This was done by a pair of intake ramps and an auxiliary spill door, whose position was moved during flight to slow the air down. Concorde (wallpaper 3). Concorde aircraft images wallpaper gallery 3. Concorde airplane pictures collection 3. The ramps were at the top of the engine compartment and moved down and the auxiliary spill door moved both up and down allowing air to flow in or out. The effectiveness of the intake system is such that, during supersonic flight, 63% of the aircraft's thrust is attributed to the intakes whilst the exhaust nozzles generate 29% and the engines just 8% of the thrust. Engine failure causes problems on conventional subsonic aircraft; not only does the aircraft lose thrust on that side but the engine creates drag, causing the aircraft to yaw and bank in the direction of the failed engine. If this had happened to Concorde at supersonic speeds, it could theoretically cause a catastrophic failure of the airframe. However, during an engine failure, air intake needs are virtually zero, so in Concorde, the immediate effects of the engine failure were countered by the opening of the auxiliary spill door and the full extension of the ramps, which deflected the air downwards past the engine, gaining lift and streamlining the engine, minimising the drag effects of the failed engine. Although computer simulations predicted considerable difficulties, in practice Concorde was able to shut down both engines on the same side of the aircraft at Mach 2 without any of the predicted control problems. Concorde pilots were routinely trained in simulators to deal with a double engine failure. Concorde (wallpaper 3). Concorde aircraft images wallpaper gallery 3. Concorde airplane pictures collection 3.