О сервисе Прессе Правообладателям Связаться с нами Jet Planes Normally Fly In The Lower Part Of The Dash Update Авторам Рекламодателям. This plane will fly at a speed five to six times above the speed of sound, e.g., it will cover the distance between Tokyo and Moscow in less than two hours. The diameter of the fuselage will be 4 meters and the overall length meters, with the cabin accomodating passengers. The future superplanes of such a class will have no windows, but the passengers can enjoy watching the panorama of the Earth on the TV monitor at the front of the cabin.  At high velocities the air resistance in the lower atmosphere is so great that the skin is heated to very high temperature. The only way out is to fly higher.  The only disadvantage is that propeller planes fly slower than jet planes. However, it has recently been announced that specialists succeeded in solving this problem. If the engine experiences unusual difficulty accelerating during start, a hot start may occur. There won't be enough airflow to cool the initial combustion of fuel within the engine. Acceptable temperature and time limits are published within individual aircraft flight manuals to prevent engine damage. 2) No Starter Cutout.  This can result in a highly-visible jet of flame out of the back of the engine, which may be tens of feet long. There may be no indication of an anomaly to the flight crew until the cabin crew, ground crew, or control tower draws attention to the problem.  A hung start occurs when the engine lights off normally but doesn't accelerate to idle RPM. This is usually the result of insufficient power to the engine from the starter. Live from the Flight Deck.
All jet engines require high temperature gas for good efficiency, typically achieved by combusting hydrocarbon or hydrogen fuel. Combustion temperatures can be as high as K (F) in rockets, far above the melting point of most materials, but normal airbreathing jet engines use rather lower . Sep 28,  · When the twin-engine aircraft is certified, part of its assessment is based on how long it can fly on a single-engine. To put it into actual time, a Boeing Dreamliner is certified for ETOPS This means that the plane can fly on routes that take it minutes from the . Jul 12,  · Aircrafts typically fly at higher altitudes because air gets thinner as planes ascend higher into the sky, translating in less drag. That means at higher altitudes planes can fly faster and use considerably less fuel. The "preferred region” in the airline industry usually begins at 35, feet and ends at 42, feet.

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