In the Air, the Plane flys on the engines on the wing. If an engine goes out the engine stays out and it flys on the remaining ones. On the ground the Airport may have a few engines available to swap out if something is drastically wrong with the engine. Commericial Passenger aircraft have an Auxillary Power Unit (APU) that is a turbine engine that provides electrical and hydraulic power for emergencies or while a/c is parked on the ground. The Boeing 747 has its APU mounted in the tail--that is the exhaust you see when you look at the hole in the tail. Boeing 727 have an APU mounted in its wheel well; its inlet is on one side the the exhaust is on the other side. Usually on the ground, the aircraft is plugged into ground power carts and air conditioning carts, but the APU can be used.
One can get information on airplane engines from the website of the manufacturers of airplane engines. There will be many different answers to questions one may have.
There are many manufacturers of aeroplane or airplane engines. The leading manufacturers of airplane, aeroplane, or jet engines are Boeing, General Electric, and Pratt & Whittney.
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At least one(!), the biggest planes have six.
At least one(!), the biggest planes have six.
There is no such large airplane so far and such large ones will be necessary and impossible
The noise of the airplane comes from the engines.
Basically, the engine of the airplane provides thrust, which help it go forward. There are many types of engines that can do the job.
Depends on the airplane size and engines used.
The thrust is an airplane is provided by the engines.
An airplane accelerates due to the thrust generated by its engines. As the engines produce forward thrust, the aircraft gains speed. The thrust must overcome drag forces acting on the airplane to achieve acceleration.
The engines, driving propellers or jets, make the airplane move.