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Some airplanes have had up to 8 propellers.
No. Gliders, jets and rocket-propelled aircraft do not have propellers.
Yes, some airplanes have propellers.
Helicopters have rotors airplanes have propellers
ailerons bank (turn) an airplane left or right. the only change in altitude. the elevators (witch are located on the rear of a plane) changes your altitude
that is a fine answer
No, they aren't needed because the few airplanes with geared propellers have single-speed gearboxes. Most aircraft either directly drive the prop off the engine's crankshaft, or they use jet engines which power the plane without propellers.
Graham Robson has written: 'Prop perfection' -- subject(s): Aerial Propellers, Airplanes, Conservation and restoration, Maintenance and repair, Propellers, Aerial
If the elevators are up, then the plain goes up but if they are down, the plane goes down.
The aircraft mechanics usually put propellors on.
Some have 1 and many others have 2 or even 4 propellers.
36,000 feet