the speed of the engines
It depends on your definition of cheap. There are many radio controlled aircrafts that are under $100. You can now find some that are half of that. You can shop for cheaper aircrafts at http://www.redrockethobbies.com/
The max speed of an MD80 is 500kt, cruising speed around 440kt.
i think abot 20
Idle speed is PCM controlled and is not adjustable.Idle speed is PCM controlled and is not adjustable.
Idle speed is computer controlled and is not adjustable.Idle speed is computer controlled and is not adjustable.
Supersonic air craft
Idle speed is computer controlled and is not adjustable.Idle speed is computer controlled and is not adjustable.
The top speed of the F-16 is Mach 1.5. The cruising speed is about 800kmph. The F-16 is one of advanced aircrafts in the world.
Larger aircraft have larger wings, larger wings create more lift. Also, a small aircraft's descent speed is (for example: a Cessna 152) <65kts, a Boeing 747's descent speed is 150-180kts.
There is no governor to remove. Speed is controlled by the ECU.There is no governor to remove. Speed is controlled by the ECU.
an athlete keeps its speed by their center of gravity
Take off speed is different for different aircrafts. There is no one speed for all aircraft. Usually depending on the load etc, take off speed would be the speed at which enough lift is generated to enable the aicraft to lift off the ground.