Q: How fast do planes go?
A: Military turboprops cruise at 350 mph (560 km/hr) and jet fighters routine exceed the speed of sound (768 mph or 1235 km/hr at sea level).


Q: How high do planes go?
A: Civilian passenger jets cruise at between 30,000 and 39,000 feet. Military aircraft can attain greater altitudes. Prop planes are limited to about 20,000 feet. A small plane can legally fly 2000 feet.