Well yes, assuming if an airplane does not have a jet engine, it would not be called a jet.
No, a hovercraft is not an airplane. a hovercraft is a craft capable of moving over water or land on a cushion of air created by jet engines.
A vehicle in motion will have inertia - one which isn't moving will not.
It depends on what kind of jet or commercial airplane it is.
The first jet airplane was designed in Germany in the early 1940's.
Boeing made the first JET airplane with its Boeing 707, or Dash 80 as it was called before.
Gravity.
The airplane began to develop with the army and with the jet flyers.
Gulfstream makes the G550 airplane.
it is a type of fuel
1939
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