Jet Engine is used in jets.
No, the jet engine had not been invented yet, so there were no "fighter jets"
jets are used for wars, shows and displays.
Under the wing
There is no actual answer, because a jet is called a jet because it has at least one jet engine.
The Pegasus
Well yes, assuming if an airplane does not have a jet engine, it would not be called a jet.
APU turns it over. These used to be on external cart on early jets but are now internal.
Jets are used in War purposes. The Stealth ones are used to spy other countries.
Early helicopters all used piston engines up to the 1960's . Now most helicopters use jets, except for a few small civilian helicopters. The jets are connected to a very strong and complex transmission which turns the main and tail rotors.
No, there were a few jets near the end, but none could be called 'super jets'.
Yes, jet is atype of aircraft engine. There are hundreds of types and makes of jets.
The Newer Cobra Jets Are only for Drag Racing and Are illegal on the street. Older Mustangs with the Cobra Jet Engine In it Were legal on the street and sometimes used for drag racing. So older Mustang Cobra Jets were not only made for racing but newer ones are only made for racing.