i think for civil aircrafts below 10,000feet and for war planes below 25000 feet
Heinkel in Germany built the first flying jet aircraft.
Stratosphere
Its a Boeing 747-400 aircraft ( Jumbo Jet)
Aeroplane is a general term for any type of flying aircraft. A jet plane is one that is powered by jet engines.
An aircraft is any machine that can fly in air. The jet is simply another type of propulsion, that is, of making an aircraft move. Jet engines are very common in many aircraft of all kinds. Many aircraft also have turbo-props, which is really just a jet engine driving a propeller. These are especially useful in slow flying transports and helicopters.
ALL aircraft fly in the Troposphere regardless of distance.
To the best of my knowledge, the minimum flying height of a jumbo jet is 1,000 feet AGL (above ground level). However, above cities or strategic objects, the minimum height may be different - these restrictions can be found in airspace maps.
Frank Whittle invented the Jet Aircraft.
Providing the plane flies high enough, it will be pushed by the jet stream when flying east. The wind will oppose it when flying west.
I think Jet Airways have 97 Aircraft
An aircraft propelled by jet engines rather than piston engines.
No jet aircraft were used in WW1.