Helicopter Rocket

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What is helicopter?
Rotary wing aircraft with engine or engines (heavier than air) which can sustain in flight (within atmosphere), because of the lift produced by its rotary wings.

What is the major difference between Aircraft to rotor craft?
Aircraft needs runway to take-off and land whereas a rotor craft can take off and land without runway.

What is spacecraft?
A Fixed wing heavier than air aircraft, with engine, which can fly in space because of thrust.

What is rocket?
Rocket is a flying object which is operating on atmosphere as well as in space because of thrust developed by its engines.

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