AERONAUTICAL LECTURING NOTES

What are the types of rockets? Based on the fuel (Propellant) type used Solid Propellant Liquid propellant Hybrid Electric rocket Ionic rocket What is missile? Missile is same like a rocket. The purpose of use is to destroy enemies. Missile will be launched in inclined position with reference to earth horizon. In what way does a rocket differ from aircraft? Rocket is operating in space where no air (No oxygen for  combustion ) is available and also in the air. So in order to have an efficient thrust from combustion it needs to have separate tank for oxygen storage. But aircraft since it is operating in air; it has air breathing engines. 

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.