Being an aerospace engineering student, I would like to share some facts related to my topic.
- There are only 3 ways to fly
a. Be lighter than air
b. Push air down
c. Push any other substance down
- Convergent-Divergent nozzle (De-laval nozzle)
This is the type of nozzle used in fighter aircrafts and other aircrafts that can fly faster than the speed of sound. The air flow starts from the left side of the nozzle, reaches a maximum speed of Mach number 1(equal to sound speed) at the throat(the narrow middle part) and then accelerates to supersonic speeds in the divergent part.
- Propeller based engines are the most efficient form of aircraft engines at low speed flights.
- Most commercial jets such as Boing 747 or Airbus A320 use Turbo-fan engines, which are a combination of a jet engine with a fan at the front. This type of engines are very efficient at speeds of 60% to 80% the speed of sound, the speeds at which most commercial jets fly.
(Boing 747)
(Airbus A320)
- Sound travels almost 18 times faster through aluminium than air.
- It is Impossible to send a single stage rocket to space with our current technology. That is every rocket that is used to deliver a payload to space has at least 3 stages.
