sam_10's+expert+piece--sr+71+blackbird

Have you ever wondered what the largest passenger or cargo plane and what the fastest plane that take off on there own are? If so read this.

But first I think you should learn how they fly. Aircrafts can fly because of a force called lift. Lift is created by speed and wings on a plane. This is how planes can fly.

Planes are the largest type of aircraft. For example the Airbus a380 is planed to hold more than 800 passengers. And there are bombers that are huge.

Did you know that the sr-71 blackbird is the fastest plane that can take off from the ground it is over 100 feet long! It can go at speeds in excess of Mach 3.3(meaning it can go 3.3 times the speed of sound). Even at mach 3.3 and at 80,000 feet in the air it can get a picture of something on the ground.

Aren't these cool planes!