6th Grade Pupil’s Book • UNIT 4 - The history of the aeroplane • Lesson 2, p.43
1) Passenger and cargo planes
These planes carry passengers and cargo. Their speed is just below the speed of sound (350-750 MPH). Their engines are very powerful and they can travel very quickly with many people and goods.
|A British Airways Boeing 747 passenger plane.|
|A Boeing 747 Cargo plane. Notice that there are no windows on the fuselage.|
2) Supersonic planes
760 MPH is the speed of sound. These planes can fly up to three times the speed of sound (760 -2200 MPH). They have a special engine and they are designed with lightweight materials.
|A British Airways Concorde. It had a top speed of Mach 2 or 1.300 MPH|
|The SR-71B Blackbird holds the record for the fastest plane. |
It could travel at 3 times the speed of sound or 2200 MPH. It was a spy plane.
Rockets fly at speeds 5 to 25 times the speed of sound (3500 - 17000 MPH) as they orbit around the earth. They have a very powerful engine in order to travel at this speed.
|The Space Shuttle Discovery |
and its seven-member crew liftoff
from Kennedy Space Center's
launch pad on 28th October 2007.
|Space shuttle Endeavour docked to the |
International Space Station in orbit around the Earth.
Propeller aircraft use one or more propellers to create thrust in a forward direction. Most of these planes can fly at 100-350 MPH. Examples of this kind of planes are the two- and four-seater passenger planes and seaplanes that can land on water.
|A two-seater plane|
|A four-seater plane|
Now look at the pictures of the planes, read the information and decide if statements 1-5 are True or false:
1. The Boeing travels very fast.
2. Rockets fly 4 times the speed of sound.
3. The seaplane can land on water.
4. The Concorde travels below the speed of sound.
5. The Concorde is faster than the SR-71B Blackbird.