Steering in Three Turns: teacher key

Airplanes, grade 8 edition, written for 8th grade. How does a pilot steer a plane that has no road? Learn how hinged parts roll, pitch and yaw a plane, how flaps and spoilers help it land, and how a jet engine makes thrust.

Read the book. Print this page for the key.

Questions and answers

1. Which part of the plane controls pitch?
   • The elevators (answer)
   • The rudder
   • The ailerons
2. Why are spoilers put up right after touchdown?
   • To dump lift so the weight moves onto the wheels and the brakes work better (answer)
   • To make the plane climb
   • To slow the engines
3. What happens to lift when a plane doubles its speed, with everything else the same?
   • It doubles
   • It gives four times the lift (answer)
   • It stays the same
4. Why will a jet engine not work in outer space?
   • There is no surrounding air to supply its oxygen (answer)
   • It is too cold
   • It has no wings
5. Which type of turbine engine drives a propeller through a reduction gear?
   • Turbojet
   • Turboshaft
   • Turboprop (answer)

Words

• camber: wing's curve
• spoilers: lift-dumping plates
• slats: front wing parts
• nozzle: exhaust opening
• turboprop: propeller turbine engine