M231.01 - IDENTIFY THE FOUR FORCES THAT ACT UPON AN AIRCRAFT

How must the four forces that act on an aircraft be arranged to achieve equilibrium?

• Drag must equal weight and thrust must equal lift.

• Lift must equal lift and thrust must equal thrust.

• Lift must equal weight and thrust must equal drag.

• All of the Above

Equilibrium can be attained by a glider, NOT by a powered aircraft.

• True

• False

If thrust is greater than drag ...

• the aircraft’s forward speed will increase.

• the aircraft will descend.

• the aircraft will climb higher.

• the aircraft’s speed will decrease.

If weight is greater than lift ...

• the aircraft’s forward speed will increase.

• the aircraft will descend.

• the aircraft will climb higher.

• the aircraft’s speed will decrease.

If drag is greater than thrust ...

• the aircraft’s forward speed will increase.

• the aircraft will descend.

• the aircraft will climb higher.

• the aircraft’s speed will decrease.

Gliders have no thrust and can gain its forward motion by exchanging the energy of its descent for thrust.

• True

• False

What do pilots often call flying straight and level?

• Centeredness

• Equilibrium

• Stall

• Yaw

How can a powered aircraft generate thrust?

• By people pushing the aircraft.

• By reducing the number of items carried in flight.

• By running its engine.

• All of the above

A powered aircraft will always have the high glide ratio of a glider.

• True

• False

In a powered aircraft, the engine adds weight, and both the propeller and engine body add to the drag.

• True

• False