Qwissit Aviation

PPL(A) – Private Pilot

Principles of Flight

12 of 60 questions in the app

Forces on the aeroplane

  1. Which force opposes weight in unaccelerated level flight? Easy
  2. Which force opposes thrust in unaccelerated level flight? Easy

Aerofoil and lift

  1. What is meant by the chord line? Easy
  2. What is the angle of attack? Easy
  3. Where is most of the lift produced in normal flight? Easy
  4. How does lift change if the airspeed doubles with all other conditions unchanged? Easy

Stalling and spinning

  1. What causes the airflow to separate from the wing (stall)? Easy
  2. What is the correct first action in a stall? Easy

Aerofoil and lift

  1. What does Bernoulli's equation state for a flow without friction? Medium
  2. How does the lift coefficient behave when the angle of attack is increased up to the critical value? Medium

Turning flight

  1. An aeroplane stalls at 60 kt in straight flight. Approximately what are the load factor and stalling speed in a level turn with 45° bank? Hard
  2. You double the speed while keeping the same bank angle. How does the turn radius change? Hard

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