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An aeroplane has a stall speed of 100 kt at a mass of 1000 kg. If the mass is increased to 2000 kg, the new value of the stall speed will be:
  • A
    141 kt.
  • B
    150 kt.
  • C
    123 kt.
  • D
    200 kt.
The stall speed at increased weight is VS NEW = VS OLD × √(New W ÷ Old W) = 100 kts × √(2 000 kg ÷ 1 000 kg) = 100 × √2 = 141.42 kts ~ 141 kts.

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