Word of the day


Spectacular stunts, such as rolls and loops, performed in general aviation aircraft specially designed to withstand the stresses of such maneuvers.

Word of the day

This is how lift is not always generated

  • Lifting airfoils are designed to have the upper surface longer than the bottom.
  • Air molecules travel faster over the top to meet molecules moving underneath at the trailing edge.
  • The upper flow is faster and from Bernoulli’s equation the pressure is lower. The difference in pressure across the airfoil produces the lift.

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