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Marius
  • Member for 8 years, 7 months
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Design and performance of Bi-Planar Rotors or Propellers
That's a great way to explain it. I will add!
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Why does pressure remain constant in the boundary layer?
@Wyatt - Hopefully this helps: Bernoulli is derived from the conversation of energy, but it neglects several forms of energy transfer (e.g., viscosity, rotation, etc.). If I think of the boundary from an energy point of view slower/faster air has different kinetic energy and, if we neglect everything Bernoulli does, the only result of that must be a change in static pressure. However, if we don't, we see that change in kinetic energy is actually due, most notably, to viscous interactions with the nearby surface. You might think of Bernoulli like doing physics without accounting for friction.
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Is a glider on a winch directionally stable?
@Sanchises - if I read you correctly, you want me to keep going with the answer: my answer presently takes you up until you get a sideslip-induced rolling moment, but you want the dynamics after that? I would think it would be an uncoordinated turn, since no rudder has been applied, the wing pointing forward would be at a negative AoA, and the opposite wing has a positive AoA. In short, it seems like you would see some sort of fishtailing motion as the yaw would lag behind the roll. Loads could exceed the flight envelope in those turns, since the winch is providing consistent energy input.
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Why does flying not have any age restrictions like driving does?
@reirab -- the air service provider at my airport just took advantage of that. They are providing services as an air charter service under Part 135, and they do not have an age limit (providing you can keep passing the required medical).
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How do the Kaman K-225 rotor "planes" work?
Corrected bump stop to droop stop, which is correct for their usage in this rotor system.
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How do the Kaman K-225 rotor "planes" work?
I believe you are correct! Correction made. Thanks!
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