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Results tagged with rotor-head
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user 1961
30
votes
Can a helicopter stand on the ground upside down on its rotor head?
This looks like a model that was carefully set up to spin.
First the facts: FAR part 27 regulates the design criteria for rotorcraft. Specifically, FAR 27.337 states:
The rotorcraft must be designed …
- 237k
24
votes
Is it possible to design a helicopter with fixed rotor blades only (no blade angle/flap/pitch)?
Scaling laws are your enemy here.
Model helicopters can be controlled with changes in rotational speed, but for full-sized helicopters the energy needed to quickly change the speed of their rotors re …
- 237k
7
votes
Would an aircraft with no ailerons, no elevators and no rudders be safely flyable?
This will work as long as the propellers produce enough thrust and blade pitch can be adjusted fast enough to outrun all eigenmodes.
As soon as you need to throttle back (and eventually you must, to …
- 237k