Helicopters - Engine Tone, Aerodynamics

[Hobbygeek]

Hi

I have just installed FMS and got it going with my Walkera 4 channel controller.

Two questions:

1: I notice that on the fixed wing aircraft the engine pitch changes with increase in throttle, but not the copters? Any reason for this? It certainly would help to get the audio feedback...

2: The heli models seem to lack stability to do with mass. I have a double rotor electric model, and I notice (in real life) that if you put an input to change pitch to the left for example, if you return the stick to zero the chopper will move left and quickly stabilise and hover vertically, because essentially it is a piece of mass hanging from the rotor blades, which has a stabilising effect not present in the models I've seen.....

Comments?

[cire]

That is because your actual flying model twin rotor is self-stabilising. That is the whole point of the twin rotor! A training aid.
A single rotor heli is NOT self-stab, just like the sim ones on fms. :)

[Hobbygeek]

Mmmm

I see. But even the twin rotor designs in the simulator are not self stabilising You have to fly it all the time.....

I would disagree with you on this though. Every chopper will be self stabising to a greater or lesser degree, because the mass of the aircraft hangs from the rotor???

Any ideas on the engine tone? Why different from fixed wing to chopper??