der Mast hat mit dem Pfeifen wohl nichts zu tun ....
Ich hatte das Problem auch einmal und deswegen mit dem Entwickler selbst kontakt.
Zitat:
The trailing edge of some wings is quite blunt.
This is a safety matter (sharp wings will not improve you when you hit them!)
This blunt training edge causes FOV (Flow Induced Vibration).
On the 60cm mast the vibration does not match the resonant frequency
of the aluminium mast, so there is no noise (well there is, but it is outside
the audible spectrum).
On the 90cm the mast vibrates at 552 mhz and this is what you hear…
but it is caused by the wing… the mast is just the speaker kind of.
The way to stop it is to sand the trailing edge of the wing.
Be careful though….. making the wing sharp reduces or stops noise but it
does make the wing dangerous…..
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