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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Robbe Cuatro - Millennium - Nova - Dyna-X > Wobble through RPM range...
 
 
ben1101
Senior Heliman
Location: Australia

Hi,

I am building up a Robbe Futura SE for AP, and have just fitted a Quattro tail boom, a Pro ZG26PUH and 800mm blades, I have just noticed a wobble through the 1100-1300RPM range, the frequency would suggest something in the rotorhead, but left to itself it amplifies suggesting something harmonic?? I was just wondering if this is a known issue with these machines or if there are any "hot spots" in the rotorhead that need to be kept in check...

Thanks!

Ben
11-14-2007 09:31 AM
 
 
tim tompkins
Senior Heliman
Location: Boston, Georgia sw Ga. Thomas County

The only time I ever saw a wobble at that low of a headspeed the orings in the head needed to be lubed. Be sure to have the spindle greased enough to slide easily into the rubber dampers. The normal headspeed on my se is 1800. TimT
11-14-2007 01:12 PM
 
 
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XHELI.COM . Autography FlightPower . Advantage Hobby

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Robbe Cuatro - Millennium - Nova - Dyna-X > Wobble through RPM range...
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