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HomeScaleAircraftHelicopterScale Model RC Helicopters › Need help with vibration in MD500 Defender Penta blades
04-22-2011 08:15 PM  7 years agoPost 1
Krumrick2

rrApprentice

Sao jose dos Campos Brasil

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hi guys,

I have this MD500 Defender almost two years, I don't fly much with because lack of time, in fact the last time was 8 months ago !!

the problems appear ONLY when I fix the Missiles in the fuselage

since the first flight I have serious vibes problems, I mounted lot of this models with five blades, and this is only that I have this issues, I tried all the mods to avoid vibes, the mechanics is perfectly anchored to the fuse, the blades balanced 10 times, the main shaft, motor, belt....all verified many times and even changed parts...Always the same vibrations ONLY with the missiles pods.

This is the last video, clearly can see the vibrations on the pods.

Any thoughts??

The one is the MD500 Defender with TRex 600's mechanics, Lightning Heli Head and Thunder Tiger 600mm Carbon Blades...

Watch at YouTube

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04-23-2011 01:39 AM  7 years agoPost 2
iHover

rrVeteran

Berne , NY

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The trex 600 mechanics will flex at the top. I had a heck of a time on a couple of my 600 scale birds. Heres what I did on my 500 E

If I where doing it again I would have made the wooden base plate wider and anchored from the top of the mechanics in front of the head and behind down to the base plate.

You had me at Hover

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04-23-2011 02:35 AM  7 years agoPost 3
ScaleBrad

rrApprentice

Longwood, FL USA

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