I HAVE RAPPY 30 V2 WITH MAVERICK PRO CARBON BLADES. I HAVE PUT A GALLON OF FUEL THROUGH IT WITH NO PROBLEMS, THEN YESTERDAY I FILLED UP WENT OUT TO FLY AND SPOOLED UP TO GET THE BLADES EVENED OUT, TIGHTENED THEM DOWN AND STARTED TO HOVER. WHILE IN THE AIR ABOUT 6' OFF THE GROUND I NOTICED A WOBBLE FROM SIDE TO SIDE, I LANDED AND CHECK THE BLADES, LOOSENED THEM UP AND SPOOLED UP AGAIN, AND LOCKED THEM DOWN AGAIN, AND GOT ABOUT 6' AND SAME THING??? I ADDED A LITTLE MORE THROTTLE AND BROUGHT THE HEAD SPEED UP A LITTLE AND IT STOPPED. SO I LANDED AND ADJUSTED THE PITCH CURVE SO I COULD GET A LITTLE HIGHER HEAD SPEED AND TOOK OFF AGAIN AND SAME THING UNTIL IT GETS A HIGHER HEAD SPEED. HAS ANYONE GOT ANY IDEAS ON WHAT IS CAUSING THIS??? THANKS IN ADVANCE.


CHRIS

First off, typing in all caps is considered yelling.

About your problem. Raptors will wobble at low head speeds. Did you lube your dampeners with silicon grease when you installed your spindle shaft?

The blades really only need to be tight enough not to flop around when you hold the heli up sideways. You should have to smack them a bit to get them to drop. That should be enough to prevent boom strikes. They need to be able to lead and lag a bit in flight but the wobble is either head speed or the spindle mor e than likely. If you do end up pulling the spindle, roll it on a piece of glass, you'll be able to tell if its bent even slightly by ear. If it is replace it. Alternatively, pull one blade off, stick an allen driver on the spindle bolt and turn, watch the other blade tip, if it moves up and down replace the shaft.

Either way put some automotive di-electric silicon grease on the dampeners and shaft and push the shaft back and forth to spread the grease around a bit.

My 30 sometimes nods back and forth a little, but not so much that its unnerving.

The spindle shaft is lubed, very lightly though. I never noticed this until I put the carbons on it. So I took them off and put the factory woodies on and the same thing. I think that my head speed has something to do with it. If it is a common problem with raptors wobbling at low head speeds then so be it! I just never noticed it, Probably because my head speed has always been high and it got bumped down some how. I you have any more ideas please let me know!



Thanks, Chris



P.S. So if you type in all lowercase would you be whispering? LMAO JK!!!

Try this.

http://www.raptortechnique.com/ts-vibration.htm

This may be a bit of a long shot but possibly your flybar could have moved off-center. It had a similar response in a hover when mine was off a little bit.

Raptors wobble at low head speed. Keep the speed up and you should be good to go.