I have a Raptor 50 V2 (tt50) with MA500 blades, Mavrickk 80mm tail blades, Xcell paddles with one gram flybar weights (Balanced) and aluminum collective tray…everything else is stock. My problem is that I am getting a high frequency osculation that causes the 401 gyro to drift. When I used two layers of SIG servo tape to isolate the gyro the drifting stopped. The osculation was bad enough that it broke loose the foam between the adhesive tape. I first thought that this was due to the foam tape being old, but the same thing happened to new tape. As you fly the only noticeable result of the osculation is the main fuel tank sloshing and a 1/16 to 1/32-inch osculation (buzz) on the left side of the horizontal fin. I do not get any noticable vertical movement on the tail (what you get when your tail is out of balance). I recently replaced the main shaft, flybar and spindle with Mavrikk parts after a ding, but the problem was apparent before the crash.
I have balanced the main blades, flybar/paddles and fan. I have never had this type of vibration before. I have tried leaning and richening the engine…no change. It is more apparent at a higher head speed (stunt mode about 1900 RPM).
I do have my 401 gyro mounted on top of the servo tray. I was going to move it to the back to possibly lessen the vibration transmitting to the gyro. I don’t know if this will help or not but I am willing to try anything…that I can afford.
Has anyone had a similar problem? Any suggestions?