Thunder Tiger Interference
 

I recently installed a new motor in my Raptor (ThunderTiger 39). Now i seem to have intermittent interference. Throttle and pitch change and tail rotor behaves uncontrollable at times. I have since learned that loose parts can cause interference i.e. metal.
I just checked to be sure the motor is secure and found that I could tighten the mounting screws almost a 1/4 turn. Also I didn't have a rubber gasket between the muffler and the engine. Could that cause a problem, even if there is no noticeable play between the muffler and engine.

RE: Thunder Tiger Interference
 

After tightening the engine mounts do you still have this problem?

RE: Thunder Tiger Interference
 

Gonna find out this week. Just tightened them Tuesday evening. I will let you know.

RE: Thunder Tiger Interference
 

You dont need any gasket between the muffler and engine and you surely don't want a rubber one.

If something isn't loose you have a bad bearing somewhere.

RE: Thunder Tiger Interference
 

Sorry guys it took so long to respond. Since I talked to you last I have replaced the crystals (changed the channel from 16 to 59), and bonded the screw on the underside of the muffler to prevent it from vibrating. I ran about 3/4 of a tank through the heli and the tail shifted violently. I had an experienced pilot watching and he stated that the the swashplate tilted, indicating a glitch or interference.
What I failed to mention was that this heli had a modified antenna system (from the seller I bought it from). He had mounted a solid rubber type antenna inside the canopy and had shortened the antenna wire coming from the receiver and had soldered the two antennas together. The rubber antenna had a small white wire that was attached to the receiver antenna. I removed all this, mounted a new receiver and ran the antenna outside the canopy and through an antenna tube mounted to the skids. I flew today with two tanks of gas, no jitters or glitches.

RE: Thunder Tiger Interference
 

Good show.