Hi,

Engine: Enya .35
Radio: Futaba FP-7UHPS (Super 7 PCM 1024)
Gyro: Futaba FP-G154
Extra: FMA Copilot

My ZXX is losing signal as soon as the engine starts. With the engine off, I have no signal problems at all. So I know it is on the heli. I've had this heli since 1994 and never had this problem.

I had not flown in 4 years (I have a 4 yr old), and thought I would fly it again. I bought new batteries and filled it up and it flew like a champ. I did notice the clutch lining coming out, so I pulled the engine and JB welded the lining back in. It was too tight so I pulled the engine again to fix that. This is when the problems started.

At a 3 ft hover it lost signal and hit the ground in soft grass on the skids with no damage. I assumed low batteries on the tx because it read 9.6v. I charged the batteries and tried it again. This time at 5 ft above the ground it lost signal, climbed to 10 ft, rolled to 135 degrees and plowed into the ground. Even crashed on the ground with the engine off, the servos worked fine.

I rebuilt it, tied it down and tried again. Same thing. As soon as the engine starts, the tx has no affect on the heli. This is a new one for me so I searched the forum and one possibility is a dry bearing.

Does anyone know what bearings could be causing my problems on the ZXX? Also, my rx antenna is away from other metal like it has always been.

I did notice when I removed the remote wire from the glow plug, I got control back for a minute or so, then lost it again.

Any help would be appreciated. Thanks.......jster