Run out of trim on rudder

[Leebert]

Hi Everyone
I have a (cheap e-bay) Honey Bee FP that I have finally managed to set up and I can hover tail in quite well (I think anyway ) but the tail motor died and I replaced it. The trouble is that now, even with the TX rudder trim fully to the left I still have to give the TX a bit of left stick to keep the heli straight. Also, the 4 in 1 RX unit doesn't have any Gyro gain so I'm stuck there.
Any ideas as to what I can do? I'm quite handy with a soldering iron and can change components if necessary.
Cheers
Leebert

[Thomas]

There are two pots on the receiver box, one does the gyro gain and the other the speed of the tail motor, not sure which, try tweeking the second one a tiny bit to increase the speed or you could increase or decrease the gain - I had the CP version and I never managed to get th tail to hold still.

[Leebert]

Hi Thomas
Unfortunately, the RX on my heli doesn't have any pots on it. I know the ones you are refering to as a friend has a Honey Bee FP and his has the pots on it but mine does not. I have a feeling mine was an especially cheap version!! :?
Cheers Leebert

[Leebert]

UPDATE!!

I found a fix on a US forum. My Honey Bee is a 'T' model and this is quite common apparently due to the no gyro controls on the Rx.

The two seperate ways forwards are... Trim off 2 to 3 mm off the ends of the tail rotor OR (the way I went) put two 1N4001 diodes in series with the positive feed to the tail motor to drop the voltage by approx 1.2 to 1.4 volts.
It works a treat and I have now got some trim left.
It's still a bugger to fly but a least it's not pirouetting all the time!!
If anyone wants more detail of the the diode fix, post a reply here and I'll take a photo and post it.
Regards
Lee