Thanks.

Good pont, I didn't realise that it is actually yawing the same direction as the main rotor so the Gyro must be set the wrong way. I did check the gyro response but must not have noticed it was going the wrong way. Either that or the tail blades are not pitched properly in the neutral position? I'll have to wait until next week before I can try it again. []

I thought the charger seemed a bit dodgy. I haven't tried it yet as the batteries were already charged, but I definatley won't try it on the LiPo (even though the supplier said I could). I might use it to Charge the NiMH until I get a [link=http://www.modelflight.com.au/rc_model_chargers/swallow_battery_charger.htm]Swallow Charger [/link] that will do both LiPo and NiMH. I'll make sure I keep an eye on it though.

Can anyone recommend a good (and cheap) charger for both NiMH and LiPo Batts? The Swallow seems to be the best vaule one that I have seen so far.

If I get 8x NiMH AA batts for the Tx (I've currently got some heavy duy disposables in it) can I use the DC plug on the back of the Tx to charge them? What rating power supply would I need? Are there any calculations to determine NiMH charge time given the voltage and the mah rating?