Rob's Hangar

I had some problems with the tail not holding on pitchpumps with the Walkera 4G6 Helicopter. I’ve tried adjusting the rudder extent pot on the RX but even at maximum the tail wouldn’t hold. I always had some 20° turn on pitchpumps. I also played around with the gyro sense but that didn’t help either.

UPDATE: I’ve found that the pitchslider on the tail had too much play and caused the bad tail reaction. See my other post and vid on repairing the pitchslider. Still the longer carbon tail blades give a bit more power and a slighly better performance over the plastic ones.

I figured the tail might simply be too weak. So i made some tailblades from 0.6mm flat carbon, the same shape as the original ones, only about 5mm longer. They are 0.27gm before sanding and 0.26gm after sanding the profile and clear/white color (original plastic 0.3gm). The tail holds very well now, much more power. Also the piro rate is much higher now, i could turn the rudder extent way down and also decreased the D/R setting for the rudder channel. Only drawback is the increased risk of the blades hitting the ground – but im planning a new, longer carbon tailfin.

4G6 carbon tailblades

profile sanded, finished with clear coating

4G6 with carbon tailblades

Original tailblades and my design

comparison

carbon tailblades on the 4G6