Im seeing a lot of posts on this issue, so perhaps a few things to point out for those who might not have flown choppers like Mi8 much
1) Torque. Prop spins one way, it will try to equal and opposite the helicopter the other.
2) Rudder/tail rotor stops this. You need to bind this (ideally to pedals). yes you can use the keyboard, but no not really... pedals is by far most natural
3) even with pedals its still not going straight - the autopilot is broken down into 4 channels (pitch / roll / yaw / blade angles). If you have the YAW autopilot engaged, it will try and yaw into the direction you last timmed it. So if you are in a nice hover facing north, and press trimmer button, the rudder will keep trying to face north. the more you try and fly another direction, and the harder you press rudder to go this other direction, the more gradually the autopilot will keep yawing back to north.
to fix this, either disconnect yaw channel (the left most autopilot box) or press trimmer button once pointed in the direction you wish to be.
4) special options / rudder trim [x] - I massively recommend this in DCS heli's, because we dont have physical forces feeding back on our pedals letting us more precisely control the rudder based on where it "feels right". Therefore enable this option, apply as much rudder as you like, press pilot trimmer as normal, and along with the strick being trimmed out to netural, so is the rudder.
for those not used to flying helicopters, you need to keep using the "pilot trimmer" to set the forces to neutral everytime you change speeds or power settings, and many times coming in and out of extended hovers and even depending which way into the wind you are facing. This is not to be confused with the regular trim up/down/left/right which does exist on the hind and is an easy way to just add a bit of trim like in a plane.
I hope some of these tips help, but dont forget for the autopilots to be working, it needs proper power supply and gyro's etc, so if all the autopilots are not lit up (or stay on red) then you have other issues facing you.
I recommend binding autopilot off, trim reset button, pilot trim button, on 1 hat of your hotas and trying to keep it the same across every helo module. Then if rooms allows, I recommend binding another hat on your hotas to the 4 channels of the autopilot. Often times you will just want pitch and bank, other times just yaw. I use the button on the pinky position on the WH throttles for hovering - which already seems to work quite well in hind. hope this helps someone figure something out who maybe new to it all. hope you enjoy it too
