I have a Logitech X56 HOTAS, which I've already calibrated with the X-Plane 11 calibration tool. X-Plane had a built-in profile for an X56 HOTAS. When I throttle up dual-engine planes, it yaws so badly it looks like it is doing donuts. Any idea how I can set-up the HOTAS and fly a dual-engine plane, without it yawing uncontrollably?

Another thing I'm having trouble with is getting helicopters off the ground, with the X56 HOTAS. I throttle up and nothing. I'm stuck at the very first part of the helicopter tutorial: pulling the collective control up to get in the air. The tutorial said the HOTAS throttle will work, but the throttle on my HOTAS ain't doin' nothin'. Single-prop airplanes, like the Cessna and Ultralight are working fine with the throttle. And with the helicopters, although the HOTAS throttle does nothing, the moment I hit the F4 key on my keyboard, the helicopter is in the air (I tried both a freeware heli and the included heli).

Do you have any idea what I can do to fix those two problems?

Edited August 31, 20196 yr by Coriolis

That's a split throttle control, right? Try this: Go into Settings/Joystick and make sure your main throttle is set to Throttle 1, and the other is set to Throttle 2. I think you can set both to just "Throttle" if you don't want independent control. 

Helicopters work a little differently. For basic operation, you want to use "Throttle" for the primary axis and "None" for secondary. X-Plane automatically reverses the axis when it detects a helicopter, so you can begin with your throttle control all the way forward on startup, then pull back to raise collective (increase pitch on the blades, with the engine governor following) to lift off. 

Note: You can assign these axes independently for different aircraft models, so you might have the twin-throttle setup for twin-engine planes and a separate setup for helicopters. Use the "Active Profile" and "Manage Profile" buttons at the bottom of the Joystick settings screen to set that up.

Note 2: Some helicopter models might need you to assign "Collective" to your throttle axis. Usually these are the ones that use plugins to take over the normal controls for use with autopilot functions. 

I hope this helps!