Hello

Im not usally in this area but saw the Eagle Tree thread so here go's
I was one of the Lucky Beta testers and it's a great unit.

I have tested it in 2D = wing leveling mode in take off, flying, recovery, and landing.

I have tested it in 3D = stabilzaton just keep the plane from getting bounced around too much / being unstable.
3D = Direct rate, like a 3 axis gyro that turns off when you move the sticks for better response
3D = Heading hold, w/direct rate a 3 axid gyro that flys like an arrow as long as your plane can hold that line.
For example if you roll right into knife edge it will attempt to hold it to the limits of the servos, setup, and plane. (You can turn auto coordination on and off too)

For twins I want to test engine out, but do not have a plane that I can do it with at this time. I did not see anyone else in the beta that tried that sorry.
2D uses bank angle for heading control, if you turn off turn coordination I belieive the Rudder works as a Yaw damper. Then that might work.... test it on something cheap : )

http://www.youtube.com/user/aero1965...e=results_main

Here is my YouTube Channel with some of the test flights with my turbine MB339 and F4D skyray.