When I use the autopilot the elevator flutters when viewed with the external view. Inside the A/C there is a constant porpoising untilthe autopilot is shut down. Is there a fix for this or am I doing something wrong?Red

Adjust the elevator sensitivity on the Sperry, then make sure the aircraft is properly in trim before you start the a/p.Hope this helps.Allcott

Or don't use the autopilot!CheersTimhttp://www.fssupport.com/maam_sim/maamsim_logo.gif

I justify it because my co-pilot is a lazy so-and-so and never seems to do what I tell him x(And every time I look over there he's not in his seat, where he should be.:(I've got backache from reaching across to the cowl controls. And the PIC operating the gear lever? Whatever were they thinking?}(Allcott

Thanks for the tip,when trimed properly it works fine.I don't fly with the autopilot all the time but it's nice to know things work.Red

I'm currently beta testing another aircraft, and the fluttering appears when the yaw dampers engaged. If you look at the default aircraft, occasionally they exhibit the same fluttering of rudder or elevator. It appears to be a built-in extra that came with FS9.