simulation rate problem

[michaleen]

Hi There,
Does anyone know how a fix a problem with the aircraft at high altitude, with autopilot engaged, in the cruise and simulation rate at 8 x speed or above, porpoising up and down (plus or minus 500feet) Thanks.

[B-Valvs]

The autopilot probably can't keep up. Any tiny change it makes will equate to a large motion at that acceleration. Just a guess, but there is probably no fix. Maybe someone else can confirm that.

8-)