Darrell S wrote:
Not quite. You can still move the throttle(s) but when you release them the
autothrottle system (if still engaged) will return the throttle(s) to try to
achieve what you're asking of the system. That could be to obtain and
maintain a given speed or to set a power setting like T.O. Power, Climb
Power, Cruise Power, etc. Some systems have a "clamp" operation where the
throttle(s) can be moved and will stay there until an even occurs which
brings the throttle(s) out of "clamp" and they again try to maintain a speed
or a power setting.


IIRC, trying to manually move the throttles on a Gulfstream will result
in an autothrottle disconnect and associated amber CAS message.