S-TEC 60-2 requires re-trim after altitude hold?

Roger Halstead ) wrote:

Is the speed exactly the same as it was prior to the climb, or is the
power setting the same?

No, the speed is definitely not the same. The aircraft climbs at 110 kts
indicated, then cruises at the top of the green arc with wide open throttle
(this is a turbonormalized engine), which is about 170 kts indicated.

If you have climbed and the bo is going faster it will require the
trim be reset.

I was spoiled by the Bendix/King KAP140, which had an altitude select and
capture that used the electric trim to maintain level flight, no matter if
the aircraft were accelerating or decelerating.

If I disconnected the AP (resulting in a loud disconnect tone), the
aircraft was in perfect elevator trim for the attitude and speed.

Of course, the B/K AP did not have GPS steer, which is a nice feature of
the 60-2.


--
Peter












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