Originally Posted by
gearlever
- degrees
- units
- % MAC
Where does a 737 jock read "degrees" of the STAB ?
That is a 737 colloquialism, using ’degrees’ in the generic sense - eveyone says ‘degrees’ but we mean ‘units’. As you say, they are not real degrees - you would have to look on the trim-sheet to see the conversion between MAC and trim, as it is not linear.
And regards rhe STS, people here saying it is controlled by speed. It is a bit more complex than that, as the inputs to the STS are:
Stab position.
Thrust lever position.
Airspeed.
Vertical speed.
Time after take-off (more than 10 seconds)
Time after manual trim (more than 5 seconds)
N1 more than 60%.
No autopilot.
Elevator trim requirements
Silver.