Learjet 20 Series Pilot Training Manual page 314

FlightSafety
international
LEARJET 20 SERIES PILOT TRAINING MANUAL
CONTROL WHEEL TRIM
SWITCH
On model 23 airplanes it is possible to trim the
ailerons with the autopilot engaged. On airplanes
with two-speed trim, any trimming action disen-
gages the autopilot completely.
FOR TRAINING PURPOSES ONLY
15-23