STUDENT GUIDE T-39N/G NATOPS
UNIT FIVE: FLIGHT CONTROLS
REFERENCE: T-39 NATOPS MANUAL
Locate and operate T-39N/G aircraft systems, given a mission in a T-39 in accordance
A.1.6 Recall the basic description, related and operating limitations of the T-39N/G flight
NATOPS FIVE: FLIGHT CONTROLS
A. Mechanical elevators, ailerons, rudder.
1. Gustlock - locks the elevators, ailerons, and rudder. Will also prevent throttle
advancement beyond idle.
1. Pitch (horizontal stabilizer), roll (tab on left aileron), yaw (rudder tab).
2. Controlled by 3-position switch below pilot instrument panel:
a. NORM: 5-position switch on pilot/co-pilot yoke, controls NORMAL pitch/roll
trim, switch on center pedestal controls rudder trim.
No trim available.
Trim using alternate trim switches in front of pilot's right knee; used for
runaway trim condition or if normal system fails.
3. Trim indicators on center instrument panel. NORMAL T/O setting: 0 (aileron), 4 UP
(elevator), 0 (rudder).
4. Autopilot will trim for roll or yaw with switch in NORM, ALT, or OFF. Can only
trim in pitch if NORM (ALT HOLD).
5. A/P TRIM FAIL light ON if trim attempted with autopilot coupled.
1. Electrically controlled and actuated (two actuators).
2. Flaps interconnected by a flexible shaft.
FLIGHT CONTROLS 5-1