TM 1-1520-240-MTF
2-80
IN-FLIGHT (CONT.)
(7) Set the AFCS switch to BOTH and
check that both MASTER CAUTION
and both AFCS OFF caution lights go
out within 20 seconds.
5. Speed Sweep — Check.
a. Increase and stabilize airspeed at 100
knots.
b. Record longitudinal stick position.
6. Speed Sweep Check.
a. Increase and stabilize airspeed at 120
knots.
(1) Record longitudinal stick position.
(2) Check jettisonable doors for security
and vibration.
7. STVA evaluation.
CAUTION
Do not operate the self-tuning absorber test
feature in flight. In-flight operation may
damage the absorber.
Stabilize airspeed at 120 knots.
a. Check rotor rpm at 100%.
b. 712 Increase rotor rpm to 101% and start
clock. 714A FADEC NR% switch —
Increase RRPM to 101% and start clock.
Absorbers should retune within 60 seconds.
c. Increase and stabilize airspeed at 140
knots.
