TM 55-1510-219-MTF
*E. ENGINE ACCEPTANCE AT MAXIMUM CRUISE POWER.
NOTE
The engine acceptance at maximum
cruise power check needs to be
performed only if the TGT observed
during the speed check at maximum
cruise power exceeds 730°C.
1.
Record the following:
a.
*Engine serial number.
b.
*Engine hours since new.
c.
*Engine hours since overhaul.
2.
Altitude - Establish level flight at 25,000 feet pressure altitude.
3.
Propeller levers - Set 1900 RPM.
4.
Adjust the opposite engine to maintain 175 KIAS.
5.
Free air temperature - Record.
6.
Set engine torque as specified by the maximum cruise
speed/engine acceptance chart (figure 6) for the recorded
indicated free air temperature, on the engine to be tested.
7. Allow conditions to stabilize for one minute then record the
following for each engine being tested:
a.
*Airspeed
b.
*Pressure altitude
c.
*Free air temperature
d.
*Propeller RPM
e.
*Torque
f.
*N1
g.
*TGT
4-6
