Power Plant Limitations; Revision - MD Helicopters MD900 Flight Manual

2−9.

POWER PLANT LIMITATIONS

The pilot must monitor the IIDS during all phases of operation and
CAUTION
record and report all exceedances to maintenance as soon as
possible.
Torque limits:
Normal:
Maximum continuous:
Takeoff (5 minute):
Maximum transient over torque: 111% to 124% for 10 seconds
OEI limits:
Maximum continuous: 124%
2.5 minute: 125% to 135%
Torque greater than 135%: NOT PERMITTED
Exhaust gas temperature limits:
Normal limits:
Maximum continuous:
Takeoff (5 minutes):
Transient limits:
OEI limits:
Maximum continuous:
2.5 minute: 901°C to 970°C
Maximum transient limits: 971°C to 1000°C for 20 seconds
Overtemperature limits for starting:
Maximum 875°C for 2 seconds
711°C for 10 seconds
650°C for 45 seconds
NOTE
: Engine start should be completed within 45 seconds with EGT stabilized below
650°C.
ROTORCRAFT FLIGHT MANUAL
MD900 (902 Configuration with PW 207E)
100%
101% to 110%
850°C
851°C to 900°C
901°C to 1000°C for 20 seconds
900°C
FAA Approved
Reissue 2

Revision 4

CSP−902RFM207E−1
Limitations
2−9