MD Helicopters 369E, Руководство по летной эксплуатации вертолетов

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Limitations
CSP − E − 1 ROTORCRAFT FLIGHT MANUAL
MD 500E
(Model 369E)
Revision 16
2 − 7
FAA Approved
2 − 8. POWERPLANT LIMITATIONS ROLLS ROYCE 250 − C20R/2
Engine torque limits:
Maximum takeoff power (5 minute): 87.2 psi torque
Maximum continuous: 81.3 psi torque
Transient torque limits:
87.3 to 93.0 psi torque for 15 seconds at 103 percent N
2
.
93.1 to 97.6 psi torque for 3 seconds at 103 percent N
2
.
Turbine Outlet Temperature limits:
Maximum takeoff (5 minute): 810
°
C
Maximum for starting (lightoff): 150
°
C
Maximum continuous: 752
°
C
Transient limits:
During start and shutdown: 810
°
C and above for 10 seconds or less with
a momentary peak temperature of 927
°
C for not more than 1 second.
During power changes in flight:
810
°
C to 843
°
C for 6 seconds for aircraft with ‘‘analog only" TOT indica-
tor.
810
°
C to 899
°
C for 6 seconds for aircraft with ‘‘analog/digital" TOT indi-
cator.
Gas Producer (N
1
) speed limits:
Maximum continuous: 105%.
Minimum: ground idle speed 64%.
Transient limits:
106% for 15 seconds.
Power turbine (N
2
) speed avoid range:
Avoid steady state operations between 75% and 88%. Transition through the
speed avoid range is to be accomplished as quickly as possible.
Maximum allowable time in the speed avoid range is 1 minute.
NOTE
: Refer to Rolls − Royce CEB A − 72 − 4095.
CAUTION