MD Helicopters 369E, Руководство по летной эксплуатации вертолетов

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CSP − E − 1
ROTORCRAFT FLIGHT MANUAL
Performance Data
MD 500E
(Model 369E)
Revision 14 5 − 24
FAA Approved
Example:
WANTED Check engine performance
DATA OBTAINED DURING FLIGHT:
Torque = 87.2 psig
TOT = 780
°
C
PA = 1000 feet
OAT = 20
°
C
METHOD
1. Enter the bottom right of the chart at 87.2 psig torque. Move up
along the 87.2psig torque line to the 1000 foot pressure altitude curve,
move left to the 20
°
C OAT curve; now move down and read specification
TOT of 790
°
C.
2. Compare the specification TOT of 790
°
C with the TOT observed dur-
ing flight (780
°
C for this example). The TOT that wasobserved is lower
than the specification TOT. If the TOT observed had been higher than
the specification TOT read from the chart, some power deterioration will
have occurred and the performance data given in this manual may not
be obtained.
3. When trend check procedures indicate engine power deterioration, re-
fer to the Rolls Royce Operation and Maintenance Manual for corrective
action.
NOTE
: Data obtained during engine engine operation with the bleed valve not fully
closed will result in incorrect comparisons of actual versus specification TOT.
If a mist eliminator is installed, subtract 5
°
C from the TOT read during flight
before comparing it with the specification TOT.
4. Actual engine horsepower may be obtained by entering the bottom of
the chart at the observed engine torque pressure, moving up along the
torque line to the Sea Level Pressure Altitude curve, and then moving
right to read the engine shaft horsepower.