TM 55-1510-215-MTF
*D. Speed-Power Check.
(1)
Altimeters- Set at 29.92.
(2)
Pressure altitude - 8000 feet.
(3)
Propellers - Set 1900 RPM.
(4)
Power levers- Set 800 ft-lbs.
(5)
Allow speed and systems to stabilize, then record the
following:
a.
FAT (°C).
b.
KIAS.
c.
ITT (°C).
d.
NI (%).
e.
Fuel flow (lb/hr).
f.
Subtract 4°C from FAT to obtain true FAT (TFAT).
g.
Compare with speed power results below (aircraft at
8000 feet pressure altitude):
IAS (Kts)
159
158
156
155
153
152
151
TFAT (°C)
-30
-20
-10
0
10
20
30
NOTE
Speed-power check must be performed with the
inertial separator in the clear air (retract) position.
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