CSP
−
902RFM207E
−
1
Performance Data
ROTORCRAFT FLIGHT MANUAL
MD900 (902 Configuration with PW 207E)
FAA Approved
Reissue 2
Revision 5
5
−
61
EXAMPLE:
NOTE
:
This example assumes the inability to access the third level POWER CHECK
menu and therefor uses Figure 5
G
value.
Recorded from the IIDS: OAT = +30
°
C
Pressure Altitude = 2000 ft.
Utilizing the Engine Torque Chart (Ref. Figure 5-50)
the power setting for the above
noted conditions is
determined to be:
Engine torque = 71%
Utilizing the EGT and N
G
Power Check Charts (Ref. Figure 5-51 and Figure 5-52)
the
maximum values for EGT and N
G
for the above noted conditions
is determined
to be:
EGT = 791
°
C
N
G
= 92.5%
After stabilizing the torque at 71% for one minute you
record the following EGT
and N
G
readings from the IIDS:
EGT = 770
°
C
N
G
= 92%
Subtract the observed values of N
G
and EGT from the maximum
values obtained
from the charts to determine the power check
margins:
EGT = 791
°
C (from chart) minus 770
°
C (from IIDS) = 21
°
C (pass)
N
G
= 92.4% (from chart) minus 92% (from IIDS) = 0.5% (pass)
Summary of Contents for MD900 Explorer
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