737 Flight Crew Operations Manual
Performance Inflight
General
737-800WSFP1/CFM56-7B26
FAA
Category C/N Brakes
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PI.10.44 D6-27370-866-EGP
Assumed Temperature Reduced Thrust (22K Derate)
%N1 Adjustment for Temperature Difference (Table 3 of 3)
1. Determine Maximum Assumed Temperature allowed from Table 1.
2. Find Maximum %N1 from Table 2 using the desired assumed temperature (no greater than
temperature from Table 1).
3. Use the difference between assumed temperature and OAT to determine the %N1 adjustment
from Table 3.
4. Subtract %N1 adjustment from Maximum %N1 in Table 2.
ASSUMED
TEMP MINUS
OAT (°C)
OUTSIDE AIR TEMPERATURE (°C)
-40 -20 0 5 10 15 20 25 30 35 40 45 50 55
110 11.6
100 10.3 7.9
90 10.8 8.4
80 12.2 7.1 5.0
70 11.0 7.6 5.4 5.2 3.5
60 9.6 9.0 4.1 4.0 3.9 3.8 2.1
50 8.0 7.7 4.5 2.8 2.6 2.7 2.6 2.4 0.8
40 6.2 5.9 4.7 3.0 2.6 2.7 2.8 2.6 2.5 2.9
30 4.7 4.6 4.5 4.4 4.2 4.1 4.0 4.0 3.9 3.8 3.7 3.6
20 3.1 3.0 3.0 3.0 2.9 2.8 2.7 2.7 2.6 2.6 2.5 2.4
10 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.3 1.3 1.3
0 000000000000
September 15, 2016
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