737 Flight Crew Operations Manual
Performance Inflight
General
737-800WSFP1/CFM56-7B26
FAA
Category C/N Brakes
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
PI.10.30 D6-27370-866-EGP
Assumed Temperature Reduced Thrust (24K 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 12.1
100 11.3 8.5
90 11.7 8.9
80 12.5 8.0 5.5
70 11.3 8.4 5.9 5.6 4.0
60 9.7 9.2 4.8 4.7 4.4 4.2 2.6
50 7.8 7.9 5.3 3.5 3.3 3.6 3.0 2.7 1.2
40 6.4 6.0 5.5 3.7 3.2 3.7 3.0 2.8 3.0 3.7
30 4.6 4.6 4.6 4.5 4.3 4.2 4.0 4.1 4.0 3.9 3.8 3.7
20 3.1 3.1 3.1 3.0 2.9 2.9 2.8 2.7 2.7 2.6 2.6 2.5
10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.3 1.3
0 000000000000
September 15, 2016