Obstacle height must be calculated from lowest point of the runway to conservatively account for runway slope.
OAT Adjustments
OAT (°C) REFERENCE OBSTACLE LIMIT WEIGHT (1000 KG)
40 50 60 70 80 90
30 & BELOW 32 34 0 -0.5 -1.0 0 -0.7 -1.4 0 -0.9 -1.7 0 -1.1 -2.1 0 -1.2 -2.5 0 -1.4 -2.8
36 38 40 -1.6 -2.1 -2.7 -2.1 -2.8 -3.6 -2.6 -3.5 -4.5 -3.2 -4.2 -5.4 -3.7 -4.9 -6.3 -4.2 -5.6 -7.1
42 44 46 -3.3 -3.8 -4.4 -4.3 -5.1 -5.8 -5.4 -6.3 -7.2 -6.5 -7.6 -8.6 -7.6 -8.9 -10.0 -8.7 -10.1 -11.5
48 50 -4.9 -5.5 -6.5 -7.2 -8.1 -8.9 -9.6 -10.7 -11.2 -12.4 -12.8 -14.1
Pressure Altitude Adjustments
ALT (FT) OAT ADJUSTED OBSTACLE LIMIT WEIGHT (1000 KG)
40 50 60 70 80 90
S.L & BELOW 1000 2000 3000 0 -1.6 -2.9 -4.2 0 -2.0 -3.7 -5.3 0 -2.3 -4.4 -6.5 0 -2.7 -5.2 -7.6 0 -3.0 -5.9 -8.7 0 -3.4 -6.7 -9.8
Copyright . The Boeing Company. See title page for details.
September 27, 2004 PD.50.7
Performance Dispatch
737-800/CFM56-7B27 Takeoff
FAA Category C Brakes
737 Flight Crew Operations Manual
Takeoff Obstacle Limit Weight Flaps 5 Sea Level 30°C & Below, Zero Wind Based on engine bleed for packs on and anti-ice off Wind Adjustments
WIND (KTS) OAT & ALT ADJUSTED OBSTACLE LIMIT WEIGHT (1000 KG)
40 50 60 70 80 90
15 TW 10 TW 5 TW -5.5 -3.7 -1.8 -6.0 -4.0 -2.0 -6.4 -4.3 -2.1 -6.9 -4.6 -2.3 -7.4 -4.9 -2.5 -7.8 -5.2 -2.6
0 10 HW 20 HW 0 1.3 2.6 0 1.2 2.3 0 1.0 2.0 0 0.9 1.7 0 0.7 1.4 0 0.6 1.1
30 HW 40 HW 4.0 5.3 3.5 4.7 3.1 4.1 2.6 3.5 2.1 2.9 1.7 2.3
With engine bleed for packs off, increase weight by 550 kg.
With engine anti-ice on, decrease weight by 250 kg.
With engine and wing anti-ice on, decrease weight by 1500 kg (optional system).
Copyright . The Boeing Company. See title page for details.
737-800/CFM56-7B27 FAA Category C Brakes 737 Flight Crew Operations Manual
Long Range Cruise Maximum Operating Altitude Max Cruise Thrust ISA + 10°C and Below
WEIGHT (1000 KG) OPTIMUM ALT (FT) TAT (°C) MARGIN TO INITIAL BUFFET 'G' (BANK ANGLE)
1.20 (33°) 1.25 (36°) 1.30 (39°) 1.40 (44°) 1.50 (48°)
85 80 75 30300 31600 33000 -5 -8 -11 32800* 34400* 35900* 32800* 34400* 35900* 32800* 34400* 35900* 32100 33400 34800 30700 32000 33400
70 65 60 34500 36000 37700 -15 -18 -18 37300* 38700* 40200* 37300* 38700* 40200* 37300* 38700* 40200* 36200 37800 39400 34900 36400 38100
55 50 45 40 39500 41000 41000 41000 -18 -18 -18 -18 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 41000 39900 41000 41000 41000
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