Boeing 737 - Page 49

737 Operations Manual
Performance Inflight -
All Engines
737-300/CFM56-3_22K
Copyright © The Boeing Company. See title page for details.
D6-27370-400E-TBCE PI.11.7
All Engi nes
Long Range Cruise Wind-Altitude Trade
Descent
Based on .74/250 descent speed
Holding
Flaps Up
PRESSURE
ALTITUDE
(1000 FT)
CRUISE WEIGHT (1000 KG)
62 60 58 56 54 52 50 48 46 44 42 40 38 36
37 14810000000
35 952002681012131414
33 2101371217202326272930
31 134914192531353841434445
29 8 12172228333945505457596061
27 17 25 30 35 41 48 55 61 66 69 71 74 75 77
25 34 39 44 51 57 63 70 78 82 86 89 92 94 96
23 48 53 59 65 72 79 86 94 99 103 106 109 112 113
The above wind factor tables are for calculation of wind required to maintain present range capability at new
pressure altitude, i.e., break-even wind.
Method:
1. Read wind factors for present and new altitudes from table.
2. Determine difference (new altitude wind factor minus present altitude wind factor); This difference may
be negative or positive.
3. Break-even wind at new altitude is present altitude wind plus difference from step 2.
PRESSURE ALT (1000 FT)25272931333537
DISTANCE (NM) 79 86 92 98 105 111 116
TIME (MINUTES) 18192021222323
WEIGHT
(1000 KG)
PRESSURE ALTITUDE (FT)
1500 5000 10000 15000 20000 25000 30000 35000 37000
62
%N1 61.7 64.3 68.3 72.4 76.3 80.4 84.5 90.6
KIAS 247 248 250 253 255 257 256 249
FF/ENG 1430 1400 1360 1330 1310 1310 1310 1400
58
%N1 60.1 62.6 66.5 70.7 74.7 78.7 82.8 87.6 92.4
KIAS 239 240 241 244 246 248 248 243 239
FF/ENG 1360 1320 1280 1250 1230 1230 1220 1250 1360
54
%N1 58.4 60.8 64.7 68.7 73.0 77.0 81.0 85.4 88.2
KIAS 231 231 232 235 237 239 241 238 234
FF/ENG 1280 1240 1200 1170 1150 1150 1140 1150 1180
50
%N1 56.6 59.1 62.7 66.8 71.0 75.0 79.1 83.3 85.6
KIAS 224 223 223 225 227 230 232 230 228
FF/ENG 1210 1170 1130 1090 1070 1060 1050 1060 1070
46
%N1 54.8 57.1 60.6 64.6 68.8 73.0 77.1 81.2 83.4
KIAS 216 214 214 215 218 220 222 222 221
FF/ENG 1130 1100 1050 1020 990 980 970 970 980
42
%N1 53.1 55.3 58.8 62.6 66.6 70.8 74.9 79.0 81.1
KIAS 210 210 210 210 210 210 212 213 212
FF/ENG 1070 1030 990 950 920 900 890 890 890
38
%N1 51.5 53.8 57.2 60.8 64.8 69.0 72.9 76.9 79.0
KIAS 210 210 210 210 210 210 210 210 210
FF/ENG 1010 980 940 900 870 840 830 820 820
34
%N1 50.0 52.4 55.7 59.3 63.1 67.2 71.2 75.1 77.0
KIAS 210 210 210 210 210 210 210 210 210
FF/ENG 970 940 900 860 820 800 770 760 770
This table includes 5% additional fuel for holding in a racetrack pattern.
June 07, 2002