03 Landing Performance 747 400 v10

LANDING 3 - 1

PMDG 747-400 AOM DO NOT DUPLICATE Revision – 26JUL05

LANDING

TABLE OF CONTENTS

SUBJECT PAGEMINIMUM MANEUVERING AND LANDING REFERENCE SPEEDS ..................3GO-AROUND THRUST SETTINGS - N1 .............................................................4PERFORMANCE LIMIT WEIGHTS [LBS] ...........................................................5RUNWAY LIMIT WEIGHTS [LBS] .......................................................................6ACTUAL ALLOWABLE LANDING WEIGHT [LBS] (B747-400) .........................7PERFORMANCE LIMIT WEIGHTS [KGS]...........................................................8RUNWAY LIMIT WEIGHTS [KGS].......................................................................9ACTUAL ALLOWABLE LANDING WEIGHT [KGS] (B747-400).......................10RUNWAY WEIGHT LIMIT OVERVIEW (B747-400) ...........................................11AUTOBRAKE SYSTEM ISSUES (B747-400) ....................................................11LANDING SPEED TERMINOLOGY (B747-400)................................................11

3 - 2 LANDING

Revision – 26JUL05 DO NOT DUPLICATE PMDG 747-400 AOM

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LANDING 3 - 3


MINIMUM MANEUVERING AND LANDING REFERENCE SPEEDS

Landing WeightLbs. Kgs.

Flaps0

Flaps1

Flaps5

Flaps10

Flaps20

Flaps25

Flaps30

730 330 246 226 206 186 177 173 165720 325 246 226 206 186 176 172 165710 320 245 225 205 185 175 171 164700 315 243 223 202 183 173 169 162690 313 242 222 202 182 172 168 161680 310 240 220 200 180 170 166 159670 305 239 219 199 179 169 165 158660 300 238 218 198 178 168 164 157650 295 237 217 197 177 167 162 156640 290 236 216 196 176 166 161 155630 285 234 213 194 174 164 160 153620 280 233 213 193 173 163 158 152610 275 232 212 192 172 162 157 151600 270 230 211 190 171 161 156 150590 268 229 210 189 170 159 154 148580 265 228 209 188 168 158 153 147570 260 227 207 186 167 157 152 146560 255 225 205 185 165 155 150 144550 250 223 204 183 164 154 149 143540 245 222 202 182 162 152 147 141530 240 221 201 181 161 151 146 140520 235 220 200 179 160 150 145 139510 230 218 198 178 158 148 143 137500 227 215 196 176 156 146 141 135490 225 215 195 175 155 146 140 134480 220 213 193 173 153 143 138 132470 215 212 192 172 152 142 137 131460 210 211 190 170 152 142 135 130450 205 209 189 169 149 139 133 128440 200 208 188 168 148 138 132 127430 195 206 186 166 146 136 130 125420 190 205 185 165 145 135 129 124410 185 204 184 164 144 133 127 123400 180 202 182 162 142 132 125 121

Bolded speeds within the shaded areas are above the maximum structural landing weight.

All speeds are for International Standard Atmospheric conditions and may vary slightly accordingto local temperature, humidity and altimeter setting.

3 - 4 LANDING


GO-AROUND THRUST SETTINGS - N1

N1 Go-Around thrust settings are provided for crew use in the event that the automated FMCbased TO/GA system is unavailable/inoperative.

When hand flying an approach, crews are encouraged to use maximum available thrust toinitiate the Go-Around procedure. Lower thrust settings may compromise the safety of theaircraft during the critical transition from approach to go-around.

Use of the TO/GA switch, when possible, is the best method of thrust management in the eventof a Go-Around.

TempF/C

SeaLevel

2000 ft600 M

4000 ft1200M

6000 ft1800M

8000 ft2400M

10000ft3000M

12000ft3600M

13000+4000 M+

120 / 49 101.8 104.2 106.4 108.6 110.8 111.6 111.6 111.6110 / 43 101.6 104.5 106.9 109.4 111.2 111.3 111.3 111.3100 / 38 102.5 104.5 106.6 109.3 110.6 110.6 110.6 110.690 / 32 103.6 105.1 107.2 109.7 110.4 110.4 110.4 110.480 / 27 105.9 106.6 108.9 109.4 110.4 110.4 110.4 110.470 / 21 104.6 105.6 106.7 108.0 110.0 110.1 110.1 110.160 / 16 103.7 104.9 106.1 107.0 108.6 109.3 109.6 109.650 / 10 102.5 103.7 104.7 105.8 107.7 108.2 109.1 109.240 / 04 101.5 104.2 104.2 105.2 106.7 107.2 108.1 109.330 / -01 100.4 102.4 103.5 104.2 105.8 106.3 107.2 108.620 / -07 99.5 101.0 102.2 103.2 104.6 105.1 106.2 107.410 / -12 99.0 100.2 101.4 102.6 104.0 104.5 105.2 106.80 / -18 97.7 98.8 100.2 102.6 102.7 103.2 104.0 105.5

-20 / -29 95.1 96.3 98.0 98.6 100.1 100.4 102.5 103.0

LANDING 3 - 5


PERFORMANCE LIMIT WEIGHTS [Lbs](Weights listed in thousands of pounds.)

[Match airport temperature to airport pressure altitude to obtain Performance Limit Weight.]

FLAPS

25OATF / C

SeaLevel

2000Pres. Alt

4000Pres. Alt

6000Pres. Alt

8000Pres. Alt

120/49 842.0 781.6 NA NA NA110/43 875.0 835.0 773.1 NA NA100/38 875.0 875.0 819.2 759.1 701.290/32 875.0 875.0 875.0 835.0 787.180/27 875.0 875.0 875.0 835.6 787.570/21 875.0 875.0 875.0 836.1 782.760/16 875.0 875.0 875.0 836.5 788.250/10 875.0 875.0 875.0 836.9 788.640/4 875.0 875.0 836.9 784.9 736.530/-1 875.0 875.0 837.4 785.3 736.820/-7 875.0 875.0 837.6 786.0 737.2

10/-12 875.0 875.0 838.0 785.5 737.60/-18 875.0 875.0 838.5 786.2 738.1

-20/-29 875.0 875.0 839.1 786.6 738.9

FLAPS

30OATF/C

SeaLevel

2000Pres. Alt

4000Pres. Alt

6000Pres. Alt

8000Pres. Alt

120/49 802.6 747.3 NA NA NA110/43 856.6 797.0 738.7 NA NA100/38 875.0 842.6 781.8 725.2 672.290/32 875.0 875.0 817.5 758.0 712.680/27 875.0 875.0 843.7 781.8 724.170/21 875.0 875.0 848.1 798.0 741.360/16 875.0 875.0 848.3 798.2 752.550/10 875.0 875.0 848.5 798.4 752.740/4 875.0 838.0 787.7 737.4 691.930/-1 875.0 838.3 787.9 737.6 692.120/-7 875.0 838.5 788.2 737.8 692.6

10/-12 875.0 838.5 788.6 738.3 693.00/-18 875.0 838.7 788.8 738.5 693.2

-20/-29 875.0 839.1 789.0 739.2 693.4

3 - 6 LANDING


RUNWAY LIMIT WEIGHTS [Lbs](Weights in thousands of pounds.)

[Match runway length to airport pressure altitude to obtain Runway Limit Weight.]

FLAPS

25Press.

Alt5000ft

Runway6000ft

Runway7000ft

Runway8000ft

Runway9000ft

Runway10000ftRunway

10000 438.4 568.3 689.3 795.3 865.2 875.09000 465.0 590.4 719.6 811.3 875.0 875.08000 487.1 613.8 742.2 827.3 875.0 875.07000 504.2 634.6 765.4 842.0 875.0 875.06000 520.8 655.4 781.6 857.2 875.0 875.05000 537.7 697.6 795.6 872.6 875.0 875.04000 554.9 697.6 810.3 875.0 875.0 875.03000 572.7 719.3 825.0 875.0 875.0 875.02000 590.0 740.9 839.6 875.0 875.0 875.01000 609.0 841.8 854.4 875.0 875.0 875.0S.L. 627.6 773.7 869.3 875.0 875.0 875.0

FLAPS

30Press.

Alt5000ft

Runway6000ft

Runway7000ft

Runway8000ft

Runway10000ftRunway

10000 497.9 615.4 737.0 796.9 875.09000 512.6 637.4 748.5 808.3 875.08000 529.4 659.3 760.4 819.0 875.07000 545.9 679.7 771.5 830.6 875.06000 563.7 700.2 782.5 841.7 875.05000 581.2 721.0 793.6 853.6 875.04000 598.9 737.6 805.0 865.8 875.03000 617.1 748.6 816.1 875.0 875.02000 635.3 759.5 827.1 875.0 875.01000 653.6 770.4 839.1 875.0 875.0S.L. 528.9 781.0 850.5 875.0 875.0

LANDING 3 - 7


ACTUAL ALLOWABLE LANDING WEIGHT [Lbs] (B747-400)

Use: Obtain both Runway and Performance Limit Weights from tables on 3-5 and 3-6. Enterweights (in XXX.X format) into appropriate columns below. Add or subtract from weights as

described in the sub-boxes of each associated column. When reaching the bottom, compare thefinal Performance Limit Weight and Runway Limit Weights. Use the highest weight as the

maximum landing weight for the given runway. BE SURE NOT TO EXCEED 630.0 (630,000lbsMAX GROSS LANDING WEIGHT.

3 - 8 LANDING


PERFORMANCE LIMIT WEIGHTS [Kgs](Weights listed in thousands of Kgs.)

[Match airport temperature to airport pressure altitude to obtain Performance Limit Weight.]

FLAPS

25OATF / C

SeaLevel

600MPres. Alt

1200MPres. Alt

1800MPres. Alt

2400MPres. Alt

120/49 382.0 354.5 NA NA NA110/43 397.0 378.8 350.7 NA NA100/38 397.0 397.0 371.6 344.3 318.190/32 397.0 397.0 397.0 378.8 357.080/27 397.0 397.0 397.0 379 357.070/21 397.0 397.0 397.0 379.3 355.060/16 397.0 397.0 397.0 379.4 357.550/10 397.0 397.0 397.0 379.6 357.740/4 397.0 397.0 379.6 356.1 334.130/-1 397.0 397.0 379.8 356.2 334.220/-7 397.0 397.0 379.9 356.5 334.4

10/-12 397.0 397.0 380.1 356.3 334.60/-18 397.0 397.0 380.3 356.6 334.8

-20/-29 397.0 397.0 380.6 356.8 335.2

FLAPS

30OATF/C

SeaLevel

600MPres. Alt

1200MPres. Alt

18000MPres. Alt

2400MPres. Alt

120/49 364.1 339.0 NA NA NA110/43 388.6 361.5 335.1 NA NA100/38 397.0 382.2 354.6 328.9 304.190/32 397.0 397.0 370.1 343.8 323.280/27 397.0 397.0 382.7 354.6 328.570/21 397.0 397.0 384.7 361.2 336.360/16 397.0 397.0 384.8 362 341.350/10 397.0 397.0 384.8 361.9 341.440/4 397.0 380.1 357.3 334.5 313.830/-1 397.0 380.2 357.4 334.6 313.920/-7 397.0 380.3 357.5 334.6 314.6

10/-12 397.0 380.3 357.7 334.9 314.30/-18 397.0 380.4 357.8 335.0 314.4

-20/-29 397.0 380.6 357.9 335.3 314.5

LANDING 3 - 9


RUNWAY LIMIT WEIGHTS [Kgs](Weights in thousands of Kgs.)

[Match runway length to airport pressure altitude to obtain Runway Limit Weight.]

FLAPS

25Press.

Alt1500M

Runway1800M

Runway2100M

Runway2400M

Runway2700M

Runway3000M

Runway3000M 198.9 257.8 312.6 360.7 392.5 397.02700M 210.9 267.8 326.4 368.0 397.0 397.02400M 220.9 278.4 336.7 375.3 397.0 397.02100M 228.7 287.9 346.8 381.9 397.0 397.01800M 236.2 297.3 354.5 388.8 397.0 397.01500M 243.9 316.4 360.9 395.8 397.0 397.01200M 251.7 316.4 367.6 397.0 397.0 397.0900M 259.8 326.3 374.2 397.0 397.0 397.0600M 267.6 336.1 380.8 397.0 397.0 397.0300M 276.2 350.8 387.6 397.0 397.0 397.0S.L. 284.7 381.7 394.3 397.0 397.0 397.0

FLAPS

30Press.

Alt1500M

Runway1800M

Runway2100M

Runway2400M

Runway3000M

Runway3000M 225.8 279.1 334.3 361.5 397.02700M 232.6 289.1 339.5 366.6 397.02400M 240.1 299.1 340.9 371.5 397.02100M 247.6 308.3 349.9 376.8 397.01800M 255.7 317.6 354.9 381.8 397.01500M 263.6 327.1 359.9 387.2 397.01200M 271.7 334.6 365.2 392.8 397.0900M 279.9 339.6 370.2 397.0 397.0600M 288.2 344.5 375.2 397.0 397.0300M 296.5 349.5 380.6 397.0 397.0S.L. 330.6 354.3 385.8 397.0 397.0

3 - 10 LANDING


ACTUAL ALLOWABLE LANDING WEIGHT [Kgs] (B747-400)

Use: Obtain both Runway and Performance Limit Weights from tables on 3-5 and 3-6. Enterweights (in XXX.X format) into appropriate columns below. Add or subtract from weights as

described in the sub-boxes of each associated column. When reaching the bottom, compare thefinal Performance Limit Weight and Runway Limit Weights. Use the highest weight as the

maximum landing weight for the given runway. BE SURE NOT TO EXCEED 285.8(285,800Kgs) MAX GROSS LANDING WEIGHT.

LANDING 3 - 11


RUNWAY WEIGHT LIMIT OVERVIEW (B747-400)

The Landing Runway Limit Tables provided here are calculated based on a normal approach,flown at the specified flap setting and VREF speed with a 50 foot (15 meter) threshold crossing,no wind, no spoilers, no reverse thrust, minimal aircraft float, and maximum braking. Crewsshould keep in mind that these figures were acquired using a new aircraft with new brakes andtires, so actual performance of an in-service aircraft may vary slightly. Runway Limit Weights inexcess of the known structural weight limit are included for emergency use should a forcedlanding in excess of the Structural Limit Weight be required. Inclusion of these figures doesnot imply permission to land the aircraft above the Structural Limit Weight, and crews areencouraged to land the aircraft in such a condition only as a matter of last recourse.

If required to land the aircraft while still above the Structural Limit Weight, crews shouldanticipate a hot-brake condition, and ensure that adequate ground safety precautions are takenprior to arrival.

AUTOBRAKE SYSTEM ISSUES (B747-400)

Unlike a simple anti-skid system, the autobrake system used aboard the 747-400 aircraft isdesigned to modulate brake pressure to all sixteen main gear brake systems in order to providethe aircraft with a specific rate of deceleration. This rate of deceleration will be provided andmaintained regardless of the use of spoilers or reverse thrust. The rate of deceleration isprovided according to the settings below:

Setting 1: 4ft [1.2 M]/Second/Second Setting 4: 7.5ft [2.3 M]/Second/SecondSetting 2: 5ft [1.5 M]/Second/Second MAX AUTO: 11ft [3.4 M]/Second/SecondSetting 3: 6ft [1.8 M]/Second/Second

When used, spoilers and reverse thrust will reduce the total energy that would otherwise beabsorbed by the brake systems. By reducing the amount of energy absorbed into the brakepads, spoilers and reverse thrust reduce the overall wear of the brake systems and aircraft tires.As such, crews are encouraged to use reverse thrust commensurate with safety and control ofthe aircraft on all landings.

LANDING SPEED TERMINOLOGY (B747-400)

__REF: The calculated reference speed for a specific flap configuration. (e.g. 30REF for a flaps30 approach.) This speed is used to calculate the actual target speeds at which the aircraft willbe flown. 30REF, 25REF speeds etc can be found on the Landing Speeds Table (3-3).

Target Speed: The speed at which the approach should be flown. Target speed should equal25REF+5 or 30REF+5 knots. To this figure, add 1/2 steady wind plus the full gust factor (up to amaximum of 20 knots.)Threshold Speed: Speed crossing the threshold. Equal to 25REF or 30REF plus the full gustfactor, up to a maximum of 20kts.

Autoland Target Speeds: The speed at which the Autoland/Autothrottle approach is flown.Equal to 25REF+5 or 30REF + 5 knots, regardless of wind conditions. The Autothrottle correctsfor normal wind gust conditions through the airspeed and acceleration sensing system. Whenperforming hand- flown approaches with the autothrottle activated, apply normal wind and justcorrections.

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03 Landing Performance 747 400 v10

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