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kmanning

Assumed Temperatures from Jon

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Try These for EGLL should work for any airport with a similar runway length. regards Jon ELEVATION 83 FT LHR *** FLAPS 20 *** AIR COND ON ANTI-ICE OFF LONDON/HEATHROW 747-400 80C2B1F DATED 01-MAY-2005 *A* INDICATES OAT OUTSIDE ENVIRONMENTAL ENVELOPE MAX BRAKE RELEASE WT-KG, LIMIT CODE AND TAKEOFF SPEEDS FOR ZERO WIND TAKEOFF OAT CLIMB ** RWY 09L ** ** RWY 09R ** N1 DEG C LIMIT WEIGHT V1 VR V2 WEIGHT V1 VR V2 0.0 66A 317500 331200* 147 155 163 319600* 149 155 163 0.0 64A 321300 334600* 148 156 164 323000* 150 156 164 0.0 62A 325300 338000* 149 157 165 326400* 150 157 165 0.0 60A 329300 341400* 150 158 166 329800* 151 158 166 0.0 58A 333700 344900* 151 159 167 333200* 152 159 167 0.0 56A 338300 348300* 150 160 168 336700* 151 160 168 103.0 54 344200 352500F 151 162 170 341200* 151 161 169 103.8 52 354800 359600F 154 164 172 348900* 153 162 171 104.6 50 365800 367500F 154 167 175 357000* 152 164 173 105.2 48 375000 374400F 154 169 177 363700* 152 166 175 105.4 46 381800 379300F 155 170 178 368400* 153 167 176 105.7 44 388200 384100F 156 170 179 373000* 154 167 177 106.0 42 394600 390300F 157 171 180 377600* 154 168 178 106.3 40 400900 397100F 155 171 180 381900* 153 169 179 106.5 38 407200 401700F 156 172 181 386500* 154 170 180 106.8 36 413900 406200F 155 171 181 393900* 154 170 180 107.0 34 420900 410800F 155 171 181 399400* 155 171 181 107.3 32 427700 415400F 154 171 181 403900* 155 171 181 107.0 30 427700 416400F 154 171 181 404900* 155 171 181 106.6 28 427700 417400F 154 171 181 405900* 155 171 181 106.3 26 427700 418400F 154 171 181 406900* 155 171 181 105.9 24 427700 419500F 154 171 181 408000* 155 171 181 105.6 22 427700 420500F 154 171 181 409000* 155 171 181 105.2 20 427700 421600F 154 171 181 410100* 155 171 181 104.9 18 427700 422600F 154 171 181 411100* 155 171 181 104.5 16 427700 423700F 154 171 181 412100* 155 171 181 104.1 14 427700 424700F 154 171 181 413100* 155 171 181 103.8 12 427700 425800F 154 171 181 414200* 155 171 181 103.4 10 427700 426900F 154 171 181 415200* 155 171 181 103.1 8 427700 428100F 154 171 181 416300* 155 171 181 102.7 6 427700 429200F 154 171 181 417300* 155 171 181 102.3 4 427700 430400F 154 171 181 418300* 155 171 181 102.0 2 427700 431500F 154 171 181 419200* 155 171 181 101.6 0 427700 432600F 154 171 181 420200* 155 171 181 ADD KG/KT HEADWIND 330 430 SUB KG/KT TAILWIND 2740 2790 MIN FLAP RET. HT-FT 1500 1500 RUNWAY-FT 12802 12000 SLOPE (GO/STOP)-PCT 0.00/ 0.00 0.01/ 0.01 CLEARWAY/STOPWAY-FT 0/ 0 0/ 0 LINE-UP (GO/STOP)-FT 75.7/154.7 75.7/154.7 LOW QNH -KG/mBar 437 618 609 HIGH QNH +KG/mBar 357 508 476 MAX BRAKE RELEASE WT MUST NOT EXCEED MAX CERT TAKEOFF WT OF 377842 KG LIMIT CODE IS F=FIELD, T=TIRE SPEED, B=BRAKE ENERGY, V=VMCG *=OBSTACLE/LEVEL-OFF, W=TAILWIND TAKEOFF NOT ALLOWED ENG-OUT PROCEDURES: 09L NONE 09R NONEHi Jon,I want to be sure I'm correct on these weights. I assumed that these weights are in kilograms and do I use the formula 2.2046 to convert these figures to pounds? There's a british unit that uses kilos or kilograms and the British Tonnes. So I assume that if an aircraft weighs 360 tonnes, this would be 360,000 kilos or kilograms, and I would multiply 360,000 by 2.2046 to get this in pounds. I assume the first colume is the climb limit and the second colume is the runway weight limit. Oh, by the way, if the climb limit weight is much less than 317500 and the runway limit is much less than 331200, do you use the same assumed temperature at the left colume, which is 66 and enter this into the FMC? Most of the time, I make short distance flights, say around 600 to 800 miles, and my GTOW is usually around 620,000lbs or 281,230 kilograms or 281.23 tonnes. Also, why is the N1 0.0 in the first 6 lines? I also noticed there's an F after the weight limits. What does the F mean? Thanks Jon for posting this at the old website and thank you Michael for pointing me to the website. Ken.

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> I assumed that>these weights are in kilograms and do I use the formula 2.2046>to convert these figures to pounds?Yes, please notice all the units are clearly visible in the table.>I assume the first colume is the>climb limit and the second colume is the runway weight limit.No, the reverse is true. Go to PMDG's wiki-pedia and the assumed temperature takeoff is explained there, with an example. I put all the tables there.>What does the F>mean? Again - all the symbology is in the table, look at it more carefully. "F" means field limited.>should work for any airport with a similar runway length.Climb-limited portion is very runway (terrain/obstacle)-specific so I would not rely on 9L runway as a representative case. As you can see there are no meaningful climb-limits for the Hongkong case.Michael J.http://www.precisionmanuals.com/images/for...argo_hauler.gifhttp://sales.hifisim.com/pub-download/asv6-banner-beta.jpg


Michael J.

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