Fuelburn 767-400?
 

The title says it all - what's a ballpark average burn to be used for a 767-400?

On what mission?

This might help, See

http://www.boeing.com/commercial/air...ps/767sec3.pdf

for more

Boeing: Commercial Airplanes - 767 - Technical Information

and the rest of the range see

Boeing: Commercial Airplanes - Products

I guess I'm looking for an average burn on long stages - what do you guys use as a figure for mental calculation? On the 737NG 5000 lbs/hr is a good figure to use...
I know the weight variation in a bigger airplane will be bigger, and therefor also the fuelburn.

Basically, I'd like to get an idea about how much more expensive it would be to operate a 76-400 than a BBJ1 in, let's say, a corporate configuration...;)

Long range mission, 88.3 kg per minute. 2.5 hour hop 88.7 kg per minute.

hope this prints...
 

Okay here goes... Planning exercise

First Line ... no explanation
CI tbc Declared MN 0.80 FL370 NW NT

Second Line: the columns are in order a) leg distance b) cumulative distance c) distance counting backwards! d) all up weight e) well, burnt I s'pose f) percentage of trip burnt g) fuel on board.

a) DISTnm b) CUMnm c) REMnm d) WTkg e) BURNTkg f) %age g) FOB kg

a) b) c) d) e) f) g)
0 0 1927 191131 0 0.00% 27982
5 5 1922 190135 996 4.67% 26986
8 13 1914 189735 1396 6.55% 26586
13 26 1901 189290 1841 8.64% 26141
14 40 1887 188660 2471 11.59% 25511
9 49 1878 188400 2731 12.81% 25251
9 58 1869 188176 2955 13.87% 25027
46 104 1823 187413 3718 17.45% 24264
2 106 1821 187313 3818 17.91% 24164
51 157 1770 186792 4339 20.36% 23643
24 181 1746 186540 4591 21.54% 23391
25 206 1721 186295 4836 22.69% 23146
152 358 1569 184706 6425 30.15% 21557
17 375 1552 184530 6601 30.97% 21381
92 467 1460 183582 7549 35.42% 20433
10 477 1450 183479 7652 35.90% 20330
25 502 1425 183222 7909 37.11% 20073
68 570 1357 182537 8594 40.32% 19388
19 589 1338 182371 8760 41.10% 19222
55 644 1283 181768 9363 43.93% 18619
23 667 1260 181532 9599 45.04% 18383
59 726 1201 180936 10195 47.84% 17787
6 732 1195 180872 10259 48.14% 17723
86 818 1109 180003 11128 52.21% 16854
33 851 1076 179673 11458 53.76% 16524
23 874 1053 179440 11691 54.86% 16291
77 951 976 178665 12466 58.49% 15516
24 975 952 178422 12709 59.63% 15273
83 1058 869 177602 13529 63.48% 14453
84 1142 785 176769 14362 67.39% 13620
92 1234 693 175858 15273 71.66% 12709
14 1248 679 175721 15410 72.31% 12572
14 1262 665 175585 15546 72.94% 12436
40 1302 625 175195 15936 74.77% 12046
71 1373 554 174514 16617 77.97% 11365
86 1459 468 173668 17463 81.94% 10519
41 1500 427 173269 17862 83.81% 10120
81 1581 346 172609 18522 86.91% 9460
12 1593 334 172539 18592 87.24% 9390
6 1599 328 172478 18653 87.52% 9329
31 1630 297 172221 18910 88.73% 9072
40 1670 257 171918 19213 90.15% 8769
18 1688 239 171806 19325 90.68% 8657
23 1711 216 171603 19528 91.63% 8454
43 1754 173 171231 19900 93.37% 8082
50 1804 123 170851 20280 95.16% 7702
45 1849 78 170671 20460 96.00% 7522
52 1901 26 170398 20733 97.28% 7249
5 1906 21 170377 20754 97.38% 7228
5 1911 16 170332 20799 97.59% 7183
6 1917 10 170253 20878 97.96% 7104
5 1922 5 170049 21082 98.92% 6900
5 1927 0 169819 21312 100.00% 6670

FF did not print so you'll have to do sums!! But the total burnt is (27982-6670) = 21312kg averaged over 4.6hrs for 4633kg/hr or 90.4nm/tonne average (that good huh!)

Oh well as an average with alll sorts of caveats I hope it helps.

Best Rgds

The "E"

Thanks guys!:ok:

I just pull out the old fuel burn table and look at it. Takes nothing but a few moments and beats the headache of trying to work numbers in your head.