G'day 411A,
Give up? Vous? Well to keep you occupied...
I'll give you two routes and some traffic.
B744 no 1 flies LAX-J9/J107-NORRA-J107-VBI-SCAJ-JELCO-62/60-62/40-59/20-56/10-UN561-BEL-UB3-WAL-B3-HON-ATS-EGLL. A ball park of wind/delays etc is that your spread of journey time is 9.75-10.25hrs. Make it the latter.
B744 no 2 flies JFK-MERIT-HFD-PUT-WITCH-ALLEX-DCT YQX-KOBEV-50/50-52/40-53/30-53/20-5315-UG1/G1-CPT-ATS-EGLL. A ball park of wind/delays etc is that your spread of journey time is 9.75-10.25hrs. Make it the latter.
Both LAX and JFK aircraft roll at 380 tonnes and the two part question is as follows. a) How much fuel would you put in at the start for each aircraft and how much do you expect to have on arrival? b) nothing else changes except that the flight is accomplished from start to finish on three engines with the wind (and no delays) computed from the aforementioned 4-engine journey times planned at M0.86 cruise. To which level would you have to descend in ISA
conditions to completely exhaust fuel by LHR?