Major A <[EMAIL PROTECTED]> said: > Thanks Jim, things look a lot better now. I tried a flight today, from > EDDF to KDTW, which should be well in the range of a fully loaded > 747-400. I used full throttle to climb to FL290 first, then in steps > up to FL410. Throttle was taken back so as to make the airspeed > something between Mach 0.82 and 0.84 (towards the end, this worked out > at less than 80%). Even so, I didn't make it -- I had to land the bird > at CYYR with only a few minutes' worth of fuel (at full throttle) > left. > > This is all with the 747 config modified to full tank on take-off > (1.0).
You know, now that I think of it, 5 hours should probably be in reach for the 400. Something isn't right. I'm really not an FDM person. It seems as though last I knew the nose was pitched down unrealistically with AP on. Maybe there is something in the model that really has the aircraft pitched like? That would create a lot of extra drag and cut the fuel economy. On the other hand maybe the jet engine model is broken. Maybe Andy will check in at some point and shed some light. Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
