Re: [Flightgear-devel] 747-400 cruise information

2003-03-10 Thread David Megginson
Andy Ross writes: > > From looking at the code > > Bless you, my brother. :) I promise I'll come back eventually. You'll > probably want to check those notes into the YASim README file too, > while you're at it. Already done. It could use more TLC, though, if you ever have a chance. Al

Re: [Flightgear-devel] 747-400 cruise information

2003-03-10 Thread Andy Ross
David Megginson wrote: > From looking at the code Bless you, my brother. :) I promise I'll come back eventually. You'll probably want to check those notes into the YASim README file too, while you're at it. > I've discovered that YASim assumes a thrust-specific fuel > consumption of 0.8 by default

re: [Flightgear-devel] 747-400 cruise information

2003-03-09 Thread David Megginson
David Culp writes: > I asked a 747-400 pilot what was the fuel flow per engine at > cruise. He said about 6000 lb-per-hour. Assuming a TSFC of 0.5 > (I've seen 0.318 and 0.348 for the PW4060, but I don't trust these > numbers) that would mean each engine is developing 12000 pounds of > thru

Re: [Flightgear-devel] 747-400 cruise information

2003-03-08 Thread Erik Hofman
Erik Hofman wrote: You can find the numbers here: http://www.bh.com/companions/034074152X/appendices/data-b/table-2/default.htm Oh, and by the way, here's the aircraft info: http://www.bh.com/companions/034074152X/appendices/data-a/table-3/table.htm Erik __

Re: [Flightgear-devel] 747-400 cruise information

2003-03-08 Thread Erik Hofman
David Culp wrote: I asked a 747-400 pilot what was the fuel flow per engine at cruise. He said about 6000 lb-per-hour. Assuming a TSFC of 0.5 (I've seen 0.318 and 0.348 for the PW4060, but I don't trust these numbers) that would mean each engine is developing 12000 pounds of thrust. Therefore

Re: [Flightgear-devel] 747-400 cruise information

2003-03-08 Thread Major A
> I asked a 747-400 pilot what was the fuel flow per engine at cruise. He said > about 6000 lb-per-hour. Assuming a TSFC of 0.5 (I've seen 0.318 and 0.348 > for the PW4060, but I don't trust these numbers) that would mean each engine > is developing 12000 pounds of thrust. Therefore the tota

[Flightgear-devel] 747-400 cruise information

2003-03-08 Thread David Culp
I asked a 747-400 pilot what was the fuel flow per engine at cruise. He said about 6000 lb-per-hour. Assuming a TSFC of 0.5 (I've seen 0.318 and 0.348 for the PW4060, but I don't trust these numbers) that would mean each engine is developing 12000 pounds of thrust. Therefore the total drag on