Have spent a couple days trying to resolve an issue and I wanted to document it hereto save anyone else the same trouble.I followed the notes on adapting the L-1011 to FSX here:http://www.flightsimulatorguide.com/review...ls.php?file=185All seemed to work at first glance, however once I flew it some distance I noticedthat the fuel was only being drawn from one tank, and once it emptied even withthe other full the engines all shut down. First I thought maybe it would be fixed by the service pack or update, but installedthem both and nope, had no effect. Secondly I tried hacking the cfg thinking maybethat would help, also to no avail.Finally since the only FS9 I have was on a disk with Vista rather than Win 7 I happento try it with FSX there, its a seperate copy I have that does NOT have Acceleration,only SP 1 and 2, and LOW and BEHOLD, it works fine there.Another funny thing I found, the default 747 drained the fuel tanks in the same brokenway, woulda expected someone to notice that one, hmmm.If anyone happens to know how to fix the problem on Accel. I'd be grateful!!Cheers,

Well, after getting no help and spending days thinking and experimenting with this I actually figuredit out, its amazing how something so trivial can cause such problems. This fuel tank problem alsohappened on a CLS 747, and many of the default planes.Turns out it only was indirectly due to Acceleration, or so I assume, the problem was that thedefault flight, in my case a Cessna 172, had its fuel selector set to the left tank, can you BELIEVEthat :) Now, I know I did not dink with it, so I am not sure if its changed in Acceleration or what,but it was set to the LEFT tank rather than BOTH, I changed it to BOTH, resaved the default flightand that did it.My sense of great satisfaction in figuring it out was rather offset by my fury at the moron that designedthe thing to work this way :)Well, hope this saves someone else some frustration in any case.

Well, after getting no help and spending days thinking and experimenting with this I actually figuredit out, its amazing how something so trivial can cause such problems. This fuel tank problem alsohappened on a CLS 747, and many of the default planes.Turns out it only was indirectly due to Acceleration, or so I assume, the problem was that thedefault flight, in my case a Cessna 172, had its fuel selector set to the left tank, can you BELIEVEthat :) Now, I know I did not dink with it, so I am not sure if its changed in Acceleration or what,but it was set to the LEFT tank rather than BOTH, I changed it to BOTH, resaved the default flightand that did it.My sense of great satisfaction in figuring it out was rather offset by my fury at the moron that designedthe thing to work this way :)Well, hope this saves someone else some frustration in any case.

Nah, it's not really just an Acceleration thing. It's the problem of the default flight. FS has stored many "default" buttons to the positions as they are in the default flight, and so you'll see this kind a thing happen if the default flight is not just right. Sorry to only have spotted your thread now, though, although i don't think I could have helped you...