Although I have only flown two flights so far each time Engine 1 has cutout and cannot be restarted (could be doing something wrong when trying to restart). Being new to the aircraft I have been starting with engines up and running. I could be wrong but it seems to happen when Centre Tank empties but why only Engine 1? All crossfeeds are open.While I am posting I would be interested to know when flying with less than full fuel tanks which order should I drop fuel level in. In case that doesn't make sense I assume if I want, say 3000 Lbs less fuel I should reduce the amount in the Centre tanks or should I lower the amount of fuel in the wing tanks?Many thanks.PS yes I did try search :-)Andrew Brownhttp://www.crazypilots.pwp.blueyonder.co.uk/

I don't have the iFly version, but you want to take fuel out of the center tank first before anything else. not sure why your engine would cut out, are all the fuel pumps and bleed switches correct?

All pumps and bleed switches are OK. Thanks for the remark regarding the fuel distribution just as I figured / hoped :-)Andrew Brownhttp://www.crazypilots.pwp.blueyonder.co.uk/

Actually i get the same problem. It seems engine 1 is impossible to startup. Shams as it is such a great package.

I agree regarding great package. Just finished another flight from Cairo to London. Assuming it needs fuel in centre tank I will try leaving some in there, doesn't seem to matter if that tank is pumping or not lol. Maybe when I am not busy I can try some bug hunting :-)ThanksAndrew Brownhttp://www.crazypilots.pwp.blueyonder.co.uk/

Yes, you do need to keep at least some fuel in each fuel tank. Order of engine failure isCentre Tank Empty number 1 engineLeft/Right Auxillary Tanks Empty number 4 engineEngines 2 and 3 ... dunno can't be bothered to find out.I am no expert but it does make sense to have at least a little fuel left in the tanks, perhaps someone could thrown light on the question of in the real world would the pumps be turned off when fuel tank shows zero fuel or before that time?You can get away with less than 0.1 percent in any of the tanks BUT note that a tiny amount of fuel is still consumed from all tanks even with the pumps turned off so I suggest on a long flight not waiting until there is 0.1 percent left!Finally I noticed that if both Centre Tanks are empty when you begin a flight all engines will fail. None of the engines can be restarted unless you cheat and add some fuel to the relevant fuel tank using fuel and payload.Andrew Brownhttp://www.crazypilots.pwp.blueyonder.co.uk/

More than likely the panel does switch tanks, but not before the quantity in the tank supplying fuel to the engine goes to zero, causing an engine shutdown.This has been a problem in a number of advanced panels...payware as well as freeware...over the years. Usually, if you select a different tank before the one supplying fuel is empty you won't see the problem, dependent of course on how the fuel logic is coded in the panel.If the panel coding waits until the tank is actually at 0 to switch tanks, then FS may detect the empty tank, even if just for one frame cycle, and kill the engine. Panel logic should do its switching at some point prior to actually reaching 0. And any panel that switches back and forth between tanks to emulate different crossfeed configs will kill engines if it switches *to* an already empty tank.I don't have this panel...but if you can, try shutting off the center tank pumps manually prior to empty and see if that helps.RegardsBob ScottATP IMEL Gulfstream II-III-IV-V L-300Santiago de Chile

>More than likely the panel does switch tanks, but not before>the quantity in the tank supplying fuel to the engine goes to>zero, causing an engine shutdown.>>This has been a problem in a number of advanced>panels...payware as well as freeware...over the years. >Usually, if you select a different tank before the one>supplying fuel is empty you won't see the problem, dependent>of course on how the fuel logic is coded in the panel.>>If the panel coding waits until the tank is actually at 0 to>switch tanks, then FS may detect the empty tank, even if just>for one frame cycle, and kill the engine. Panel logic should>do its switching at some point prior to actually reaching 0. >And any panel that switches back and forth between tanks to>emulate different crossfeed configs will kill engines if it>switches *to* an already empty tank.>>I don't have this panel...but if you can, try shutting off the>center tank pumps manually prior to empty and see if that>helps.>>Regards>>Bob Scott>ATP IMEL Gulfstream II-III-IV-V L-300>Santiago de Chile>>>Thanks for your comments Bob. Sounds like I might be doing the right thing for once. I turn off the pumps on the centre tank during the flight at a point where I can guestimate there will still be fuel in the tanks when I land. With Pumps off it still loses fuel albeit so slowly that unless you monitor it you might not notice it on some flights. I have heard that the designers are working on a fix.Andrew Brownhttp://www.crazypilots.pwp.blueyonder.co.uk/