Dont spend an hour prepping a LHR-JFK flight in your PMDG 747X, take off, fly the cruise to TOC, and then go and do some odd jobs around the house which involve flipping the fuse box off. After a few hours fitting new lights in my house, I come back to check on progress only to find a blank screen and a deadly silence....B******S!:)

Owww! That sucks mad.Ty for the advice, but here power cut-outs are rather automatic than manual >_<

I have one light switch in the kitchen that sometimes flips my fuses off, couldn't find why. I tend not to use it when I do something on my PC. :)Greg Furmanski

Get an uninteruptible power supply (UPS) and this won't happen. ;)

Oooh that does suck big time!! But look at it this way, we have finally reached a level of perfection within the FSX realm... what has happened to BSOD's due an issue with an addon?I'll take a crash due to my handiwork around the house over that any day.Hope you recovered early enough to redo the flight friend.Best regards,Robert

A wonderful feature, especially for those long haul flights where a crash would ruin many hours of planning, is using one of FSUIPCs features: Interval Autosave. That will create a Flight Simulator Flight Save together with the Panel State Save of PMDG airplanes at regular intervals you choose. You can use 60 seconds so you can come back in 5 minutes exactly where you left off, FMS and FCP set exactly as you left it. Then you can continue with ATC as nothing happened and they'll think you came out of the Bermuda Triangle. :)Of course this is available only in the registered version of FSUIPC, but I use that anyway to keep my FS clock synced to the real time so my Oceanic reports are accurate.

The FSUIPC autosave function is a must have, because you never know when a CTD or other kind of issue will happen. That feature, and the ability to retrieve historical weather at the time of the crash, has saved my carefully planned flights many times. And of course, it helps if the a/c you are flying properly saves all relevant info in the panel save function, which I find is perfect in the LevelD 767 and PMDG heavies.

I calmed down enough to re-do the flight on Sunday. Had to re-do the paperwork for the new weather. All was well in the end! :)One thing that stuck out though (was first long flight using 744X - used to have 747 for FS9 years ago). I used ActiveSky, FSBuild and TOPCAT. T flew the plan "on rails", however I was about 20 mins early and 2 tonnes over my fuel burn. Made me wonder.... what cost index does FSBuild assume? I was flying 200 (and forgot to slow to 0.84 Mach for the NAT crossing... oops)

I did an EDDF to KSFO yesterday - 10hr+ flight and at the end I was had 20 tonnes of fuel left usign ASE for the weather and a 100 CI so you did a lot better than me lol I was aiming for 10 tonnes reserve but at least I know now it's a matter of knocking a bit more off my fuel planning.3 minutes late at San Fran so not too bad really.John Ellison

Interesting... maybe i will redo the flight next weekend with a 100 CI and see what happens.Anyone else any experience of this?

In your FS Build folder you will find an fsb_aircraft.cfg folder that contains data. Included is a line that points to a ".prf" file in the Aircraft folder.Here's the section for the B737-700:[b737-700 w/ CFM56-7B24] -- (M.Brodbeck) ---WeightUnit=LBSOperEmptyWeight=83000PayloadWeight=27000ReserveFuel=:45AlternateFuel=HoldFuel=81/minExtraFuel=TaxiFuel=25/minApproachFuel= MaxTakeoffWeight=154500MaxZeroFuelWeight=121700MaxLandingWeight=129200MaxFuelWeight=46063ImageFile= PerformanceData=b737cfm.prfToldData= DefaultTOFlaps=5;MachCruise=78;ClimbSpeed=392;ClimbRate=1750 ;CruiseSpeed=448;DescentSpeed=295;DescentRate=1600;FuelBurn1=7062;FuelBurn2=5150;FuelBurn3=4970;FuelBurn4=4806;FuelBurn5=4600;FuelBurn6=4460Here's the b737cfm.prf data for a 737-700 CFM engine equipped aircraft as pointed to in the above section:------------------------[b737] ----------------- Boeing 737-700 --------------[uNITS]FUEL=lbs/hrWEIGHT=LBSMACHCRUISE=LRC[CLIMB] ;climb based on 150klbs ISA 250/280/.78; ALT TAS ROC FUEL35000 324 2333 12000[CRUISE]; ALT TAS FUEL (Based on Mach LRC cruise / (GRWT (1000/LBS))[GRWT] 170 160 150 140 130 120 110 100 90 80; 41000 448 --- --- --- --- 5186.0 4624.0 4180.0 3856.0 3534.0 3192.039000 447 --- --- --- 5430.0 4922.0 4496.0 4140.0 3822.0 3528.0 3160.037000 446 --- 6278.0 5676.0 5206.0 4806.0 4460.0 4146.0 3820.0 3500.0 3138.035000 452 6470.0 5956.0 5506.0 5130.0 4802.0 4500.0 4172.0 3816.0 3488.0 3150.033000 453 6278.0 5864.0 550.0 5186.0 4886.0 4550.0 4190.0 3814.0 3514.0 3188.031000 455 6238.0 5896.0 5580.0 5276.0 4932.0 4564.0 4184.0 3834.0 3552.0 3230.029000 451 6284.0 5974.0 5656.0 5306.0 4934.0 4554.0 4198.0 3860.0 3540.0 3256.027000 446 6370.0 6030.0 5676.0 5296.0 4918.0 4562.0 4222.0 3902.0 3562.0 3272.025000 437 6406.0 6042.0 5652.0 5286.0 4932.0 4594.0 4274.0 3932.0 3578.0 3284.0[DESCENT] ; dsc based on 250/280/.78; ALT TAS ROD FUEL37000 311 1762 1429[Altitude]; --- Altitude Capability ;Altiude GrossWt29000 18000031000 18000033000 18000035000 17000037000 15000039000 13000041000 120000---------------------In the User Guide folder you'll find "Data Files 2.pdf" that describes some parameters.No CI is taken into consideration as for example in the various performance manuals supplied with the PMDG 737 series the tables do not reference CI as such.If you edit anything back up these files first and be sure to use notepad in .txt mode.