For the purposes of flight planning in FSBuild2 and the MD-11 Load Manager, are the following formulas true?Pax Variants:Pax Weight + Cargo Weight = Total PayloadZFW - payload = empty weight (273373 lbs)Cargo Variants:ZFW - Cargo Weight (no pax) = empty weight (250996 lbs)If incorrect, does anyone know the empty weights for both variants? Thanks...

I know for sure the DOW or BOW of the cargo version ( LCAG ) which is114710 kgs or 252893 lbsfrom a real world flight plan.Karl-Heinz - EDDI/THF " Tempelhof "" The mother of all airports " - Sir Norman FosterWill be closed Oct30,2008 - its a shame !http://www.precisionmanuals.com/images/forum/747400.jpg

Thanks Karl,For the purposes of FSBuild2, I used 273373 lbs for the MD-11(GE)empty weight and got the TOGW within 53 lbs (pax variant) of the load-manager. So I think I'll use the above empty wieghts for the rough approximation of fuel required. In fact, the ZFW in both apps were identical, 381873 lbs.FSBUILD FLIGHT PLANFLT REL IFR LSZH-16/LEMD-18L MACH A/C MD11 W/ CF6-80C2D1F FUEL TIME CORR TOGWT LDGWT AVG W/CTAXI 001800 0015 . . . . 439820 408097 M002DEST LEMD 031723 0131 . . . . ELEV. 2001 FTRESV 012060 0045 . . . .ALTN 004783 0017 . . . . ALTN LEZG DIST 134HOLD 004020 0015 . . . .EXTRA 005360 0020 . . . . ZFW 381873 PAYLOAD 108500TTL AT TO 057947 0308 . . . . DIST 0684REQD 059747 0323 . . . . ETDCLB BIAS 0.0% CRZ BIAS 0.0% DSC BIAS 0.0%DEP BIAS 0 MIN 0 DIST 0 FUEL, ARR BIAS 0 MIN 300 FUELRegards,

Hi Al,just for info a few act figures from this RW flt pln:FRA-DKR 2612 nm wind comp M043 KGSTrip 50409 for 06:045% of trip fuel cont fuel ( normal in Europe ) 2520 for 00:18ALTN 116NM WC M004 3539 00:25Final res 3437 for 00:30Min TOfuel 59905 endurance 07:17plus extra and taxiIn your calculation the time and fuel for alternate seems to be too low ... what is RESV and HOLD - FAA reg.?Karl-Heinz - EDDI/THF " Tempelhof "" The mother of all airports " - Sir Norman FosterWill be closed Oct30,2008 - its a shame !http://www.precisionmanuals.com/images/forum/747400.jpg