KSFO-KATL UAL 2233 Dep 11pm Arr 637am.
Chosen route 19R.CIITY3.SYRAH.JSICA.MLF.DVC.LBL.TUL.MEM.HUTCC.KNSAW.RUSSA.GLAVN1.8L
1872nm guess FL370.
extrapolating manual suggests avg 422KTAS @ 4650pph. Estimate average 60knot tailwind GS 482knots. 232min (3h52m) burning about 18,000lbs. Add 2000 for heavy weight landing new burn 20,000. Alt KBHM 117nm round to 2,600lbs via chart. Add 45min reserve 3,500lbs.
Total fuel reserves 6100lbs. Round 26,100 up to 27,000 for ease and Holding, enroute diversions, wind changes. Add another 500 for start+taxi total at gate 27,500.
MGTOW=133,000.
MGLW=128,000+20,000(burn)=148,000 too heavy to land max weight.
MZFW=120,500+27,000(takeoff fuel)=147,500 too heavy to carry maximum payload.
MTOW KSFO 19R (7,
[email protected]. 22°C cal wind)=161,000lbs under MGTOW.
Max takeoff weight is the limit.
133,000-27,500=105,500lbs-83,000lbs=22,500 max payload.