747:Error in the example of the "Cruise and Fuel Planning" manual?

[gassa]

Hello,I just tried to do an exact fuel planning according to the "Cruise and Fuel Planning" manual. Could it be that there is a mistake with adding the adjustment fuel on page 2-14 of the manual (Passenger version of the aircraft)?The planned landing weight of the example flight from KSFO to KIAD is 544100lbs, which is 69100lbs above the Table description weight of 475000lbs mentioned above the table on page 2-7.On page 2-7 is written: "For every 10000lbs deviation above (below) 475000lbs, add (subtract) fuel burnout correction shown in "Adjust" row on bottom of the tabel"In the example below that text they use a trip with 4800nm at FL410 and a planned landing weight of 505000lbs. That gives a fuel of 198000lbs and the following adjustment: (700lbs/hr x 3)x10hrs.In the example on page 2-14 the forget to multiply the adjustment fuel with the time of 5 hours. They just do the following: Step 1: 70000/10000=7Step 2: 7x880lbs=6160lbsand that's itI think there should be a Step 3:Step3: 6160lbs x 5hrs=30800lbs adjustment fuel.So please, can someone tell me if there is a mistake in the manual or if I'm doing something wrong.ThanksKind RegardsMartin