What a lot of people don't know is that (real world) dispatch software actually uses the same fuel prediction code as the FMC.

It´s an airplane! (Believe me! I´ve seen some in reality. The 777 just isn´t a flight- or fuelplanner. In both cases you get a great briefing wich also includes the needed fuel.

Of course, its a quick solution and it can be done in the simulator, but for a real fuelplaning I would also suggest to use PFPX (wich is payware) or to register and use the free service at to generate a flight plan there. Instead the FMS numbers are there to figure out, how your fuelplan works out along the way. To be honest, if you take it seriously, you would not use the FMS for fuelplaning.

You can use the real world fuel burn numbers.īut correct use of PFPX as a planning tool (and not a magic 'make my entire route for me) in conjunction with ActiveSky Next (yes I was that specific) for weather, will nail the fuel prediction every time. 4 metric tonnes per hour is a reasonable guess if you stick right on the optimum and apply large reserves while being careful with winds and actual time of flight (perhaps base off real world). The amount of fuel the thing uses depends on route duration, altitude, weather, winds, temperatures, air densities, step climbs, yadda, etc. You can also enter a 'Load Level' (in this case 65.1%) with any number between 0% and 100%įuel planner doesn't come with it (And I can't remember any fuel planner coming with any PMDG product?) I'd suggest PFPX, or other planning softwares. This is either Imperial Tons (as shown in the pic) or Metric Tonnes depending on the setup you have/livery. You can also directly enter a ZFW (tonnes with decimal point, can include up to 3 decimal points, though only the first one will be shown. You can directly interact with the fields:įwd/Aft Cargo (must be entered as Number/Number ie 10000/10000 The number before '/' goes to the front cargo hold, the trailing number goes to the back one) Payload can be edited either by Passenger & cargo holds, or by total zfw (which will distribute a 'plausable' loadout of passengers and cargo, automatically distributed for a good %mac trim number).

You can add and subtract fuel either instantly, or set up the 'turn around' program to gradually fuel you up in real-time (ie it will take several minutes to load fuel, and by 'several' - 40+ minutes for a full tank is possible) You insert fuel and cargo and passengers using the FS Actions interface listed on the 'menu' page of the FMC (CDU units) inside the running simulator.

Pmdg 777 fuel planner