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PMDG 744 fuel planning issues


Brendan Chen 943434
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Brendan Chen 943434
Posted
Posted

G'day all:

 

I have just recently got hold of the 744. I have read the manuals which came with it, and specially the fuel planning stage of the Flight planning. I could never get enought fuel for a long hual flight. It always starts off fine but after 3 or 4 hours the FMC displays "Insufficient Fuel" and if I refer back to one of the charts, it does support the FMC's warning... This happens to me everytime in a long haul flight (Over 10 hour flight which I have only really completed 2).

(you might see this in other forums from me, because I am desperate to find out why)

 

Could someone please tell me why this happens and what I could do to resolve it please, thank you, any help would be great thanks.

 

Brendan

Brendan Chen

VATPRC Tech Support

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  • 2 weeks later...
Faruk Baran 819422
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Posted

Hi Brendan,

 

I strongly recommend you to go through the docomeentation about CRUISE and FUEL PLANNING.

And be shure to refuel the 747-400 PMDG via PMDG/Options/Fuel - Menu of your FS and NOT in

the Aircraft/Fuel section...

 

Fly safely

 

 

Faruk

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Trent Hopkinson
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Posted

and always add a reserve of at the very least one hour.

 

In the PMDG I usually plan time based rather than distance based, often taking specific airline schedules into account, and then adding a good hour and a bit reserve, sometimes as much as 2 hours reserve.;

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Trent Hopkinson YMML. www.youtube.com/musicalaviator WorldFlight 2002,2008,2009, 2011, 2012, 2013 & 2015

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  • 1 month later...
Roy Watkin 856798
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Posted

Hi I also fly the PMDG 747 and use the fuel planner, but i also reduce all the VNAV air speeds in the FMC to the ones stated in the manual under the fuel calculations section. Or just load your flightplan into the FMC goto the PROG on the FMC to see want fuel you will have on landing. It should be dependant on what you also put in as the reserves in your FMC, 19.0 for internal flights and 24.0 for trans atlantic flights. I hope this will help.

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  • 3 weeks later...
Edward Avarl 956094
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Hi I fly the PMDG 737 800. I know the fuel system in mine is a lot simpler but I sometimes get the same message especially in vnav mode a slight reduction in mach number and it goes away. I can only think headwinds or something like that screw up the thrust settings and fuel burn. I allways add a bit extra now as well but it can still show up. good luck in your search

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