page 17 of the tutorial deals with fuel

 

"enter your route and then check the PROG page’s fuel prediction for the destination airport – subtract your current load from the amount it predicts at the destination and add 15500 lbs (7000 kg) for alternate/hold and so on and that’ll be a decent estimate. Use more if you have a long distance alternate or other extenuating circumstances. A rough rule of thumb is to assume the airplane will use around 17,600 lbs (8000 kg) of fuel per hour of flight time. D"

 

Having planned a route of LSGG-OBDM I save and go to PROG but there is no fuel , just Distance. When I cycle through the 4 pages it does show fuel but only the amount that is default.(med)

 

Has anyone used the above method? Im trying to figure out what Im doing wrong

 

page 17 of the tutorial deals with fuel

 

"enter your route and then check the PROG page’s fuel prediction for the destination airport – subtract your current load from the amount it predicts at the destination and add 15500 lbs (7000 kg) for alternate/hold and so on and that’ll be a decent estimate. Use more if you have a long distance alternate or other extenuating circumstances. A rough rule of thumb is to assume the airplane will use around 17,600 lbs (8000 kg) of fuel per hour of flight time. D"

 

Having planned a route of LSGG-OBDM I save and go to PROG but there is no fuel , just Distance. When I cycle through the 4 pages it does show fuel but only the amount that is default.(med)

 

Has anyone used the above method? Im trying to figure out what Im doing wrong

 

I don't have the tutorial with me at the moment, but sounds very much that if your seeing distance only on the progress page then the fmc is missing some information (in order for it to predict arrival fuel). Go back to the perf page and check what you have entered.

Thanks

Im in the air now but from memory I entered the route and payload  as thats as far as I could go before needing to know the fuel available so I could continue to init ref.

Im in the air now but from memory I entered the route as thats as far as I could go before needing to know the fuel available so I could continue to init ref.

Ok, I don't want to confuse the issue - and by that I'm referring to my writing style, but the 3 cdus in this aircraft make this process a delight, i.e you can bring up the perf page on one, prog page on another, fs actions on the centre one.

 

On the perf page you can enter the zfw and then enter the fuel manually and it will predict from that. Keep adjusting that and watch the progress page until it predicts a value you're happy with.

 

Then from FS aircraft actions menu, fuel her up with that amount. But you must go back to the perf page and enter the same fuel value that you finally loaded.

Hope it helps - I have spent lots of time with this as I find it interesting to experiment.

Regards

Ha ha brilliant Carl  !, I was doing 2 of them when using GSX for doors but never thought about your concept for fuel . Thanks will try it next flight :-)

I do a rough calculations which works for all my jet.

 

450 nm = 1 hour = 8t for the T7.I add 30mns for holding and 1 hour for safety.

 

NGX 2.6T p/h,MD11X 8T,AES 2.6T and NGX 2.6.

 

For the T7 I Apply full load then I amend the fuel only,amazing aircraft.

 

AlainV

 

 

But you must go back to the perf page and enter the same fuel value that you finally loaded.

 

...or delete the MANUAL entry that's in there - that will work, too.  For me, it serves as a confirmation that the CALC value is calculating properly.

 

Thanks for posting that method, though.  A lot of people don't give it enough credit.

I highly recommend checking out simbrief dot com. I used it for the first time today on DL80 (LAX to ATL) and the fuel predictions were PERFECT. I landed with 900 (yes 900) pounds more fuel than their planner said I would land with. It really creates quite the comprehensive dispatch briefing for you...NOTAMS, weather, and all. If you've seen the Air Canada 777-300ER video and recall the part where the captain was logging fuel burn vs. predicted on his paper briefing, this thing has an identical section. It was awesome following along with my flightplan and writing, +0.4, +0.4, +0.5, etc and seeing how close to the actual fuel burn my "briefing" was.

 

Anyway, you do have to sign up but it is free. It can even use up-to-date navdata provided you have a navigraph subscription. I don't know where they get their calculation data from, but as long as you have the ZFW correct, the predictions are very accurate.