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FS9 Fuel Calculations?  
User currently offlineNASOCEANA From United States of America, joined Jul 2005, 291 posts, RR: 0
Posted (7 years 9 months 2 weeks 3 hours ago) and read 2459 times:

I calculate my fuel for a 4500nm with a B777-300 flight as follows:

4500nm/480knts = 9.375 hrs x 22,000lbs = 206,250lbs x 1.08 = 222,750lbs and depending on the airport I'll add taxi fuel according to EST. taxi time.

So I will use 222,300lbs + taxi fuel to complete a 4500nm trip.

The 22,000lbs is fuel consumption per engine per hr. (11,000 x 2).
The 1.08 is used as my reserve fuel, usually 45 min. worth. (16,500)

Are these calculations correct? I usually arrive at my destination with about 20,000lbs in the tank when landing.

I think that the fuel calculations given in FS are not realistic so I compute my own for each trip.

How do you calculate fuel and cruise level for your trips?


B777 greatest Airliner ever built!
3 replies: All unread, jump to last
 
User currently offlineAtco2b From United Kingdom, joined Mar 2005, 1114 posts, RR: 8
Reply 1, posted (7 years 9 months 1 week 4 days 12 hours ago) and read 2380 times:

I do mine a bit simpler than that Big grin

I do the Route-Planner, see what i need then add on about 50% extra.
Usually get it about right  Wink


Hey, you want to go out for pizza and some sex? What, you don't like pizza?
User currently offlineGoldenshield From United States of America, joined Jan 2001, 5490 posts, RR: 13
Reply 2, posted (7 years 9 months 1 week 1 day 10 hours ago) and read 2323 times:

While nowhere near exact, if we use 121 flag rules, and the figure that you have provided, I estimate a minimum release fuel of 225,000 pounds.

BURN 206250
ALTN 000000
INTL 002200
HOLD 016500
--------
RLSF 224950
LAND 018700


Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.
User currently offlineIntothinair From Germany, joined Mar 2005, 392 posts, RR: 2
Reply 3, posted (7 years 9 months 5 days 15 hours ago) and read 2267 times:

Yeah, it doesn't seem to be perfectaly accurate. On a different note, according to FS the Learjet 45 flies 2200NM. maximum. I managed to fly it just over 5000NM(No joke) non stop, that being with a 70pounds light pilot and no pax or baggage, and at a little bit higher altitudes. Does it really make such a difference?i can't imagine so, in real life i mean.

Cheers, Konstantin G.
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