Fighters in T2K - fuel consumption

[pmulcahy11b]

I'm fully statting out the F-16 Fighting Falcon, and have run into one realization and one difficulty:

1) Aircraft with afterburners will need to have two Acc (Acceleration) figures -- one in military power, and one for when the burners are lit.

2) I can easily come up with a "standard" fuel consumption, but light those burners again, and fuel consumption increases astronomically. That's the one I'm having difficulty with. An F-15C Eagle, for example, can go to bingo fuel in less than 20 minutes in afterburner -- and a fighter pilot may go in and out of afterburner several times in a tough fight. I can't figure out how to stat that kind of fuel consumption.

[Tegyrius]

Abstract it as liters of fuel consumed per turn of afterburner use

- C.

[Cdnwolf]

From an online source...

http://www.defencetalk.com/forums/air-force-aviation/calculating-specific-fuel-consumption-7055/

Ok i have found this site.

http://www.jet-engine.net/miltfspec.html

F-15E using the F100-PW-229..

Dry thrust: 17,800 lb thrust
Wet thrust: 29,100 lb thrust
Specific fuel conumption dry: 0.726 lb fuel /lb thrust per hour
Specific fuel consumption wet: 2.060 lb fuel / lb thrust per hour

Now if an F-15 has 22,000lb of fuel


FULL AFTERBURNER
29,100lb of thrust * 2.060 = 59,946 lbs of fuel consumed per hour per engine.

With two engines thats 120,000lb of fuel consumed in one hour.

22,000 lb of fuel / 120,000lb of fuel = 0.1833 hours

So at full afterburner the F-15E will run out of fuel in 11 minutes.

Dry Thrust
17,800lb of thrust * 0.726 lb = 12,922 lbs of fuel consumed per hour per engine.

With two engines thats 25,845 lbs of fuel consumed in one hour

22,000lb of fuel / 25,845 of fuel = 0.8512 hours

So at full dry thrust the run out of fuel in 51 minutes.



As If an F-15 can only travel 1000km/h at dry thrust then it would have a total range of under 1000kms

Though if an F-15 cruises at 1000km/h with only 70% throttle fuel consumption will be alot less and the range will be reaching 2000kms..

[pmulcahy11b]

Thanks Wolf, that's a really handy link!

+1