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weird problem...

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EHM-1437 Jon:
thanks for the help guys, it's been working!

EHM-1437 Jon:
Hey Kendy!  I didn't understand half the stuff stated to caltulate fuel (not sure why, because I know tons about aviation :%), I did know some of it, but could you please explain what you ment?

EHM-1555 Kendy:
No problem Jon,

1.  calculate your Trip Fuel (Flighttime x consumption kg/h
2. + add MINCONT  (=bad weather , add 5% of your TRIP FUEL
3. + add ALTN  (=Alternate Airport, your  ALTN is 15 min. away= xxkg)
4. + add HOLD  (= traffic pattern at your ALTN!! ALWAYS 30 min.= xx kg)
5.  = PLNTOF  (=PlannedTakeoffFuel; TOTAL of STEP1-4)
6. + add Extra  (=Extra Fuel is up to you how much,  don't exaggerate!)
7. = TOF  (=TakeOffFuel; TOTAL of STEP5-6)
8. add TAXI  (=usually 500 kg for taxiing to the runway)
9. = BLOCK (=BLOCKFUEL; TOTAL of STEP7-8)

The Blockfuel is the amount of fuel for your airplane (NOT MORE AND NOT LESS!!)

Please calculate the windspeed in your Trip calculation, here you find a good site to do that:

http://aviationweather.gov/iffdp/

Hope I could help you with the fuel calc,.actually now you just have to calculate your TOW (Takeoffweight), its easy:

ZFW (Zerofuelweight; SUM of Dry Operating Weight+ Total Traffic Load)
+
TOF (Takeofffuel; not Blockfuel because you burn the Taxifuel!)
=
TOW (Takeoffweight)


So now you know how heavy you airplane is, but keep one eye one your max. ZFW, max TOW, max Landing Weight ! (you will find your Dry OperatingWeight in many charts of the airplane, or ask our friendly Fleet Manager Róbert Szikszó)



regards,

Kendy Mathes

EHM-1437 Jon:
Thanks Kendy!  I see what you mean now, but how are you supposed to know the hourly fuel consumption rate for each aircraft?

EHM-1555 Kendy:
you can find it on several websites , I can't tell you everyone because this are too many, just google ;)

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