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14th Feb 2023, 16:01

#12 (permalink)

k.swiss

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Join Date: Oct 2016

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Quote:

Originally Posted by iggy

FOB = 9 tons
EFOB at destination in FMGC = 3 tons

Therefore, trip fuel is 6 tons, 6 x 1.8 = 10.8 tons actual trip fuel with landing gear failure.

I honestly hope it goes like this because this is how I have been explaining it to my trainees for years now...

Interesting..

Quote:

Originally Posted by KingAir1978

This calculation is not correct, I'm afraid. The PENALTY is 180%. Therefore the total fuel used would be the fuel normally used PLUS the penalty. You have only calculated the penalty (6x1.8 = 10.8) The total fuel burn would thus be the 6 tonnes, PLUS the 10.8. = 16.8 tonnes. Also you may need to include the penalty for open gear doors of 15%. To be conservative just multiply the fuel-burn by 3.

Very interesting..

So which one is it? May someone explain with another example perhaps?

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