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Revision exercise ETO and PNR

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TheGads created the topic: Revision exercise ETO and PNR

Question 5

Find trip fuel available for air transport flight if useable fuel on board at start up is 140gal.

Answer B

Trip fuel = [140-3-17.25] / 1.1 = 109 gal.

Where is the 17.25 coming from?
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bobtait replied the topic: Revision exercise ETO and PNR

I guess you are referring to Question No 5 on page 125 of the CPL Performance book. The answer given on page 135 is worked as follows.

(Usable fuel at start up - Taxi allowance - Fixed reserve) ÷ 1.1
(140 -3 - 45mins @ 23gph) ÷ 1.1
(140 - 3 - 17.25) ÷ 1.1 = 109gal (rounded up)
Bob
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