PPRuNe Forums - View Single Post - weight reduction versus fuel saving formula?

13th Apr 2007, 21:22

#2 (permalink)

CaptainSandL

Join Date: Nov 2003

Location: UK

Posts: 495

Likes: 6

Received 11 Likes on 1 Post

Very approximately…

Trip Fuel Reduction = Weight reduction x Flight time in hrs x 3.5%
Daily Trip Fuel Reduction = 100kg x 10hrs x 3.5% = 35kg/day
Annual TFR = 35kg * 350days = 12,250kg

Given a 25 year lifespan = 306,250kg

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