Citizen AD2992-59P - Calculation of fuel consumption rate (consumption per hour); Calculation of fuel consumption

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English
[Calculation of fuel consumption rate (consumption per hour)]
Q : If the ight time is 30 minutes and 120 gallons fuel is consumed, what is the fuel
consumption rate?
A : Align 12 of the outer scale with 30 of the inner scale.
Result: 240 gallons per hour - 24 corresponding to the SPEED INDEX “”.
[Calculation of fuel consumption]
Q : If the fuel consumption rate of an aircraft is 250 gallons/hour, how many gallons
of fuel are needed to y 6 hours?
A : Align 25 of the outer scale with the “” of SPEED INDEX of the inner scale.
Result: 1,500 gallons - 15 corresponds to 6:00.