CITIZEN H461 - Manual (Page 35)

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5. Fuel consumption calculation
Question: How much fuel is consumedin 6 hours at a fuel consumption rate of 250
gallons per hour?
Solution: Align the 25 of the outside scale with the inside scale’s SPEED INDEX (Y)
of the inside scale. The 6:00 is aligned with 15, and the answer is 1500
gallons.
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4. Fuel consumption rate calculation
Question: If 120 gallons of fuel are consumed in 30 minutes’ flying time, what is the
fuel consumption rate?
Solution: Align the 12 of the outside scale with 30 of the inside scale. The SPEED
INDEX (Y) now points to 24, and the answer is 240 gallons per hour.