22
6. Maximum flying hours
Question: With a fuel consumption rate of 220 gallons per hour and a fuel
supply of 550 gallons, what is the maximum number of flying
hours?
Solution: Align the 22 of the outside scale with the inside scale’s SPEED
INDEX ( ▲ ) of the inside scale. The 55 of the outside scale is now
aligned with 2:30, and the answer is 2 hours and 30 minutes.
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