21
20
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.
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.