Citizen Nighthawk Series - Flying Distance and Fuel Calculations; Flying Distance Calculation; Fuel Consumption Rate Calculation; Fuel Consumption Calculation

3. Flying Distance Calculation
Question :
Solution:
What is the flying distance traveled
in 40 minutes at a speed of 210
knots?
Rotate the lower left crown in either
direction to align the '21' on the
Outside Scale with the 'Speed Index' on
the Inside scale. The '40' of the Inside
scale is now pointing to '14'. The
answer is 140 nautical miles.
4. Fuel consumption rate calculation
Question:
Solution:
If 120 gallons of fuel are consumed in
30 minutes of flying time, what is the
fuel consumption rate?
Rotate the lower left crown in either
direction to align the '12' on the Outside
scale with '30' on the Inside scale. The
'Speed Index' on the Inside scale now
points to '24' on the Outside Scale. The
answer is 240 gallons per hour.
5. Fuel consumption calculation
Question:
Solution:
How much fuel is consumed in 6
hours at a fuel consumption rate of
250 gallons per hour?
Rotate the lower left crown in either
direction to align the '25' on the Outside
scale with the 'Speed Index' on the
Inside scale. The 6:00 is aligned with
'15'. The answer is 1,500 gallons.