If you have 50 gallons on board and burn 9 gallons per hour, what is the endurance in hours?

If you have 50 gallons on board and burn 9 gallons per hour, what is the endurance in hours?

• A. 4.44 hours
• B. 5.56 hours
• C. 6.5 hours
• D. 5.0 hours

Answer: (B)

Endurance is how long you can fly on the fuel you have. It’s found by dividing the fuel on board by the burn rate. With 50 gallons on board and burning 9 gallons per hour, you get 50 ÷ 9 = 5.555... hours, which rounds to 5.56 hours. In minutes, that’s about 5 hours and 33 minutes. The other numbers would come from a different burn rate or different rounding, but the correct endurance is 5.56 hours.

Endurance is how long you can fly on the fuel you have. It’s found by dividing the fuel on board by the burn rate. With 50 gallons on board and burning 9 gallons per hour, you get 50 ÷ 9 = 5.555... hours, which rounds to 5.56 hours. In minutes, that’s about 5 hours and 33 minutes. The other numbers would come from a different burn rate or different rounding, but the correct endurance is 5.56 hours.