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 Beginner's Guide to Propulsion

Range and Fuel Consumption - Worksheet

Using the Airplane Information sheet, please answer the following questions concerning range and fuel consumption.

Note: KTS = Knots (speed), NM = Nautical Miles (distance)

Answer the following questions:

  1. You are an acrobatic pilot getting ready to go to an air show. The air show is being held at an airport 500 nautical miles (NM) away. Given the cruising speed of the Extra 300 you are flying, how long will it take to fly to the air show?

  2. In the situation above, will you be able to fly to the air show without refueling along the way? Why or why not?

  3. A Cessna Skylane has a range of 820 NM, and a cruising speed of 140 KTS. How many hours will it take you to fly 820 NM?

  4. Since the Skylane has a fuel capacity of 88 US GAL (including 10% in reserve -- Don't forget to subtract the 10% before figuring your consumption.), how many gallons of fuel per hour does it use?

  5. You are flying a Cessna Skylane at a speed of 120 KTS. You are flying on a trip that will take you 520 NM. How long will it take you to get to your destination?

  6. In the situation above, given that your Cessna holds 88 US GAL of fuel (with 10% held back as reserve fuel), how much fuel will you use? (Hint: you will need your final answer from Question 4 above to find this number.)

  7. You are the pilot of a Learjet 31A leaving Chicago's Meigs airfield under dense fog conditions. You must fly using your instruments (IFR). How much fuel do you have for this flight? (Don't forget about your reserves.)

  8. You've been flying the Learjet for 1.5 hours, at a speed of Mach .76 (Visit the Conversion page to convert Mach numbers into Knots.), under visual flight conditions (VFR). How much fuel do you have left (excluding reserves)?

  9. How much farther could you fly on the fuel you have left from Question 8?

  10. You are a WW-I Sopwith Camel fighter pilot chasing the infamous "Red Baron." You are traveling at a speed of 115 KTS. You know that your enemy is 40 NM away from you. How many minutes will it take to reach him?