With a fuel consumption of 15.3 gallons per hour and a groundspeed of 167 knots, how much fuel is required to travel 620 nautical miles?

To determine the amount of fuel required to travel a distance of 620 nautical miles at a groundspeed of 167 knots, we first need to calculate the total flight time.

The flight time can be calculated using the formula:

Flight Time (hours) = Distance (nautical miles) / Groundspeed (knots)

Substituting the values:

Flight Time = 620 nautical miles / 167 knots ≈ 3.71 hours

Next, we need to calculate the total fuel consumption using the fuel burn rate, which is given as 15.3 gallons per hour. The total fuel required can be computed with the following formula:

Fuel Required (gallons) = Flight Time (hours) x Fuel Consumption Rate (gallons/hour)

Applying the values we calculated:

Fuel Required = 3.71 hours x 15.3 gallons/hour ≈ 56.79 gallons

Rounding this value gives us approximately 57 gallons, which aligns with the accepted answer. This methodical approach highlights how the fuel consumption rate and distance traveled are integral to calculating the necessary fuel for the journey.