How much AvGas is required to fly 600 nautical miles with a 15 knot headwind?

To determine the amount of AvGas required for a flight of 600 nautical miles with a 15 knot headwind, we first need to understand the relationship between distance, airspeed, and time. The required information includes the aircraft's ground speed, which is the result of subtracting the headwind from the true airspeed.

Assuming a general cruising speed of the aircraft is around 120 knots (as an example), we can calculate the ground speed during the flight. The effective ground speed, in this case, would be 120 knots minus the 15 knot headwind, resulting in a ground speed of 105 knots.

Next, we can compute the time required for the journey using the formula: time = distance / ground speed. This means it would take (600 nautical miles / 105 knots) approximately 5.71 hours to complete the flight.

To find out how much fuel is needed, we also need to consider the aircraft's fuel consumption rate, which is often expressed in gallons per hour. For example, if the aircraft consumes 10 gallons of fuel per hour, we would multiply this rate by the time in the air: 10 gallons/hour * 5.71 hours gives us roughly 57 gallons