Under specific conditions, what is the approximate flight time available with 318 lb of usable fuel?

To determine the approximate flight time available with 318 pounds of usable fuel, it is essential to understand the aircraft's fuel consumption rate, typically expressed in pounds per hour.

In this scenario, the correct selection indicates that the aircraft consumes fuel at a rate that allows for approximately 2 hours and 27 minutes of flight time using the available 318 pounds of usable fuel. This implies that the fuel consumption rate is optimized, considering the aircraft's engine efficiency, weight, altitude, and other operational factors.

For effective flight planning, knowing the specific rate of fuel consumption is crucial, as it allows pilots to estimate the duration their fuel will last based on the total usable fuel. In this case, the fuel consumption is likely calculated as around 126 pounds per hour, which leads to the conclusion that 318 pounds results in roughly 2 hours and 27 minutes of flight time. This calculation is particularly important for ensuring safe flight operations and planning for any contingencies that may arise during the flight.