With 36 gallons of usable fuel and a fuel consumption rate of 12.4 gal/hr, how much farther can an airplane be flown under night VFR if the flight time is 48 minutes?

To determine how much farther the airplane can be flown under night VFR with the given fuel and consumption rate, we first need to assess the fuel consumption during the specified flight time of 48 minutes.

Given that the airplane has 36 gallons of usable fuel and consumes fuel at a rate of 12.4 gallons per hour, we can convert the flight time from minutes to hours. There are 60 minutes in an hour, so 48 minutes is equal to 0.8 hours (48/60 = 0.8).

Now, we can calculate the total fuel consumed during this 48-minute flight:

Total fuel consumed = fuel consumption rate × flight time

= 12.4 gal/hr × 0.8 hr

= 9.92 gallons.

Next, we subtract this from the total usable fuel:

Remaining fuel = total usable fuel - fuel consumed

= 36 gallons - 9.92 gallons

= 26.08 gallons.

Now that we know how much fuel is left, we can calculate how much farther the airplane can fly with the remaining fuel by using the fuel consumption rate:

Distance = fuel remaining / fuel consumption rate.

Since we need to find out how many hours the remaining fuel will