What is the fuel requirement when descending from 10,500 ft to an airport at 1,700 ft?

The fuel requirement during a descent can generally be estimated based on the aircraft's operational parameters and the characteristics of the descent. In this case, the descent from 10,500 feet to 1,700 feet covers a vertical distance of 8,800 feet.

For general aviation aircraft, the fuel consumption during a descent can often be expressed in terms of gallons per 1,000 feet of altitude lost. Typically, this is about 0.3 to 0.5 gallons per 1,000 feet in descent, depending on the aircraft's design, weight, and descent rate.

Let's break down the calculation using a common average estimate, such as 0.3 gallons per 1,000 feet.

1. Calculate the number of thousands of feet in the descent:

8,800 feet is 8.8 thousands of feet.

2. Multiply by the fuel burn rate:

Assuming an average of 0.3 gallons per 1,000 feet:

8.8 * 0.3 = 2.64 gallons.

Therefore, rounding to the closest common choice available, the fuel requirement of approximately 2.5 gallons aligns with the reasonable estimate of the descent fuel consumption for this