FAA AMT Airframe Practice Exam 2026 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

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What is the approximate drag load on an antenna with a frontal area of .137 square feet installed on an aircraft with a speed of 275 MPH?

2.069 pounds

3.387 pounds

The drag force on an object can be calculated using the formula: Drag Force = 0.00256 x Air Density x Velocity^2 x Frontal Area.

Given that the frontal area is 0.137 square feet and the speed is 275 MPH, we can plug these values into the formula along with the air density value of approximately 0.00256 slugs/cubic foot for sea level conditions.

Calculating the drag force using the formula gives us a result of approximately 3.387 pounds. This is why the correct answer is B.

Options A, C, and D are incorrect as they do not reflect the correct calculation based on the given values in the question.

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1.5 pounds

4.0 pounds

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