FAA 107 Payload & Performance Calculations 2

Question 1

A sUAS has a maximum takeoff weight (MTOW) of 4.4 lbs. The drone itself weighs 3.2 lbs. What is the maximum payload it can carry while remaining legal under Part 107?

Accepted Answer

1.2 lbs

Answer

Payload capacity equals MTOW minus drone weight: 4.4 - 3.2 = 1.2 lbs.

Question 2

Which factor most directly determines how payload weight affects drone flight endurance?

Accepted Answer

Increased motor current draw depletes battery faster

Answer

Additional payload forces motors to draw more current to maintain lift, which drains the battery more quickly.

Question 3

A commercial drone operator needs to carry a 0.5 lb camera package. The drone battery weighs 0.4 lbs and the airframe weighs 2.8 lbs. What is the total system weight for FAA compliance purposes?

Accepted Answer

3.7 lbs

Answer

Total weight includes airframe + battery + payload: 2.8 + 0.4 + 0.5 = 3.7 lbs.

Question 4

Under FAA Part 107, the 55 lb weight limit for sUAS refers to:

Accepted Answer

The total weight of the aircraft including everything onboard at takeoff

Answer

Part 107 defines 55 lbs as the maximum takeoff weight including the aircraft, payload, batteries, and all attached equipment.

Question 5

A drone rated for a maximum payload of 2 lbs is loaded with a 1.8 lb sensor package. How does this affect the drone's performance compared to flying without a payload?

Accepted Answer

Reduced endurance and potentially reduced top speed

Answer

Any added payload increases motor load and battery consumption, reducing endurance and possibly limiting top speed even if within rated limits.

FAA Practice Test

FAA Practice Test

FAA 107 Payload & Performance Calculations 2