Remote Pilot UAS Loading, Performance & Emergency Procedures

Question 1

How does adding weight to a UAS affect its performance?

Accepted Answer

Decreases flight performance

Answer

Adding weight to a UAS increases the load on its motors and reduces its power-to-weight ratio. This leads to decreased efficiency, requiring more energy to maintain flight, which results in a shorter battery life, reduced climb rate, and overall diminished maneuverability. The drone must work harder to counteract gravity, impacting its ability to fly effectively and safely.

Question 2

What is the center of gravity (CG) and why is it important in UAS operations?

Accepted Answer

It affects balance and stability

Answer

The center of gravity (CG) is the point where the entire weight of the UAS is concentrated. Its correct placement is crucial because it directly impacts the drone's balance and stability during flight. An improperly balanced UAS can become unstable, difficult to control, and potentially unsafe, leading to unpredictable flight characteristics and potential accidents.

Question 3

What action should a remote pilot take after a flyaway incident?

Accepted Answer

Report to FAA if criteria met

Answer

A flyaway incident involves a loss of control of the UAS. Remote pilots are required to report certain incidents to the FAA, specifically if the flyaway results in serious injury to any person or significant damage to property (excluding the UAS itself). This reporting helps the FAA track incidents, analyze trends, and ensures compliance with regulations, contributing to overall aviation safety.

Question 4

Which factor has the greatest impact on battery life during a UAS flight?

Accepted Answer

Wind resistance

Answer

Wind resistance, or drag, is a significant factor affecting battery life because the UAS must expend more energy to counteract the force of the wind. Flying against strong winds or in turbulent conditions requires the motors to work harder, drawing more power from the battery. This increased power consumption directly leads to a shorter flight duration compared to flying in calm conditions.

Question 5

What is a common symptom of motor failure during flight?

Accepted Answer

Loss of altitude or control

Answer

A motor failure means one or more propellers lose thrust, disrupting the balanced lift required for stable flight. This imbalance immediately causes the UAS to lose altitude, drift uncontrollably, or even tumble. The drone's flight controller will struggle to compensate, often leading to a rapid descent or crash, posing a significant safety risk.

(RPC) Remote Pilot Certificate Practice Test

(RPC) Remote Pilot Certificate Practice Test

Remote Pilot UAS Loading, Performance & Emergency Procedures