RPC sUAS Loading and Performance 2

Question 1

A remote pilot adds a 0.5 lb camera payload to a sUAS originally configured for 0.3 lb. What is the most likely effect on flight performance?

Accepted Answer

Reduced flight endurance and slower climb rate

Answer

Adding payload increases total weight, which demands more power from motors, reducing battery endurance and climb performance.

Question 2

Which condition would most significantly degrade sUAS hovering efficiency?

Accepted Answer

Operating at high density altitude with maximum payload

Answer

High density altitude means thinner air, requiring rotors to spin faster to generate the same lift, increasing power consumption and reducing hover efficiency.

Question 3

An sUAS manufacturer specifies a maximum gross weight of 3.5 lbs. The airframe weighs 2.8 lbs with a fully charged battery. What is the maximum allowable payload?

Accepted Answer

0.7 lbs

Answer

Maximum allowable payload = maximum gross weight minus airframe weight: 3.5 - 2.8 = 0.7 lbs.

Question 4

How does an off-center payload mounted to the front of a multirotor affect its flight characteristics?

Accepted Answer

The aircraft will tend to pitch nose-down and require corrective trim

Answer

A forward-shifted center of gravity causes a nose-down pitch tendency, which the flight controller must constantly counteract, wasting power and reducing control authority.

Question 5

In hot and humid summer conditions, a remote pilot should expect which performance change compared to standard conditions?

Accepted Answer

Reduced lift because high temperature and humidity lower effective air density

Answer

High temperature and humidity reduce air density (increasing density altitude), which decreases rotor efficiency and requires more power to maintain lift.

(RPC) Remote Pilot Certificate Practice Test

(RPC) Remote Pilot Certificate Practice Test

RPC sUAS Loading and Performance 2