UAG Navigation and GPS Systems 3

Question 1

What is geofencing in the context of UAS navigation systems?

Accepted Answer

Virtual geographic boundaries programmed to restrict UAS flight to defined areas

Answer

Geofencing uses GPS coordinates to create virtual boundaries that automatically prevent or warn UAS from flying into restricted areas such as airports or sensitive locations.

Question 2

A UAS 'Return-to-Home' (RTH) feature relies primarily on which navigation technology to find its launch point?

Accepted Answer

GPS coordinates recorded at launch

Answer

RTH functions by using GPS to record the launch coordinates and then navigating the UAS back to those stored GPS coordinates when triggered.

Question 3

Before conducting a UAS flight mission, what pre-flight check should a remote pilot perform regarding GPS?

Accepted Answer

Confirm GPS signal acquisition with an adequate number of satellites and check for relevant GPS NOTAMs

Answer

Before flight, pilots should verify the aircraft has acquired sufficient satellites for accurate positioning and review NOTAMs for any GPS outages or anomalies in the operating area.

Question 4

What is the primary purpose of GPS waypoints in UAS mission planning?

Accepted Answer

To define predetermined geographic coordinates that guide autonomous flight paths

Answer

GPS waypoints are specific geographic coordinates programmed into the UAS flight controller to define the route and actions for autonomous or semi-autonomous missions.

Question 5

What is compass deviation (as opposed to magnetic variation) in UAS navigation?

Accepted Answer

The error in a compass caused by magnetic fields from the aircraft's own electronics or structure

Answer

Compass deviation is the local error in a magnetic compass caused by electromagnetic interference from the aircraft's motors, wiring, and electronics, requiring a compass calibration correction.

UAG - Unmanned Aircraft General Practice Test

UAG - Unmanned Aircraft General Practice Test

UAG Navigation and GPS Systems 3