Question

During normal operation, the calculated FMS position is based on:

a) GPS data
b) VOR/DME data
c) IRS data
d) All of the above

Answer 1

The calculated FMS position during normal operation is based on GPS data, VOR/DME data, and IRS data.

Step-by-step explanation:

The calculated FMS position during normal operation is based on all of the above: GPS data, VOR/DME data, and IRS data.

GPS (Global Positioning System) data uses satellites orbiting the Earth to determine the receiver's position accurately. VOR/DME (VHF Omnidirectional Range / Distance Measuring Equipment) data is used for navigation by measuring the distance and direction from a radio transmitter. IRS (Inertial Reference System) data is obtained from on-board sensors that measure acceleration and rotation to determine the aircraft's position.