How does GPS assist modern navigation?

How does GPS assist modern navigation?

• A. Provides precise three-dimensional position and velocity data for enroute, terminal, and approach phases.
• B. Supplies only two-dimensional position with no velocity.
• C. Only velocity data with no position information.
• D. Predicts weather along the route.

Answer: (A)

GPS assists modern navigation by delivering precise three-dimensional position and velocity data. This means the system provides exact location in terms of latitude, longitude, and altitude, and also the aircraft’s velocity vector—how fast and in what direction it’s moving. This information is available continuously across all flight phases: enroute, terminal, and approach, so flight management systems, autopilots, and navigation displays can guide the aircraft reliably from takeoff to landing. GPS also gives accurate time synchronization, which is essential for coordinating systems and procedures. It’s not limited to two-dimensional position or to velocity alone, and it doesn’t predict weather.

GPS assists modern navigation by delivering precise three-dimensional position and velocity data. This means the system provides exact location in terms of latitude, longitude, and altitude, and also the aircraft’s velocity vector—how fast and in what direction it’s moving. This information is available continuously across all flight phases: enroute, terminal, and approach, so flight management systems, autopilots, and navigation displays can guide the aircraft reliably from takeoff to landing. GPS also gives accurate time synchronization, which is essential for coordinating systems and procedures. It’s not limited to two-dimensional position or to velocity alone, and it doesn’t predict weather.