GNSS provides three outputs used in flight operations. Which trio is correct?

GNSS provides three outputs used in flight operations. Which trio is correct?

• A. Position, navigation, and timing
• B. Altitude, airspeed, and attitude
• C. Wind, temperature, and pressure
• D. Heads up, speed, and altitude

Answer: (A)

Global Navigation Satellite System is used to provide Position, Navigation, and Timing. It gives your geographic position (latitude, longitude, and often height), supports navigation by supplying track and distance to a waypoint to follow a route, and offers a precise time reference that all aircraft systems can share and synchronize to. Altitude, airspeed, and attitude come from other sensors such as the altimeter, air data system, and attitude indicators, not from GNSS directly. Environmental data like wind, temperature, and pressure are measured by separate sensors, and “heads up” is not a GNSS parameter. So the trio of position, navigation, and timing is the correct set of outputs from GNSS used in flight operations.

Global Navigation Satellite System is used to provide Position, Navigation, and Timing. It gives your geographic position (latitude, longitude, and often height), supports navigation by supplying track and distance to a waypoint to follow a route, and offers a precise time reference that all aircraft systems can share and synchronize to. Altitude, airspeed, and attitude come from other sensors such as the altimeter, air data system, and attitude indicators, not from GNSS directly. Environmental data like wind, temperature, and pressure are measured by separate sensors, and “heads up” is not a GNSS parameter. So the trio of position, navigation, and timing is the correct set of outputs from GNSS used in flight operations.