Words for: Departures, En Route & Arrivals
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A code you put on your flight plan, right after the aircraft type, that tells ATC your airplane has an approved GPS for IFR flying and a transponder that reports altitude.
An aircraft equipment suffix, appended to the aircraft type on an IFR flight plan, indicating that the aircraft is equipped with a GPS (or GNSS) navigation system that meets the FAA's required performance standards for IFR use, in addition to a Mode C transponder.
Seen on IFR en route low altitude charts next to published route altitudes.
The letter 'G' was chosen as shorthand for GPS. The FAA assigns single-letter equipment suffixes (A, B, G, R, W, etc.) so a flight plan can quickly tell ATC what navigation and surveillance gear is on board.
It confirms whether GPS navigation can be used to that fix and whether the aircraft’s GPS equipment must be operational for the route segment.
The G does not mean “ground” or “general.” On this chart, it points to GPS/GNSS use for that published altitude.
She filed her Cessna 182 as C182/G because the airplane has a panel-mounted IFR-approved GPS and a Mode C transponder.
When reviewing the low altitude chart for an IFR flight, the presence of a G suffix on several fixes confirms GPS routing is available.