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3 Answers

G1000 when intercepting and tracking with GPS.

Asked by: 5770 views General Aviation, Instrument Rating, Student Pilot

Whenever I fly on G1000 C172s, and practice GPS intercepting and tracking, the 'mode' keeps on changing between TERM and ENR. I know both of them have different sensitivities but not sure based on which criteria does that change all the time.

Connor.

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3 Answers



  1. John D Collins on Oct 19, 2016

    TERM is the annunciation for Terminal mode CDI sensitivity with a Full Scale Deflection of +/- 1 NM anytime the aircraft position is within 30 NM of the departure or destination airport. ENR is annunciation for Enroute mode and is +/- 2 NM FSD for the WAAS system or +/- 5 NM for the non WAAS system. It is set anytime the aircraft is more than 30 NM from the departure or destination airport.

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  2. connor on Oct 20, 2016

    Yes, but when you intercept and track from a fix or waypoint on FPL page, you are not setting the airport ID. So how would G1000 know you are 30nm away/within the aiport?

    Connor.

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  3. Best Answer


    John D Collins on Oct 21, 2016

    If you don’t have any airports in your flightplan and are not navigating direct to an airport, the system will annunciate ENR. If there are airports included in your active flightplan route, what point you are navigating to or course you are intercepting is not relevant, only the distance to the departure or destination airport is relevant as defined in your active flightplan, inside of 30 NM, the system will annunciate TERM, outside ENR.

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