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3 Answers

Where is the missed approach point on an GPS approach

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Instrument Rating

I am trying to determine where is the missed approach point is  on a GPS approach. On an LPV or LNAV/VNAV approach is it the DA/DH?  On a LNAV the MAP is the Runway threshold?  When I was shown GPS LPV approach's I was taught to level off at the DA and execute the missed approach procedure after crossing the runway threshold.  Would someone please clarify my confusion.

3 Answers



  1. Matthew Waugh on Jun 16, 2014

    Whoever showed you GPS LPV approaches was confused. They’d probably confused themselves by reading too many discussions on not starting the missed approach too early.

    On an LPV approach the missed approach starts when you hit DA. The government charts have the dotted line indicating such, I haven’t looked at a Jepp chart in a while, but given their reputation for clarity it’s probably at least as clear.

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  2. John D Collins on Jun 16, 2014

    I agree with Matthew, for a LPV or LNAV/VNAV, the MAP is located at the DA on the GS. For the LP or LNAV, the MAP is typically at the runway threshold, but may be at a named fix other than the runway threshold. On the AeroNav approach charts, the MAP for the LNAV and LP is also shown in the profile view with a vertical line at the MAP.

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  3. Russ Roslewski on Jun 17, 2014

    Though the question itself has been answered, I wanted to comment on the sentence “I was taught to level off at the DA and execute the missed approach procedure after crossing the runway threshold.” This is incorrect.

    An LPV or LNAV/VNAV is no different than an ILS in this regard – when you reach the DA, you go missed unless you have the runway (or other appropriate visual references) in sight. You don’t wait until the end of the runway, which if the DA is high enough, could even be a mile or more away!

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