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Ascend before RTH?

Posted by Spencer Shepard on June 24, 2015 at 10:08am

I'm flying in mountainous terrain.  What is the expected behavior in a failsafe event, when my RTH altitude is higher than current altitude?  Fly towards home while ascending?  Or can we circle until the RTH altitude before returning?

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  • Jason Franciosa July 1, 2015 at 8:32am

    +1 for terrain following. Also, you can set Rally Points (I believe their called) so it will go to the closets one and follow that path home in the event of a RTL if you can't do terrain following or don't have terrain data.

  • Jason Franciosa July 1, 2015 at 8:32am
    +1 for terrain following. Also, you can set Rally Points (I believe their called) so it will go to the closets one and follow that path home in the event of a RTL if you can't do terrain following or don't have terrain data.
  • Scott Pritchett June 25, 2015 at 8:04am

    If you do a commanded RTH, it will turn immediately toward home then start to ascend.  If you're flying in a mountainous area, I highly recommend you use the terrain following feature to avoid flying into a hillside.

    • Spencer Shepard > Scott Pritchett June 25, 2015 at 10:45am

      Thanks for the reply, Scott.  Is the behavior the same for a failsafe RTH? 

      I'm using APM 2.6 so I guess I'm out of luck on terrain following.

      • Scott Pritchett > Spencer Shepard June 29, 2015 at 6:59pm

        Failsafe RTH will first circle for the "long fs timeout" time, then engage RTL which does what I said above.

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