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Speed (MPH) question

Discussion in 'Pro/Adv Discussion' started by purehess, Dec 31, 2015.

  1. purehess

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    I have read that the Phantom 3 is electronically limited to 35 mph, in my DJ Go app the flight record playback has a H.s. MPH, and a V.S. MPH and that recorded top speed of 47 MPH. At first i thought maybe it was meters per second, but why the "MPH" unit of measure? Alos what is HS vs VS.
    Thanks
    Hess
     
  2. snerd

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    Horizontal and Vertical speed.
     
  3. purehess

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    Thankyou. So did i go 43MPH like the pic of the app says?
     

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  4. snerd

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    Possible with a good tailwind.
     
  5. snerd

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    My record is 51.3mph.
     
  6. Meta4

    Meta4 Moderator
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    Probably not.
    Your app is showing 43mph for horizontal and vertical speed and the only way a Phantom can achieve that rate of descent is if it's free falling (even then it probably wouldn't exceed 38 mph).
    Something's not right with those numbers. Ignore them and check next flight.
     
  7. purehess

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    Ok, that was a horizontal straight line flight, will a slight tail wind.
     
  8. ParsnipHysorter

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    Yes indeed, a stiff tail wind will push it well over 35. I've also had mine above 50 MPH.

    As Meta4 mentioned the V.S. showing 43 is weird, something not right with that. But H.S. of 43 is not abnormal with a tailwind.