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  1. KykPhantom

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    I would like to know if there is a way to limit the speed of the Phantom 4, let's say at 15m/s, during sports mode?
     
  2. stefan350

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    Why not just switch off sport mode?


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  3. msinger

    Approved Vendor

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    That's not possible.
     
    #3 msinger, Jun 6, 2016
    Last edited: Jun 6, 2016
    zacksomeone likes this.
  4. richwoodrocket

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    You might to be able to do it physically, making something to limit the stick movement. There is no option to do this in DJI Go afaik
     
  5. stefan350

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    Why you go in sport mode if you don't want the speed?


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  6. KykPhantom

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    The reason is that, by experimenting, I noticed that drainage of the battery is less if the speed is about 15m/s.This has to do with the efficiency of the motors. 1 km distance with 15m/s requires about 5-6% of the battery. If the speed is 10m/s or 20m/s the battery required is about 8% per km. The conclusion is that, if you want to extend the range of the drone, speed has to be around 15m/s.
     
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  7. KykPhantom

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    Thank you for the advice.
     
  8. RémyHeli

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    What about reduce the throttle down in Go App expo settings?


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  9. RémyHeli

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    Actually increase throttle expo to temper motors/consumption. It's a very common settings with helicopters.


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  10. Meta4

    Meta4 Moderator
    Staff Member

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    Turn off object avoidance and use P-GPS mode and your speed will be limited to 15 m/s - just like a P3.
     
  11. KykPhantom

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    The question is, at what speed the motors are most efficient so the current drawn from the battery is "low" and obviously the temperature of the battery will be lower and effectively the life time of the battery is higher.
     
  12. KykPhantom

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    Thank you, I will try that.
     
  13. stefan350

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    One does not simply go into sport mode to save battery...


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  14. Erised

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    Many long range pilots in this forum post that 30-32 mph is the sweet spot.
     
    rosgo likes this.