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  • Watch "Quadcopter landing on water" on YouTube
    https://www.youtube.com/watch?v=3BDch05XrB0&feature=youtube_gda...

    Watch in HD
    YouTube
  • at the very least, make the diameter of the arms smaller and reduce that lip.

    you can even angle the lip down to allow air flow.

    If you want stability in free fall and in flight you should make the arms into a banana shape so that the bottom of the motors is above the top of the center, when falling the multirotor wont flip and the props will act as drag.

    when in flight the lower cg will keep the copter stable increasing flight times.

  • Thanks for the info Jared . We are happy with the current flight times and the wind tunnel testing has show that we are losing some push but it's a comprise we are willing to take in order to have a this frame waterproof and still hold its weight on the water in order to take off.
    Thanks again,
    Charlie
  • weight is nothing to do with it, you have taken about 40% or the airflow and thrust from the prop and and forced it sideways because of the bloated frame, the air goes sideways into the downward airflow creating turbulent air under the prop and 40% less power from the motors than most frames which are in the realm or 5% or even less from under mounting the motor.

    you are likely loosing a huge chunk of flight time! 20mins is good but it could be longer, if it really is 20, but that setup 20 mins sound unlikely with that frame

  • Actually the frame weights 190gm so I'm getting 20 min flights .I think that's decent with a 2200 mah and 11" props
  • looks very very very inefficient

  • Nice!

    Now the flight modes can be extended with a submarine mode... :-)

  • Awesome!! Any info on it?
  • I will be in next couple weeks ^_^
  • Amazing!!!  Are you selling RTF Versions anywhere?

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