launch heavy fpv plane

Posted by Damo on November 28, 2014 at 3:42pm

I have put together a long range capable finwing penguin with 2 x 5000 mah batteries + ezuhf video equipment. I have to get a friend to hand launch it but its quite difficult to get right. I would say it takes 3 attempts to get it launched. Given that i dont want to reduce the battery capacity or weight is there a reliable and easy way to launch? 

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Replies

  • Stephen Gloor November 28, 2014 at 6:43pm

    Also what motor are you using?  I use an NTM 3536 910kV with 4S battery and 10X6 prop for the weightlifter.  I have 11" props to use however I have not used them yet.  I have a custom motor mount for this plane that allows greater prop diameter.  The weightlifter has a wire undercarriage and large wheels to take off from uneven ground.

    For the other stock one I have I use a NTM 3536 1400kV with 3S or 4S batteries and a 9X6 prop.

    You are not using the prop that came with the plane are you?

    • Damo > Stephen Gloor November 29, 2014 at 1:17am

      I am using the stock upgraded motor and prop that come with the finwing

  • Bret C November 28, 2014 at 6:14pm

    This launcher works well:

    http://youtu.be/bptM-XRdLCU

  • Stephen Gloor November 28, 2014 at 4:05pm

    You could try a short bungee.  Put a towhook in the wood between the wheels and use about 20m of elastic tube stretched back about 20 paces.

    If you have an APM in it try the combination of bungee and auto take off.  The APM does a really good job of take off if you get the parameters right.

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