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Thread: Building the worlds fastest fpv plane

  1. #131
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    Quote Originally Posted by Channel 1 View Post
    By the way what kind of resin are you using?

    Wayne
    Its supposedly a high end laminating epoxy:
    http://www.carbix.se/product.html/ep...category_id=25

  2. #132
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    Quote Originally Posted by Håvard Støre View Post
    Its supposedly a high end laminating epoxy:
    http://www.carbix.se/product.html/ep...category_id=25
    You might want to research Vinyl Ester resin, it is just about as strong as epoxy resin but is considerably stiffer, wets easier and is usually less expensive both for the product and shipping as it is kicked with MEKP at a 1% ratio of MEKP to resin lowering the shipping weight versus 1-1, 2-1 or 3-1 epoxy.

    Vinyl Ester is used extensively in the aircraft and marine industries with both fiberglass and carbon fiber fabric.

    It is also UV resistant which epoxy isn't.

    Wayne
    Last edited by Channel 1; 15th January 2017 at 01:18 PM.
    Everybody loves a bunny.

  3. #133
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    Thanks bro:-) I will have to read up some more on that, but the fumes seem to be the deal breaker.

  4. #134
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    Quote Originally Posted by Håvard Støre View Post
    Thanks bro:-) I will have to read up some more on that, but the fumes seem to be the deal breaker.
    Oh yea, ventilation is required.

    I'm recoating a 40 meter fiberglass vertical with it now and it is definitely an outdoor in the fresh air job.

    Click image for larger version. 

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    Wayne
    Everybody loves a bunny.

  5. #135
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    Will you use it as an antenna mast?

  6. #136
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    Quote Originally Posted by Håvard Støre View Post
    Will you use it as an antenna mast?
    That's an actual antenna pulled from a cargo ship, it's a cage antenna the radiator consisting of four copper strips laminated to the inside of the fiberglass tubing with a length of 34.25 feet. The idea of using multiple radiators' is to lower the Q therefore increasing the bandwidth of the antenna.


    I'm going to pour a concrete slab out in the SW corner of my yard clear of the power lines and will mount this to tilt base so it can be lowered should a hurricane head this way. It works out to be a 1/8 wave at 80, a 1/4 wave at 40, a 1/2 wave at 20, and a full wave at 10, so hopefully with a remote antenna tuner I can work all those band with 1 vertical antenna and use my 260' folded dipole for horizontal.

    Wayne
    Everybody loves a bunny.

  7. #137
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    Nice thread Håvard! Looking forward to follow you on maiden this slick build of yours. If you need HD video from an following Rvjet in air....let me know

    Very nice work btw!

    Rolf Hult

  8. #138
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    Quote Originally Posted by rolf hult View Post
    Nice thread Håvard! Looking forward to follow you on maiden this slick build of yours. If you need HD video from an following Rvjet in air....let me know

    Very nice work btw!

    Rolf Hult
    Lets do that, but not on the first couple of flights.

  9. #139
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    Aren't those spars too flexible? I would have thought that carbon fibre would have been more suitable.

  10. #140
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    Quote Originally Posted by Implicit View Post
    Aren't those spars too flexible? I would have thought that carbon fibre would have been more suitable.
    I will add more glass if I feel that its necessary. The spars are only there to prevent the top skin from moving in relation to the bottom skin. It will become clearer when you see them in place. About carbon.... A lot could be gained by making the plane (main skin of the plane) out of carbon, but I wont do it because of RF penetration. The spars could be made from plywood,balsa or even dense foam.

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