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  1. #1
    Lock and Load tron's Avatar
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    Aluminum Sponson Blade

    Cut a set of these on the waterjet today, figured I would share
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  2. #2
    Stockrxp's Avatar
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    Are you making backing plates for them as well?

  3. #3
    Duke's Avatar
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    I know RXP6 had a really cool looking set up made and I witnessed it handle very well. They were aluminum with an angle broke in. Not sure if he makes these for other people or not.

  4. #4
    Lock and Load tron's Avatar
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    Quote Originally Posted by Stockrxp View Post
    Are you making backing plates for them as well?
    No backing plates, I bought a set of Riva backing plates from a member on here that had misplaced the blades. So I had some scrap 3/8" layin around and figured I would just make my own.

    Quote Originally Posted by Duke View Post
    I know RXP6 had a really cool looking set up made and I witnessed it handle very well. They were aluminum with an angle broke in. Not sure if he makes these for other people or not.
    Hmmm....I'll have to see if I can find them, It sure wouldn't be hard to manipulate the blade size / shape now that I have the mounting holes dialed in CAD.

  5. #5
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    You can go 1/4" thick on the blade...I did, worked well.

    If you go aluminum backing AND blade, then any impact will be transmitted directly to the hull...OUCH. From making sponson sets for years I would recommend doing the backing out of aluminum, but cut the blade out of thick plastic, like 1/2"...That way the blade will break/crack and absorb the hit...Its easier (and cheaper) to unbolt and replace a blade than it is to do hull repair...

  6. #6
    Duke's Avatar
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    Quote Originally Posted by tron View Post
    No backing plates, I bought a set of Riva backing plates from a member on here that had misplaced the blades. So I had some scrap 3/8" layin around and figured I would just make my own.


    Hmmm....I'll have to see if I can find them, It sure wouldn't be hard to manipulate the blade size / shape now that I have the mounting holes dialed in CAD.
    Shoot him a PM. Frank might have a picture.

  7. #7
    ADAMBOMB's Avatar
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    Quote Originally Posted by Duke View Post
    I know RXP6 had a really cool looking set up made and I witnessed it handle very well. They were aluminum with an angle broke in. Not sure if he makes these for other people or not.
    They are impressive! But there classified

  8. #8
    guys im in a situation were i have the blades but no backing plate what you think i should do?

  9. #9
    captain slow Turbo Retro's Avatar
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    Quote Originally Posted by 270rxp View Post
    guys im in a situation were i have the blades but no backing plate what you think i should do?
    we use all our own sponsons here in oz which are made by an engineering firm.. they are not cheap. the backing plate is a nylon type material with aluminium blades... we have been running them for years...

  10. #10
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by Danny View Post
    You can go 1/4" thick on the blade...I did, worked well.

    If you go aluminum backing AND blade, then any impact will be transmitted directly to the hull...OUCH. From making sponson sets for years I would recommend doing the backing out of aluminum, but cut the blade out of thick plastic, like 1/2"...That way the blade will break/crack and absorb the hit...Its easier (and cheaper) to unbolt and replace a blade than it is to do hull repair...
    Why not go with riva or nylon backing plate and aluminum blades?
    Don't see why that would not work.

    On the bare aluminum would it be best to coat with something?

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