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Thread: fuel tank

  1. #1
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    Default fuel tank

    this might be a stupid question, but is it possible to make a fuel tank out of something like polycarbonate (so its see thru) or will the fuel react with it? discolour it? etc?



    Is there a glue that can withstand fuel?



    just thought it could look quite cool, and be fairly easy to make.




  2. #2
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    Default Re: fuel tank

    Hi,



    years ago you could buy some epoxy putty to repair fuel tanks that had been damaged so there's probably something out there that will do it.



    If you're thinking in terms of being able to check the fuel level then how about a small pipe connected low down on the fuel tank and running up the side?



    If it had a small breather hole in the top then it'd fill with fuel to the same level as the tank.



    Regards

    Peter

  3. #3
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    Default Re: fuel tank

    Like Peter says but its safer to return the pipe into the top of the tank or high up on the side rather than have a open breather.

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    Default Re: fuel tank

    Or you could just by one that has a fuel gage on it already, that's what I did, works with a float inside and has a F-E indicator on the top. Only cost R 150

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    Default Re: fuel tank

    <font face="Arial">the osprey 5 MKII i used to have had a fuel tank as your describing, with a clear window in the side to see the fuel level



    also doubled up as the seat



    as to its construction, hopefully Kip McC could chip in as it was his design originally



    hope this helps



    RoBiN[/COLOR]

  6. #6
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    Default Re: fuel tank

    My osprey 5 has the same window in the side of the tank.

    The window part of the tank is glassfiber with no colour pigment over the window bit, It works well as you just have to look down to see how much fuel is left

    I take it you managed to sell your osprey 5 ok then Robin ,hows the Canair coming along?



    Trev

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    Default Re: fuel tank

    Yep,Your right. All of the larger Osprey craft had GRP tanks.

    At a convenient point we would stick a vertical strip of wide masking tape in the mould. Gel the whole thing with the required coloured gel then remove the tape ASAP. Then when ready clear gel the exposed panel. We removed the poly when the clear gel had gone off.

    Next stage was to lay up 4 x 450 CSM with a large ovelap onto the

    "window" and roll out over a piece of polythene to increase visibility.



    Omitting the window area we then laid up 2 x 450 CSM twice allowing the first layer to go off. This was done to prevent the possibility of a continous air bubble in the lay up.

    The floor was a pre made 1 x 450 CSM part from a seperate mould that was prepared with internal and external pipework fitted.

    This was tacked in place then laid up to a total of 4 x 450CSM again in 2 stages.

    We only ever used general purpose resin and gel and never had problems with the integrity or degradation of the tank.

    Some of them now are well over 25 years old.

    The main think we did was that after fillers had been fitted and all possible debris had been created we thoroughly washed out the tank with petrol.

    The tank was usually at least 1 week old before we used it.

    You cannot beat the simplicity of being able to readily check fuel content with no possible chance of error

    Also of course it is easy to make the size and shape you want.

    The tank in ny own Derriere was made from 1x 450CSM panels laid up on a flat mould, tacked together ,then laid up externally to spec.



    Kip

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    Default Re: fuel tank

    All petrol based solvents destroy polycarbonate. That is why you dont clean your helmet with solvents. Hope that helps.

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