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Ron Gray

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Posts posted by Ron Gray

  1. A lot depends upon how ‘dry’ the POR is before bringing the pieces together. If it’s touch dry then it’s an instant bond with no wiggle room, if it’s slightly tacky then it’s still a bond but you can move the parts a little bit. The real test, for me, was when I used to use Velcro to position batteries in my models. I stuck it on using POR but found that the strongest bond which kept the battery Velcro in place was formed when I let the POR completely dry before bringing together. I stopped using velcro a couple of years ago and use ‘anti-slip’ material instead.

  2. IMO the main advantage of contact adhesive is that there is no, or very little, need for pinning / clamping. A few years ago I applied POR to 2 surfaces slid them together to make sure that I had an even coating them pulled them apart and promptly forgot about them for about a day! I contacted (no pun intended) someone at UHU to ask them if this would be a problem and the reply was no, but make sure that they are perfectly aligned as you won't get any wriggle room. They were right!

  3. 52 minutes ago, Nigel Heather said:

    I have some Gorilla glue to, bought for DIY rather than modelling, it is brown but not sure it is the specific one you mean.  It is quite runny and expands when it cures - is that the one you mean.

    Yes, that’s the one. As Leccy says above, it will expand/foam when setting so plonk a weight on the ply to keep it in place.

    • Like 1
  4. 15 minutes ago, Geoff Gardiner said:

    it turned out a bit heavy

     

    15 minutes ago, Geoff Gardiner said:

    a nasty tipstall incident

    Typical of most Mossies I've seen and heard of, apart from my little cartoon one that is! Note square fuse, well square everything really yet it still looks like a Mossie.

     

    IMG_8445.thumb.jpeg.d5742f8a5e9e55f6a75357d780a2a81e.jpeg

    • Like 2
  5. 1 hour ago, Martin Gay said:

    so how about a twin Mustang

    Too much building imo, having to build 2 fuselages may put off a lot of people, same with the P38, 2 booms to build. 

    • Like 2
  6. 6 minutes ago, toto said:

    I believe its part of the A test so not just some fancy " would like to have " manoeuvre or set piece.

    Nope! the A test will require you to fly a reversed circuit, in other words if you have been flying clockwise circuits then you will be required to fly one anti-clockwise, in doing so you may well perform a procedure turn but not necessarily so. The only stipulation is that the initial turn to reverse the circuit must be away from the pilot's box.

    • Like 1
  7. On 15/04/2024 at 18:15, Jon H said:

    but they simply havent a clue what they are talking about.

    Too true Jon, neither of mine, the 200 or the 310, have excessive vibration, in fact the 310 is quite smooth. I flew my 310 powered Giant Revolver again last Friday, the first time for a few months, and re-aquatinted myself with the awesome power and lovely sound. Hopefully take it out again tomorrow as I had a spare prop in the prop drawer!

    • Like 1
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