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Scale Need advice on trailing edge aileron & flap bow on BUSA 1/3 Super Cub

Discussion in 'Giant / Scale Scratch and Kit Build Threads' started by Dave1953, Feb 15, 2019.

   
  1. I am finishing up a wing on this, my first GS build and although I had the aileron pinned down tight on a very flat table I still had some bow in the trailing edge when I unpinned it.. Is there an easy way to correct this before covering ? Thanks to all who respond even if I don't respond to every individual post I do read the all and take them all under advisement.
     
  2. Snoopy1

    Snoopy1 640cc Uber Pimp

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    It is difficult to help or give advice with out seeing the problem the construction of the aileron will dictate how the fix can be done. If you added a couple of pictures it sure will help to understand the problem
     
  3. OK, I will try to take a couple pics tomorrow. My back is killing me from bending over putting on capstrips today or I would do it now.
     
  4. TonyHallo

    TonyHallo 70cc twin V2

    Can you sand it straight with a long sanding bar?
     
  5. No the wood on the trailing edge ain't thick enough for that. Take a look at the pics tomorrow.
     

  6. dhal22

    dhal22 GSN Sponsor Tier 1

    Maybe glue a carbon fiber strip on the trailing edge or skin with sheets of cf?
     
  7. No that's something I know nothing about. If I did that it looks like I would have to do the flap like that too so they would match. The flap TE turned out OK.
     
  8. TonyHallo

    TonyHallo 70cc twin V2

    OK I understand now. It's not flat. In the past I used ammonia the short side, weighted the bow just past flat and let it dry, might take a few tries,
     
    Snoopy1 likes this.
  9. DSCN6871.JPG DSCN6865.JPG DSCN6867.JPG DSCN6865.JPG

    I don't know if this is gonna work but this is the best I can do at posting a pic. Here is the mess I have made. In the shot of the aileron you can see the bow in it. As I have stated before I am blind in my left eye and have poor vision in the other and have only 25 to 30% of my vision left and I can't even see good enough to take a decent picture so that you guys can see what I'm talking about. The use of ammonia is interesting. How much? Soak it or a few drops or what?
     
  10. TonyHallo

    TonyHallo 70cc twin V2

    Just pour it from the bottle to a spray bottle.
     
    Snoopy1 likes this.
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