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  1. #26

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    RE: Ultra Spad Stik 4 mil wing?

    Where can I get the plans for one of these I would like to build one around a dle 30 or a dle 55

  2. #27

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    RE: Ultra Spad Stik 4 mil wing?

    This should get you to the plans:

    http://search.rcuniverse.com/search....archwhere=both

    Sincerely, Richard

  3. #28
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    RE: Ultra Spad Stik 4 mil wing?


  4. #29

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    RE: Ultra Spad Stik 4 mil wing?

    A removable fuselage cover.
    I'm sure I'll need to add some weight in the back.

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  5. #30

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    RE: Ultra Spad Stik 4 mil wing?

    Guess I'll put screws in the motor mount area to fuselage.
    $8.00 foam safe ca woes.
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  6. #31

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    RE: Ultra Spad Stik 4 mil wing?

    Got half a wing glued.
    Clamped channel iron onto the tablesaw to cut the 1 1/4 by !/4 to get
    the spars cut finally

    Thanks Carl for the motor. Funny story with the motor. It went from GA to NJ and then
    back to GA.

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  7. #32

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    RE: Ultra Spad Stik 4 mil wing?

    Made a measuring error found it.
    Bottom wing panel I went too long on. Don't know how that happened, because it was a big measuring goof.
    When I tried a test fold of the upper the ca again tore apart even
    after scoring well on the upper wing panel.
    Have been sanding and cleaning the surfaces with the degreaser and alowing degreaser to dry.
    Fuselage fixed with screws.
    All wing panels glued with goop this time.

  8. #33

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    RE: Ultra Spad Stik 4 mil wing?

    Goop or contact cement should work, but there is a process called plasma treatment that changes the surface tension of the surface molecules to allow effective bonding . Check with the SPAD website for this, although I don't know if anyone does it anymore. It involves passing the flame of a torch over the surface, but not to melt it, just to ionize it. The manufacturers of the plastic do it so that paint and ink and adhesives will stick to the polypropylene, but the treatment is uneffective after a while. The manufacturers use a plasma field to accomplish the surface change. Good luck

    Sincere best wishes for a Happy Holiday Season and Merry Christmas to one and all.

    Richard

  9. #34
    PatrickCurry's Avatar
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    RE: Ultra Spad Stik 4 mil wing?

    Hey Joel, how fresh is your CA?  Some folks report that older CA doesn't hold as well where fresh sticks like crazy.  You might try a fresh bottle and see what you get.

  10. #35

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    RE: Ultra Spad Stik 4 mil wing?

    Woodpecker the area to glue and mix up poly glue with a drop or 2 of water, apply the glue & clamp.
    Wipe up any over flowing foam.

    It takes 3 or 4 hrs to setup enough to work on the next piece and 24hrs to cure completely so it's not as fast as CA, but it works every time.

    Jeff

  11. #36

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    RE: Ultra Spad Stik 4 mil wing?

    Went ahead and did goop and letting it sit for the 72 hours.
    Started some fitting inside to figure where to put servos.
    Made some tentative pieces to fit inside and just realized I forgot to plan a spot for a gas tank, so
    one more thing to figure out.
    Can the tank be placed towards the rear of the fuselage just back from the trailing edge of the wing?
    I have to rearrange some screws to put it just back of the motor, if that would be better.

    Got some leftover rc heli tanks, I put gas on the rubber grommets and they haven't melted or seemed to
    have reacted to the gas so are they safe to use?

    If anybody has some 4" wheels and a tail wheel they can sell please let me know.



  12. #37

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    RE: Ultra Spad Stik 4 mil wing?

    Progress pics and need some help advice on what to use for pushrods.
    I got stainless steel welding rods and figured I 'd install some servos and
    horn to see if they would break when I put a load on the elevator.
    PUSHROD BENDING AFTER I THOUGHT I FOUND A NEAT PLACE TO INSTALL THE SERVOS.
    HELP IF ANYONE IS STILL FOLLOWING THIS !!!!!!!!!!!!!!
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  13. #38

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    RE: Ultra Spad Stik 4 mil wing?

    Yes, I am still here and enjoying your build.

    You will need to add guides in several places to support the pushrods and to keep them from bending. The SS welding rod I am sure is strong enough, but may not be hard enough not to bend even if supported. Another approach is to use dowel pushrods, or better, carbon fiber or fiberglass arrow shafts. I pay less than $1.50 for a carbon fiber arrow at Walmart, and they do not bend. Another approach is to use pull-pull, with control horns on both sides of the surface and braided wire or Kevlar cord to move the surface.

    Looking real good, you are getting real close. I really like some of your ideas and innovations. That is what I really like about our hobby.

    Sincerely, Richard

  14. #39

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    RE: Ultra Spad Stik 4 mil wing?

    Walmart sold out of the carbon fiber arrows. But on the bright side I scavenged some decent sheet
    metal scraps to use.

    Makes me think how tough it must have been for the Wright brothers.

    Something to think abou,t their plane I think 1904 to what we have now in the space shuttle.

  15. #40

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    RE: Ultra Spad Stik 4 mil wing?

    Progress milestone fuselage braces and hor elev braces, and all scratch build day.
    Guess what the wire clamps are and win a prize !
    Scratchbuild days are funnest of all as long as the blood loss isn't too high !
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  16. #41

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    RE: Ultra Spad Stik 4 mil wing?

    On the dihedral main spar assembly hers a way to clamp and screw the
    middle spar reinforcer if you didn't get it exactly right in cutting
    the angled portion.
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  17. #42

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    RE: Ultra Spad Stik 4 mil wing?

    Here's a work around if you want a collet and can't find one.
    All 3 hardware stores here don't have collets that are rc sized.
    if you want one for a certain size then if you have access to a drill press you can make it.
    Take a piece of rod 1/4 inch would be easiest, cut and then center as best you can in a drill press.
    Drill small hole for pilot. Then you can do the bigger hole .
    I tried a quik one yesterday and didn't get it quite centered.
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  18. #43

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    RE: Ultra Spad Stik 4 mil wing?

    Physics question.
    What's a simple brace you can make for the landing gear on the 45 degree spots preferably
    non welded since I would have to go 100 miles to use a tig machine.
    I did visit a local FAA certed shop yesterday and they would charge $200-$300 to weld the gussets on since it would need to
    have FAA certification due to them being FAA certified.
    So that's out as an option.

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  19. #44

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    RE: Ultra Spad Stik 4 mil wing?

    I have some carbon fiber 1/8 rod coming, nobody close by has carbon fiber rod. Also none of the stores
    here sell hollow tubing that is suitable for rc, smallest size rods I found are electrical conduit.
    And since the cheapest carbon fiber arrow tubes are $7.95 I am still thinking about how to reinforce the 1/16 welding rod.
    The rod seems to bend in a particular spot on both sides about the same distance. It would seem to me that you could solder
    a small brace in 2 areas so that the flexing would stop.

    I would like to figure this out because if anybody else is out in the middle of nowhere like me and just has
    to have a pushrod now, then it would be nice to have a workaround until you could order some carbon fiber.
    the desired pushrod brace would be attached to the pushrod only and not braced on the fuselage. The pushrod
    would be attached to the servo and control horn only.
    If somebody has the physics know how to suggest an idea you could give me a hint rather than tell me how to do it
    because I like to figure it out.

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  20. #45

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    RE: Ultra Spad Stik 4 mil wing?

    Captains log: Stardate 2010.
    My phone fell into a cup of coffee.
    Got the motor on to see how it looks.
    Both spars on bottom of wing Progress is good.
    Anybody got a design idea, here's a pic.
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  21. #46

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    RE: Ultra Spad Stik 4 mil wing?

    And another funny story.
    Walk into a local FAA shop that makes aircraft components.
    Ask to see somebody that can suggest where to reinforce my latest landing gear idea.
    I said" I have an aeronautical question".
    The fellow replied, "can you spell aeronautical ?".
    I said, shore can, "a-e-r-o-k-n-o-t-i-k-a-l ".
    Long story short, I got to see their inhouse guy and he spent alot
    of time looking at the design and making some good suggestions.
    So, the story had a happy ending, you'all.

  22. #47

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    RE: Ultra Spad Stik 4 mil wing?

    Here's an idea to assemble and bend the 3mm aluminum bar into
    a nice landing gear.
    You're thinking, why would I build somthing like this to bend 3 mil aluminum?
    Because it's hard to bend and I don't have a vise set up yet, and you set up the smaller blocks to
    do some of the bending, you use the little blocks to bend with, you still have to do
    some metall beating but the jig keeps the shape and angles in the right places.
    (Got 2 quotes to make 4 bends.
    $300 at one place and $75 -$100 an hour at the second place.)
    Ok, get some 2x4 and start cutiing.
    Assemble a 45 degree inner bend portion into 2 legs 45
    degrees and the top I went with 3 1/2 inches portion
    that goes to fuselage.
    Legs are 12 1\2 inches and wheels 3 1\2 which is an
    estimate since the wheels aren't here to see what Ineed there.
    Cut up lots of 5 inch blocks to clamp with.
    Pictures show the unit. clamp first bend starting left.


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  23. #48

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    RE: Ultra Spad Stik 4 mil wing?

    I'm still so pissed at all the work to bend the landing gear that I
    got a touch of love hate and irritated that the coro can be tough to work with and on and on.
    Got sick of looking at the inside of the fuselage with the crooked yardstick that I put in to align the tail and
    get the horizontal surface to track straight or at least look straight.
    Used all the high tech tools at my disposal as you can see.
    I swear, if I win the lottery after helping needy people, I'll get a decent tool or two.
    So here's what my feeble brain came up with to cover the inside and also block what will be the gas tank area.
    If i get some gas leakage I was thinking to cover the radio area from the gas area. Hmm, what to use. Got some coro made a gasket by cutting a flute trimmed one
    longitudinal flute and bent the other back and I got a neat gasket effect.

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  24. #49

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    RE: Ultra Spad Stik 4 mil wing?

    I got the hang of flashing the coro and once you get it it is unbelievable.
    The ca sticks like i don't know what. If you hold the coro up and let some light
    shine on it at an angle and torch it you can see the change in the plastic.
    I tried alot of different techniques to be able to see the change and nothing worked until I
    could get the right angle.
    It's worth burning up some pieces to figure it out.
    I still sand and degrease and once it's flashed the stuff stays stuck !!

  25. #50

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    RE: Ultra Spad Stik 4 mil wing?

    Glad to hear the heat treatment works for you. Helps keep things stuck together. I will check and see if walmart has any $2.00 carbon fibre arrows left. If they do I could send you some. Let me know.

    Happy New year.

    Sincerely, Richard


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