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  1. #26

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    RE: Dumas 36

    Ok guys,
    I have coated the inside of the hull with a nice coat of epoxy resin before I do any cockpit work. Just makes it easier to waterproof everything before it gets closed up. I use Envirotex Lite epoxy, works great for glass cloth and sealing.
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  2. #27

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    RE: Dumas 36

    Fred,

    Noticed that you have a new follower/admirer over on the Lobster Boat build.

    Great work on the runabout. Maybe it is easier than I thought?

    Bob

  3. #28
    Kmot's Avatar
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    RE: Dumas 36

    Never heard of that epoxy before. But now that I have I am interested in trying it.

    http://eti-usa.com/envirotex-lite/
    ~Tom~

  4. #29

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    RE: Dumas 36

    Hi Bob,
    Glad to see you checked in. I say go for the build.
    Tom,
    I've been using this for years. Great stuff.
    Thanks,
    Fred

  5. #30

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    RE: Dumas 36

    Framework for the cabin area installed as well as the forward sheeting on the hull.
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  6. #31

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    RE: Dumas 36

    Cabin sides installed, floor is placed in but not glued. This is removable to access radio gear. Bottom kick panel installed.
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  7. #32
    Deathwish's Avatar
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    RE: Dumas 36

    looking good . What are you going to power it with?

  8. #33
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    RE: Dumas 36

    Fred, a 540 can would be good. I have a Traxxas (stinger) in my sterling century,runs good Larry
    America home of the free,thanks to the brave

  9. #34

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    RE: Dumas 36

    Guys,
    I have a 550 Goldfire airplane motor. Will this work?
    Thanks,
    Fred
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  10. #35
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    RE: Dumas 36

    Do you know how many turn's it is?

  11. #36

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    RE: Dumas 36

    No, I don't. How do you determine that?
    Thanks,
    Fred

  12. #37
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    RE: Dumas 36

    Some motor's tell u on the side. not sure on your's since it's for a plane.

  13. #38

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    RE: Dumas 36

    I found the following information on the "Goldfire 550 Motor":

    Great Planes S-600 7.2-8.4 Volt Ferrite Motor
    Former Goldfire Motor 05 (550)
    Windings: 19 turns of .80mm wire. Timing: + 3 degrees Resistance: .37 ohms
    No Load
    7.2V - 19,140 RPM
    8.4V - 21,960 RPM
    Shaft Diameter: 3.17mm (.126") Free Shaft Length: 10.2mm (.408") Case Diameter: 37.0mm (1.48") w/flux ring 35.5mm (1.42") w/o ring Case Length: 56.8mm (2.27") 550 size can Weight: 215g (7.5 oz) Bronze bushings Closed end bell
    Epoxied balanced rotor Flux ring for increased power
    Boat this motor is in: Kyosho WaveChopper

    Information found at this link: http://www.wopba.com/motors.htm

    Hope this helps.

    Bob

  14. #39
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    RE: Dumas 36

    From the Moto-Calc tables:

    Great Planes GoldFire
    2441
    2.000
    0.0940
    7.60

    This means 2440 RPM per volt, and 2A current per volt. It's a "hot" motor. If you use it, start out with a small prop. And an ESC rated at least 30A continuous.
    ~Tom~

  15. #40

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    RE: Dumas 36

    Hi All,
    Thanks for all the info on motors. I probably will be selling this when I'm finished. If you are interested email or PM me and we can discuss price. I will also install your motor. These frame works are used to form the bend in the hatch tops. I made the bends by wetting the hatch tops and using an old steam iron to heat and bend the hatches. Works great and you can make the bends in 5 mins. instead of waiting overnight to conform to the forming frames. Hatches are rough fitted.
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  16. #41
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    RE: Dumas 36

    Fred, if you don't use that motor,I would be interested in it. I have some more of the smaller motors. Larry
    America home of the free,thanks to the brave

  17. #42

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    RE: Dumas 36

    OK guys,
    I have planked the motor hatch with mahogany strips with ABS plastic trim pieces between them.
    I had to even out the hatch planking, wasn't happy with the uneven planking at the end.
    Looks a lot better now.
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  18. #43

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    RE: Dumas 36

    Oops.

  19. #44

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    RE: Dumas 36

    Fred,

    The hatch looks great after you evened it out. Question; what did you do? I compared the before and after photos side by side and other than reshaping the left side to match the right side I didn't see any other planks replaced. I know I usually start in the center and it works out right (pic. Dumas 36" C-C Commander). I'd like to know what to do when it doesn't come out right.

    Also, is that .020 thick ABS?

    Thanks,

    Bob
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  20. #45

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    RE: Dumas 36

    Hi Bob,
    I trimmed the left plank to match the right one. Had to cut the hatch to match the trimmed plank. I then filled in the space in the hatch area so everything would match. Worked great. Starting the rear hatch, done the same way. Glue in the center piece centered on the hatch, then alternate the planks going out to the edge. I'm using the plastic that was in the kit. Don't know the thickness.
    Back hatch is now complete. Will start the planking on the hull next.
    Thanks,
    Fred
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  21. #46

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    RE: Dumas 36

    Got the hull planked with 1/2 in. mahogany strips. Start at the keel bottom and work your way out. When finished start at the chine rail and work up to the top of the deck. Goes pretty quickly with CA and accelarator. When finished needs a good sanding.
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  22. #47

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    RE: Dumas 36

    Transom installed. Port side of hull finished planking. Hull needs a good sanding now.
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  23. #48

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    RE: Dumas 36

    Ah ha, now I see it.  Wasn't looking outside the box.  Duh.

  24. #49
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    RE: Dumas 36

    Impressive keep up the good work.

  25. #50

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    RE: Dumas 36

    I really appreciate your workmanship and especially all the pictures. An exceptional build forum.

    Bob


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