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  1. #1

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    WACO Custom Cabin project

    It's time to start a new project. After doing some research it looks like the WACO custom is not a frequently modeled variant of the WACO cabin series. We'll be miniaturizing the 1937 ZGC to 1/7 scale. This will put the wingspan at 59.39" and it should finish up less than 7 pounds but we all know how that weight thing goes. The 3 view is almost finished but I'm still wrestling with the exact location of the wing struts and landing lights plus a few other minor details that require resolution before drawing up the plans. This is my second electric project and the first scratch build starting only with a 3 view. We're going to have some fun with this one!
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    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  2. #2
    TLH101's Avatar
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    RE: WACO Custom Cabin project

    That's kool. Don't believe I have seen that model.
    I love the WACO cabins. Especially the ZVN.
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    Terry
    "Old Fart" in training. (not to be an R/Cer, but to be an "Old Fart")
    P-39 Brotherhood # 6
    P-38 Brotherhood #69

  3. #3
    yel914's Avatar
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    RE: WACO Custom Cabin project

    I think you might benefit from a visit to the GOLDEN AGE & VINTAGE forums here on RCU. There is an outstanding thread on the Waco YMF, but anything Waco is talked about. It's literally a gold mine of info with some very talented and well informed folks. Hope to see you there!
    Kits show building skills, ARFs show shopping skills. WACO Brotherhood #24

  4. #4

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    RE: WACO Custom Cabin project

    Thanks for the heads up! I'll check in soon. Terry, the ZVN is a rare bird indeed. I have seen three pictures of different planes, none in person. Wonder how many of 'em were built?

    The three view is finished. I'm 80% sure that it's 90% right. How's that for a Yogi Berra-ism? If anyone sees inconsistency in it, let me know so it can be fixed.

    I'm toying with the idea of going with air actuated flaps and landing lights. The flaps are vacuum controlled on the originals and the landing lights extend from the underside of the main wing. The only concern is weight. The air system will add close to 6 oz. to the finish weight, pushing it over the 7 pound target. We're looking at roughly 650 square inches of lifting surface so this may or may not be a problem? Want to keep the model airspeed as close to scale as possible.
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    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  5. #5

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    RE: WACO Custom Cabin project

    Excellent choice. Not many of the WACO cabins around, and even fewer of the custom cabins. Here's my 1935 YKC-S done up in 1/5 scale. At 16 lbs, its an excellent flyer on a 1.60 twin. I'm currently doing up a 1/4 scale version of the same plane for my winter project. If you run into any construction issues or want to kick ideas around, don't hesitate to email me.



    Tony
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  6. #6

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    RE: WACO Custom Cabin project

    Tony, that is one fine looking model, right down to the rivets in the windscreen! This project is generating more questions than answers so we'll be in touch. Thanks!

    Hank
    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  7. #7

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    RE: WACO Custom Cabin project

    The plan is underway but point of detail has emerged as a potential problem. The C7 series has a split flap design. Due to the relative thickness (thinness?) of the model's trailing edge, it looks as if a very fragile trailing edge condition will exist by carving in a split flap. This would not be a problem if the wing was planked but it's fabric covered to remain true to the original. I have looked at a couple of examples here on the board of what others have done to incorporate a split flap into the wing. The best of both ended up in the design under consideration. Have a look at the sketch. The flap is roughly 13" long and 1 5/8" wide. I believe the sheeting will add enough strength to make a relatively robust trailing edge but may be prone to warpage. Agree? Disagree? Suggestions?

    As an aside, some problems with the 3 view surfaced. The 80% confidence level is now 90% with the corrections drawn in.
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    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  8. #8

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    RE: WACO Custom Cabin project

    Got the fuse frame design laid out. Decided to go with a box frame to keep the weight down. All frame members will be 3/16 square balsa with a ply firewall. Wing and landing gear mounts are built up "X" members that attach to the bottom of the frame. Window cut outs will be 3/16 sheeting to beef up the top wing mount and windscreen frame mount. The fuse formers, wings and tail surfaces are on the drawing board now.
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    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  9. #9

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    RE: WACO Custom Cabin project

    We're continuing this thread on the Golden Age, Vintage & Antique RC forum.
    Yes, I have gone wacko for WACOs.
    See my other passion at lulu.com/hank01

  10. #10

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    RE: WACO Custom Cabin project

    hello all

    Did anyone has an exprience with flying and building "waco enf. I have RCM no. 1149 plan, which will be inlarge by 15% to 1/5 scale

    Thank's

    Amir Avishay


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