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  1. #1
    skaliwag's Avatar
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    1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Lets look and talk about 1/2A Bipes. And not ignore the connection of the upper wing to the rest of the airplane and the cabanes.

    Just remember ... Real Airplanes have Round Engines and 2 WINGS

    Real Airplanes have Round Engines and Two Wings.

  2. #2

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    You're talking structure, and how overly simplified they are at this scale? And does anyone even bother to follow the original hidden secret of the BU-133's negative upper plane incidents... I think not?

    "What's locked up in their star ships, this needs to be known!"
    Hovering... so passe now!

  3. #3

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Define wing and round !!

  4. #4
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    If the cylinder is round, does that count?
    Sorry I'm late dear, I had to help my uncle Jack off his horse.

  5. #5
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    The greatest all around...semi scale RC plane I've ever flown was the Goldberg Ultimate. I believe the structure was purely 0-0-0 between both wings and the tail. The only deviation was a few degrees of right thrust to compensate for the 14 to 15 inch diameter props that many builders were using on it.
    Full size span was 54 inches IIRC and I shrank it to about 24" [IIRC] for a 1/2A project. Built it as light as a feather, rigged it with Spiderline pull / pull linkages, HS55s all around, tiny battery & RX, cellophane covering...just did it as light as I possibly could.
    IIRC it was 12 ozs RTF.
    Tried it with .049-.061 glow..6x3 prop and it was pretty lively but nothing compared to the OS 1.20 powered version
    Tried it .049 diesel with 7x3 prop [both TD & AME]..basically the same stuff
    Tried Norvel .074 and 7x3 prop..much, much better. Still not enough for KE loops, but now it was capable of everything else in a big way. I still have both of the ones I built hanging in the rafters.
    Another 1/2A bipe I built from pictures in a huge book I got at a used book store.
    The 1930's DeHavilland Dragon Rapide. It has about 54 inches of span, built 0-0-0, powered with 2 fairly weak TDs fed from a single bladder that has feed lines coming out both ends. All pull / pull linkages, it turned out very light and slightly tail heavy. Not just tail heavy [still very controllable], but "bouncy" in choppy air. So I experimented by filling up the cabin / fuselage with lug nuts and this made it fly better. With both engines running it will hold altitude in KE flight and with 1 engine running it can be held nose up and tilted so that the lone engine running doesn't put it into a spin. 2 TDs running sound cool on this plane that flies like a pretty well powered glider. The engines are hung below the zero line of the plane's vertical CG and they needed considerable down thrust to compensate. I tested for the proper angle with the engines running and the model held at the wing tips loosely to feel for neutral / level AoA. I filed the backside of the Dubro engine mounts to acheive the proper angle. This plane sits in the rafters as well, waiting for another day...it's cellophane covering still looks OK.
    I strongly recommend trying both projects if you are a modeler who likes little challenges without spending too much money or time.
    WHO GUNNA FEED MAW KEEEIDS..???

  6. #6
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    MJD. Multiple round cylinders and a con rod that looks like a spider

    LittleRock ....Wings .... a couple of boards. One over the pilots head and one under his butt.
    Real Airplanes have Round Engines and Two Wings.

  7. #7

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Here are a couple of Little Bipes:

    George
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  8. #8
    MJD's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Looks like a Scientific something-or-other..?
    Sorry I'm late dear, I had to help my uncle Jack off his horse.

  9. #9
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    The original Skaliwag .... When a K was a C, or a C was a K...
    Left to right. PAW .061, PAW .049, Norvel .049 with a diesel head.

    Edit ... Tried to crop the picture.
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    Real Airplanes have Round Engines and Two Wings.

  10. #10
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Reply to post #2.

    Can you post some links to the BU-133 principle you mentioned. (I do it the other way, positive on top as per Joe Wagner's Dakota)
    Real Airplanes have Round Engines and Two Wings.

  11. #11
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    That's a great looking fleet GCB & Skaliwag...! They look pretty tiny, too.....[:-]...[but not too tiny, you can never get too tiny.]
    WHO GUNNA FEED MAW KEEEIDS..???

  12. #12
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Bipes Rock, Roll and Rule.
    Real Airplanes have Round Engines and Two Wings.

  13. #13

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Oh, I have a bipe!! Here is my Christy bipe with Tee Dee .010.

    Bob Harris
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  14. #14
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Pure Aero P**n.
    Real Airplanes have Round Engines and Two Wings.

  15. #15

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-


    ORIGINAL: BobHH

    Oh, I have a bipe!! Here is my Christy bipe with Tee Dee .010.

    Bob Harris

    Where do you get hold of a plan for this little cutie?

    ChrisM
    'ffkiwi'

  16. #16
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Another Bipe. This one from the now no longer in production Early R/C.. The Schoolgirl ..... Do you have a better picture Bob?
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    Real Airplanes have Round Engines and Two Wings.

  17. #17

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    This C/L Tiny Tot was a bit of fun a couple of years ago, Norvel .061.
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  18. #18

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Both the Christy and the School Girl are REALLY cute! I think I see a couple projects for S.M.A.L.L. 2013.

    Tim

  19. #19
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Perfect... Got the tiny airplane juices pumping ... Woooh Hooooo.
    Real Airplanes have Round Engines and Two Wings.

  20. #20

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Steve, here is a pic of mine at the VRCS flying. This one flew with a Cox Medallion and throttle sleeve. A great little bipe.

    Bob Harris
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  21. #21

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-


    ORIGINAL: MJD

    Looks like a Scientific something-or-other..?
    Would you believe...Scientific "Little Bipe"?

    George

  22. #22

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    And lets not forget the Flipper!!! Here's mine!!

    Bob Harris


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  23. #23
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-


    ORIGINAL: gcb

    Would you believe...Scientific ''Little Bipe''?

    George
    LOL! Now there's an appropriate name. I probably could have found it in the AHC ad in an old mag.
    Sorry I'm late dear, I had to help my uncle Jack off his horse.

  24. #24
    skaliwag's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Don't forget this one. A beat up Dakota with a wore out Wen Mac
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    Real Airplanes have Round Engines and Two Wings.

  25. #25

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Did someone say "Dakota". Heres myTestors/McCoy build. Flew it just the other day, bags of low tech fun. Flick and toss.
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