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Sport Bud Nosen (!!!) 1/4 Scale Citabria Build! Woo hoo!

Discussion in 'Giant / Scale Scratch and Kit Build Threads' started by Bartman, Mar 21, 2018.

  1. Bartman

    Bartman Defender of the Noob!

    I've cut room to double up the frame members where the loads go from the leading edge down into the fuselage sides. If I can get good epoxy bonds and solid wood to wood contact I should be good. I thought about some steel but figured some more wood would work.

    It passed destructive testing today where I tried to pull it apart and probably applied thirty pounds of force against the bulkhead I glued in. I figured if it broke and went into the garbage it was saving me all of the time to finish it before it breaks apart anyway!
    acerc and 49dimes like this.
  2. AKNick

    AKNick 150cc

    Well when a cub is treated like a 3D plane... It ain't designed for them G's!!
    Jetpainter likes this.
  3. Snoopy1

    Snoopy1 640cc Uber Pimp

    If you want to fly like that a cub is not the plane to do it with wing on top and the window structure below the wing to hold it in place does not work as was just demonstrated.
  4. Bartman

    Bartman Defender of the Noob!


    It's a Clipped Wing Citabria! The Citabria is certified for acro! Maybe not that much acro!

    I've only got a G26 for it so it's not going to be going ballistic anyway. :)
    Jetpainter, 49dimes and acerc like this.
  5. dhal22

    dhal22 GSN Sponsor Tier 1

    I had that happen to me on a 40 size Super Sportster back in the early 90's. The nylon wing bolts stripped out of the blocks during the bottom of a hard loop and away went my fuselage like a missile. Right into the back of a car.

    I was flying on a construction site and the fuse crashed into the general contractor owner's car. A Japanese man was the car owner, his secretary told the policeman that it looked just like a missile coming in. One of the many construction workers looking on at the scene then promptly said 'That will teach him for Pearl Harbor'. :cool:
  6. dhal22

    dhal22 GSN Sponsor Tier 1

    Here is a Cub build photo that got me to make the cabin area in my Cub build steel tubing.

  7. Snoopy1

    Snoopy1 640cc Uber Pimp

    That is really looking good. Nice job on the plane.
  8. dhal22

    dhal22 GSN Sponsor Tier 1

    That is not my Cub build. Someone else's that I took a liking to the steel framing idea and decided to copy.
  9. Bartman

    Bartman Defender of the Noob!

    i love scale construction details like that. @MattyMatt 's Pitts a couple of years ago used similar details for the engine mount I think.
  10. Bartman

    Bartman Defender of the Noob!

    So I cut a slot in the bulkhead below the leading edge area and fit a piece of 1/8th inch plywood to tie the upper fuselage area into the bulkhead area. The piece fit well and was epoxied with West Epoxy which is top shelf. I cut the slot with a big old saw so it looks like it, my little pull saw which is usually razor sharp wasn't!


    I think there are enough interlocking pieces now to make it strong enough. I'm also going to put a small piece of angle aluminum behind the wing mount bulkhead and some triangle stock at the bottom of my reinforcement piece to close up my gaping saw damage and to tie that lower end together. I think I'm still ahead of the weight reduction game so we'll see.

    dhal22, Snoopy1, 49dimes and 2 others like this.

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