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Timber 110" Twin Build

Discussion in 'Giant / Scale ARF Build Threads' started by RC80AK, Jun 30, 2020.

   
  1. RC80AK

    RC80AK 30cc

    Greetings Guys,

    After completing a twin-mod build on an Ultra Stick 30 this spring and loving how it performs I've decided to roll the concept to the Timber 110. Here are a few photos of the finished stick and a rendering of the project. Most of the components should arrive before the holiday weekend and I'll start cutting out parts on the CNC this week.

    Screen Shot 2020-06-28 at 5.27.02 PM.png IMG_2311.jpeg IMG_E1589.jpeg IMG_1994.jpeg landing.jpeg
     
    Last edited: Jun 30, 2020
    -Rick-, AKNick, SjtStriker and 3 others like this.
  2. Awesome. Sounds like a cool project. And welcome to GSN. :welcome:

    Edit: That’s a really cool carry cradle for the Stick. You’re own design? I need to make some of those for several of my planes. Would come in real handy.
     
    Wild man and RC80AK like this.
  3. WMcNabb

    WMcNabb 150cc

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    Very cool concept!

    And welcome to GSN!
     
    RC80AK likes this.
  4. Snoopy1

    Snoopy1 640cc Uber Pimp

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    Nice design looks great, and welcome to GSN.
     
    RC80AK likes this.
  5. RC80AK

    RC80AK 30cc

    Thanks guys! The Ultra Stick got me hooked on giant scale. She flies incredible in the wind with the added size, weight, and an Aura 8 flight controller. I wasn't intending on another build this summer, but... well you know how it goes. :D

    Thanks pawnshopmike, the cradle is my own design. It's milled out of 3/4" MDO. My truck bed cover hinges down and captures the top to keep the plane secure while driving. It also straps it to the front rack of my ATV when I want to fly somewhere the truck can't go. Trimming the stick tips down and going with plates/custom angled forward landing gear allowed the wing panels to fit between the horizontal stab and gear.

    I'll be making one for the Timber, but I'm not sure how I'll nest the components together yet.
     

    Attached Files:

    AKNick, pawnshopmike and WMcNabb like this.

  6. WMcNabb

    WMcNabb 150cc

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    What could be better than Planes, Puppies and an ATV??!!!
     
    RC80AK and pawnshopmike like this.
  7. AKNick

    AKNick 150cc

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    Why hello fellow Alaskan!! :welcome: I tried to hit "like" multiple times, but it wont let me :cryin:
    As you probably saw, we have a 110" timber thread here you can reference for beefing up the needed areas. CG 5" back from the LE should be easily achieved with your setup! That Stick turned out beautiful!
    Looking forward to the TWINBER!!!! :yesss:

    I couldn't help but notice we have similar ideas for the tailwheel! How did you do yours on the stick?
    36A76EC7-4AA5-4CF6-AF08-3D9ACDFE2C94.jpeg
     
    Last edited: Jun 30, 2020
    dhal22, RC80AK and -Rick- like this.
  8. RC80AK

    RC80AK 30cc

    I agree! The wife and pups love RC trips to the beach!
    Thanks Nick! I appreciate the warm welcome from everyone. I'll be taking advantage of all of the great information on the forum.

    Yes! It looks like our tailwheel forks are very similar... I needed something a lot stronger, bigger, and with some give for beach flying. The spring is a single 5/32" music wire bent on both ends. One end forms the fork pivot with a single retaining wheel collar. The other end has a bend that is captured by the two mount halves to keep the wire from spinning. The fork and mount are milled out of HDPE on my CNC router. The fork control arm is single sided and floating on two machine screws with fuel tube bushings. It gives the setup a little give since it is direct linkage to a metal gear servo. I've been very happy with the Dubro 2.5" smooth rubber low bounce tire as a tailwheel. It has the perfect amount of give and does exactly what Dubro claims with the "low bounce" description. The setup works awesome!

    What do you think of the factory tail spring? Should I stick with it for beach flying and mill a tailwheel fork? fork cut 2.jpg fork cut.jpg IMG_1792.jpeg IMG_1790.jpeg tailwheel.jpg
     
    Last edited: Jun 30, 2020
    Snoopy1, -Rick-, AKNick and 1 other person like this.
  9. RC80AK

    RC80AK 30cc

    Here's a short video hanging the stick in the wind. The twin 15" props directly in front of the flaps along with the VGs keep the wing flying and in full control. I can't wait to try this out with a higher lift airfoil/110" wing, massive flaps, and slats!
     
    Wild man, dhal22, Snoopy1 and 2 others like this.
  10. Very cool!
     
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