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Sport The Kool Kanary (Giant Hot Kanary)

Discussion in 'Giant / Scale Scratch and Kit Build Threads' started by Bipeguy03, Oct 5, 2017.

   
  1. I used a razor saw to cut through the ribs, and just a #11 knife blade with a straight edge to cut through the sheeting.

    There will be a 1/8" sheet balsa shear web/aileron cove glued to the rear spar. As for hinges, I haven't fully decided which method I'm going to use. If I use the top hinge method with Dubro pin hinges (like the Krier Kraft) I will just hinge onto the rear spar.

    If I use robart hinges and the center hinge method, I will cut and fit a balsa block in between the spars at the hinge location.

    I'll make sure to post plenty of pictures for ya when I get there :)
     
    Alky6, Jetpainter and pawnshopmike like this.
  2. Alky6

    Alky6 150cc

    Thanks!
     
  3. Okay so cutting ailerons free from wings is much easier than it seems. It also makes it easier to build a good fitting aileron because you build the aileron as you are framing up the wing.

    First off the tools that you need are a razor saw, a #11 Xacto blade, a metal straight edge and a pencil.

    12.jpg

    I like to remove the blade from the razor saw so that I can cut deeper with it.

    13.jpg

    First, push the Xacto blade through the sheeting right up against the rear face of the rear spar, toward the inboard end of the aileron.

    14.jpg

    Then put a pencil mark on the sheeting right in line with the knife blade, and then repeat this toward the outboard edge of the aileron.

    15.jpg

    Now use the straight edge to draw a line between the 2 marks, this will depict the aft edge of the rear spar.

    16.jpg

    Next, use the razor saw to cut the sheeting in between the aileron butt rib, and the wing rib and then repeat this on the other end of the aileron (if needed).

    17.jpg

    The reference line we drew before is the stop line, don't saw any further or you will be cutting into the rear spar.

    18.jpg

    Now, put the straight edge back up to the line you drew. Using the #11 blade cut along the line, don't try to cut the ribs we'll do that next, just cut the sheeting.

    19.jpg

    Now, use the razor saw to cut the ribs free. Make sure to keep the razor saw blade right up against the rear face of the spar, but be careful not to cut into the spar. Don't worry about the rib ends being a little ragged, when finishing the ailerons that will get cleaned up.

    20.jpg

    And wahla! The aileron should pop free.

    21.jpg

    Last thing to do is clean up the sheeting and the ribs in the wing with a sanding block, making sure to sand the sheeting flush with the butt ribs as well as the sheeting up against the rear spar.

    22.jpg
     
    Last edited: Oct 22, 2017
    HRRC Flyer, Alky6 and pawnshopmike like this.
  4. After cleaning up the sheeting around the aileron cut out I put the cove block in. This is a 1/8" strip of sheet balsa glued to the face of the rear spar.

    WP_20171021_014.jpg

    Make sure to leave it a little big. After it is glued in, true it up with the sanding block, sanding it down flush with the sheeting.

    WP_20171021_016.jpg
     
    Last edited: Oct 22, 2017
    HRRC Flyer, pawnshopmike and Alky6 like this.
  5. I put the cap strips on the tip ribs in anticipation for the tip blocks. After I put the leading edge caps on and shape them, it will be time for the tip blocks.

    After that all that will be left is the cap strips, aileron servo mounts and finishing up the ailerons.

    WP_20171021_017.jpg
     
  6. Alky6

    Alky6 150cc

    Thank you for the step by step process. Makes a whole bunch of sense, especially since one side of the aileron wasn’t sheeted. Very much appreciated!!
     
    pawnshopmike and Bipeguy03 like this.
  7. Yep, I like to cut the aileron free before I sheet both sides. It gives me more flexibility when it comes to where I put the hard point for the horn, where the balsa backups for hinges go and so forth.

    Not to mention it makes cutting them free a lot less nerve wracking ;)
     
    Alky6 and pawnshopmike like this.
  8. HRRC Flyer

    HRRC Flyer GSN Sponsor Tier 1

    Dang @Bipeguy03,

    Can I send you my AMR Stick so you can build it for me? At the rate you're getting this Kool Kanary done, you're going to be looking for something else to build is a few weeks. . . . . :yesss:
     
    Jetpainter likes this.
  9. I got both wingtip blocks on and carved and the cap strips done on the top of the wings.

    WP_20171024_001.jpg

    Nest it is on to the servo pockets. I started by building the pocket fram out of 1/4" sq. basswood.

    WP_20171024_002.jpg

    I then made corner gussets out of spruce, the double as the screw mounts for the servo plate.

    Then finally, I put the cap strips on the bottom of the wing, and around the servo pocket.

    WP_20171024_003.jpg

    WP_20171024_004.jpg

    Next, is the servo mount plate.
     
  10. I've been slowly pecking away at the ailerons the last few days. I decided to make control horns like I did on the Krier, I just made them a little bigger so I could get more throw.

    Just have to hinge one, and then I can move on to fitting the wing to t fuse.


    WP_20171031_003.jpg

    WP_20171031_004.jpg

    The aileron and aileron horn on my build jig. Here all that was left to do was glue the bottom sheeting on.

    WP_20171031_005.jpg

    One hinged and one to go and the bottom wing will be finished.
     
    Alky6, Jetpainter and pawnshopmike like this.
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