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  1. #101
    8178's Avatar
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    RE: Skylark 56 – 1966 Flashback - Build

    The 1/4” X 1/6” rib cap strips are installed, top and bottom. It is interesting how much strength the cap strips add to the ribs. Sanding the trailing edge basswood down to a fine 1/6” edge and blending in with the sheeting. Added some triangle pieces to strengthen gear block mounting and test fitting the main gear strut.

    To be continued…
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  2. #102
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    RE: Skylark 56 – 1966 Flashback - Build

    Working on the wingtip block. I use the round loop X-acto router blade to carve out the block.

    To be continued…
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  3. #103
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    RE: Skylark 56 – 1966 Flashback - Build

    Working on the aileron. In these images the aileron line has been cut in the sheeting and part way into the ribs with an X-acto knife.

    To be continued…
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  4. #104
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    RE: Skylark 56 – 1966 Flashback - Build

    Using a very thin fine tooth hobby saw I cut through the ribs.

    To be continued…
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  5. #105
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    RE: Skylark 56 – 1966 Flashback - Build

    I/16” sheet glued to the back edge of the wing.

    To be continued…
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  6. #106
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    RE: Skylark 56 – 1966 Flashback - Build

    Aileron cut away from the center wing part and the aileron torque tube linkage. The aileron torque tube is an unused part from my Tiporare kit.

    To be continued…
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  7. #107
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    RE: Skylark 56 – 1966 Flashback - Build

    After cutting out the aileron the wing was ready for the tip block.

    To be continued…
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  8. #108
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    RE: Skylark 56 – 1966 Flashback - Build

    The back edge of the wing sanded out.

    To be continued…
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  9. #109
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    RE: Skylark 56 – 1966 Flashback - Build

    The wing tip block sanded out smooth with the wing.

    To be continued…
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  10. #110
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    RE: Skylark 56 – 1966 Flashback - Build

    Test fitting the aileron linkage. The nearest bay to the center of the wing on the trailing edge is filled with a balsa wedge. The extra balsa will be part of the nylon bolt mount for the back of the wing.

    To be continued…
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  11. #111
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    RE: Skylark 56 – 1966 Flashback - Build

    The torque tube is countersunk into the trailing edge to get its center of rotation as near as possible to the hinge line and epoxied in place.

    To be continued…
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  12. #112
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    RE: Skylark 56 – 1966 Flashback - Build

    The front 5/16" of the aileron was cut off and a ¼” piece added and then beveled on the top and bottom.

    1/16” was cut off the front of the center tailing edge and was glued back on with a combination of glue. Epoxy glue was used where the ribs support the torque tube and yellow glue at the sheeting seams.

    To be continued…
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  13. #113
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    RE: Skylark 56 – 1966 Flashback - Build

    A brass tube gizmo was made and soldered to aileron linkage for the clevis connection.

    To be continued…
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  14. #114
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    RE: Skylark 56 – 1966 Flashback - Build

    Ultra sweet!!!!!

    -Robert
    2012 NSRCA D7 Intermediate Champion
    West Coast Regional Director- Classic Pattern Assn

  15. #115
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    RE: Skylark 56 – 1966 Flashback - Build

    The top center sheeting is on. So far so good and it is building straight and true.

    To be continued…
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  16. #116
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    RE: Skylark 56 – 1966 Flashback - Build

    I’m leaving the bottom sheeting off until I finish the left wing so I have access for measurements if needed.

    To be continued…
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  17. #117
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    RE: Skylark 56 – 1966 Flashback - Build


    ORIGINAL: KLXMASTER14

    Ultra sweet!!!!!

    -Robert
    Thanks Robert. It is much fun! I haven’t used the cut out aileron process on a built up wing in decades but it seems to be going fine.

  18. #118
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    RE: Skylark 56 – 1966 Flashback - Build


    ORIGINAL: 8178
    ... but it seems to be going fine.
    Mike,

    When you're at the helm, it always does.

    If you were to make a mistake, we would never know unless you told us.

    I think I'm going to have to get me one of them balsa colored carpets..., your pictures always look great!

    Can't wait to see the fuse.

    David

  19. #119
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    RE: Skylark 56 – 1966 Flashback - Build

    Here we go again! The left wing panel top front sheeting.

    To be continued…
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  20. #120
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    RE: Skylark 56 – 1966 Flashback - Build


    ORIGINAL: doxilia


    ORIGINAL: 8178
    ... but it seems to be going fine.
    Mike,

    When you're at the helm, it always does.

    If you were to make a mistake, we would never know unless you told us.

    I think I'm going to have to get me one of them balsa colored carpets..., your pictures always look great!

    Can't wait to see the fuse.

    David
    Thanks for the comments David. I did almost glue one of the plywood gear mount doublers to the wrong rib but I caught it right away and got the epoxy off the rib! If you see me building two right wing panels let me know right away.

    I’m looking forward to the fuselage too. I have the wood and I’m just thinking through if I want to use the G-21 46 or one of my more powerful engines.




  21. #121
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    RE: Skylark 56 – 1966 Flashback - Build


    ORIGINAL: 8178

    I did almost glue one of the plywood gear mount doublers to the wrong rib but I caught it right away and got the epoxy off the rib!
    Mike,

    Glad you told us. It makes me feel a little more human. I managed to leave a stab setting with epoxy while I went to pick up my kid from school. Naturally I was late as "it always takes longer" when you're building. Needless to say, when I came back, I wasn't too happy with what I saw... But that was a while ago.

    If you see me building two right wing panels let me know right away.
    We will..., in the extremely unlikely event!

    I’m looking forward to the fuselage too. I have the wood and I’m just thinking through if I want to use the G-21 46 or one of my more powerful engines.
    What are the other options? Knowing how you like to set things up, I wouldn't be surprised if we wind up seeing a 55 up there.

    This thread is just cookin'! You're making excellent progress.

    David

  22. #122
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    RE: Skylark 56 – 1966 Flashback - Build

    Added the lower front and tailing edge sheeting. Epoxied in the landing gear block plywood rib dubblers and gear block.

    To be continued…
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  23. #123
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    RE: Skylark 56 – 1966 Flashback - Build

    Ended up using about 1/2” of dihedral under each wing tip. Just enough that it is noticeable and keep from having the straight wing look.

    To be continued…
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  24. #124
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    RE: Skylark 56 – 1966 Flashback - Build

    Installing the internal aileron parts; hinge points, end caps and linkage mount before adding the top sheeting on the left wing panel.

    A small cut was made at the aileron ends so I can find the ends when the top sheeting is installed.

    To be continued…
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  25. #125
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    RE: Skylark 56 – 1966 Flashback - Build

    Working on the left wing panel. The top trailing edge, rib cap strips and center sheeting is on along with the 1/8” X 3/16” basswood strip on the trailing edge. The lower sheeting is not installed yet so I can add some sheer webs on the main spars.

    Next, the wing tip block, sand down the basswood trailing edge, cut out and complete the aileron, install shear webs on the main spars, bottom center sheeting and make a 1/4” thick plywood center wing joiner that will fit between the upper and lower wing spar.

    Sanding the basswood to an edge takes some effort but I think having a sharp hard edge is worth the extra work.

    To be continued…
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