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  • #46
    Hello BearHawkers, Just some general cheerleading here. SO, Riveting on LH main & rear spars are complete. The spars came out straight as an arrow they are prefect! May I highly recommend using a jig similar to the one I built. I do not want to over step here, however the jig works like a hot dam. The electrical strut I used to celeco the spar to are at the Stations A, B, D, & E. Now we are working on bucking all the RH spar rivets. If any one has any questions. Just ask. I really like chatting about BearHawk anything. cheers !
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    • #47
      This is what the RH main spar looks like up on the jig after I stuffed proper length rivets into every single hole ! before I start bucking rivets. There is a celeco every tenth hole. The masking tape is needed to hold rivets in place while you start to buck rivets. LH main took 12 hrs to buck all the rivets RH should be quicker with some experience under our belts. Cheer enjoy your week end.
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      • Bcone1381
        Bcone1381 commented
        Editing a comment
        Looks Good!! All those individual pieces of tape look time consuming to install. Are you familiar with Rivet Tape? Put One long piece over all the rivets. https://www.yardstore.com/rivet-tape-1

      • Sir Newton
        Sir Newton commented
        Editing a comment
        Bcone1381, lol, Yes I am. I even bought 2 rolls of 3/4. I am just to cheap to use it.
        I watching Mike Patey bending spars on his UT channel. Mike looks like a ton of fun!
        After his video I have decided to model up my wings in Solid Works to run an FEA
        Last edited by Sir Newton; 05-01-2021, 01:19 PM.

    • #48
      We have passed a major milestone. The wing spars have been completed. If I had to guess it took in and around 300 hours to complete all 4 wing spars. I have kept a detailed log so if anyone cares about the exact time. I could figure it out. Build on Bearhawkers! BUILD ON!
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      • #49
        Curious, what primer did you use? Looks gold, like alodine in the photo. Great job.
        Gerry
        Patrol #30

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        • Sir Newton
          Sir Newton commented
          Editing a comment
          It is alodine, I had a chat with our local inspector today about priming before his pre-cover inspection, He did not care one way or the other. So I will use Endura EPC2 sealing primer when the day comes to prime the wings. I am pleased with how the spars came out. I am fabricating a jig to help assemble the wings ribs to the spars.
          Cheers Gerry your comments are really appreciated thank-you
          Last edited by Sir Newton; 05-05-2021, 01:31 AM.

      • #50
        My fwd spars are going together now. Am very interested in your approach to rib to spar tooling. Will follow with interest. Keep the pictures coming.
        Gerry
        Patrol #30

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        • #51
          Hello everyone who reads this message of general cheerleading the project on. We have now moved on to rib placement between the spars ! This is how I set my spars up on welding stands that can be adjusted for height as required. I am using a self leveling lazar level to set up the assembly. I happy to report the spars are straight measurable deflection is less then 1.5 mm overall end to end. This wing is far straighter then any Cessna wing. Today I trimmed and set #8 & #1 rib. Forgot to take pictures before I left the shop. I will post more asap. Any questions you want to ask. Feel free.
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          Last edited by Sir Newton; 05-11-2021, 11:04 PM.

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          • #52
            How did you locate your compression struts?
            Gerry
            Patrol #30

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            • Sir Newton
              Sir Newton commented
              Editing a comment
              The positions are station B & D. Basically they are simple mock ups of the aileron & flap drive linkage. Dwg: 11B
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