Hostetler 113in Super Chipmunk

Discussion in 'Plane Kits & Frames' started by Tseres, Jun 15, 2018.

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  1. Apr 12, 2019 #241

    Tseres

    Tseres

    Tseres

    Whiny Old Man Supporting Member

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    I've been doing a little here and a little there on the bottom of the Cowl. Got it close. Smeared some 30 minute epoxy with micro balloons in the low spots for strength. Let it harden overnight then sand it.
    IMG_7953.jpg IMG_7954.jpg IMG_7955.jpg IMG_7964.jpg IMG_7965.jpg
     
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  2. Apr 13, 2019 #242

    Roger Seymour

    Roger Seymour

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    Hope you don't mine me adding a little building tip . Don't be too hasty when you get the kit and punch out all the ribs . you can use the framing to support the ribs while putting them in place . . I have found the alignment of all the holes are not very accurate anyway but at least this gives the rib a proper outline when setting them in place .. cheers
     

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  3. Apr 16, 2019 at 3:42 AM #243

    Tseres

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    Just about have all the filler on that I should need for finish shaping... Then just fill in the imperfections. Did I mention I hate sanding. IMG_7985.jpg
     
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  4. Apr 16, 2019 at 3:51 AM #244

    Tseres

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    Whiny Old Man Supporting Member

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    You can also make a plywood bridge across the spar opening to hold the pieces together and in line. I learned this after I had mine built.


    2018-05-26_221524_chipmunk132.jpg
     
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  5. Apr 16, 2019 at 4:39 AM #245

    Roger Seymour

    Roger Seymour

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    Here is a picture of the relocated rib between W1 & W2 I also had to make the formers for the fuse to allow the fillets 100_4003.JPG 100_4004.JPG 100_4007.JPG 100_3996.JPG

    When installed this way you only need to sheet up to the newly relocated rib. This gives you a perfect termination point for the fillet . so simple when you see how de Havilland did it . I can't use the exact shape of the De Havilland former's because I have to work around what is there but it's close ..
     
    Last edited: Apr 16, 2019 at 4:46 AM
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  6. Apr 17, 2019 at 3:33 AM #246

    Tseres

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    Whiny Old Man Supporting Member

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    You don't want to glue in the center section until after you built the outer panels. You also need the strut mounting blocks installed before you sheet the center section. Te strut mounting blocks needs fit.

    I also put sheeting on top of the fuse before I unpinned it from the board to keep it from twisting. That means you need the stringers on first. Hostetler kits re a pain if you don't follow a certain building order. I restarted my build because of it.

    Build the fuse first. Then the tail pieces. Then the center section. Then the outer wing panels. You don't have to sheet the bottom of the fuse till after you glued the Stabs and Center wing section in. If you follow that order, it will make your life a lot easier. I got these tips from a guy on RCSB. It does work.
     
    Last edited: Apr 17, 2019 at 3:42 AM
  7. Apr 17, 2019 at 5:06 AM #247

    Roger Seymour

    Roger Seymour

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    Yeah the center section is removable , I just about finished the main wings today ,and your correct you need the center section free to build the wings .. Thanks to your thread I did mine in the correct order but still lots of room for messing up LOL. I will put the fuse back in the jig before I sheet it ,good thinking .
     
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  8. Apr 17, 2019 at 5:30 PM #248

    Revy

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    Hahahaa, I just clued in, Ramjet.
     
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  9. Apr 18, 2019 at 2:34 AM #249

    Tseres

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    i finished the filling of the bottom of the Cowl. I still have to do some work on the inside. I'll probably put at least on layer of cloth on the inside once I smooth it out. The outside is looking good. A friend of mine is 3D printing some louvers for the cowl. Waiting on them to finish things up. IMG_7987.jpg IMG_7988.jpg IMG_7992.jpg
     
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  10. Apr 18, 2019 at 2:35 AM #250

    Tseres

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    Also working on my outdoor Short Course off road truck. Not finished yet. IMG_7989.jpg IMG_7990.jpg IMG_7991.jpg
     
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  11. Apr 18, 2019 at 3:45 AM #251

    Roger Seymour

    Roger Seymour

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    Both look great ..
     
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  12. Apr 18, 2019 at 11:56 PM #252

    Tseres

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    All good news today. All the granddaughters came over today and the Twins wanted to try and sit in the Chipmunk. They didn't fit. However Greg got Little Nathan from Warbird Pilots in Toledo and the 1/3 scale civilian pilot fits nicely. Have to get some ply and make a seat for him.

    Cut out the foam from the bottom and laid some fiberglass on the inside of the cowl. Just finishing left on the cowl. [​IMG]:)
    IMG_7994.JPG IMG_7997.JPG IMG_7998.JPG IMG_7996.JPG IMG_E7999.JPG
     
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  13. Apr 19, 2019 at 9:45 PM #253

    thepamster

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    A couple of cute future airplane pilots right there that is for sure. Full scale or RC pilots, or maybe both.
     
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