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Old 06-19-2017, 05:36 PM   #26
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Ah yes, I remember those straps. I wasn't involved with the wing building and only have one photo of a wing under construction, it shows the ribs clamped to the widgets but no straps. The photo of Steve sitting in the naked airframe shows the straps if you look closely.

Yes, 2216 was what we used for everything back then.


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Old 06-29-2017, 02:34 AM   #27
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Parts pile getting bigger.


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Old 07-16-2017, 03:42 AM   #28
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This weeks work. Started with a few aluminum parts. Drag tube brackets and I strut fittings.
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Old 07-16-2017, 04:01 AM   #29
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Awesome. Where did you source the aluminum channel? I couldn't find what Ed spec'd out so I bought rectangle tube and ripped it in a table saw.
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Old 07-16-2017, 05:01 AM   #30
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I got some 6063 C channel from Online metals and milled the legs down to size. I tried everywhere to find the proper extrusion but it just wasn't out there.

I do have a little concern with the inside corner radius's on the extrusion. They are small to non existent (looks pretty sharp to me). Checked with radius gauges not quite as big as I would like or called for. I will take some closeups tomorrow and post them. I hope they will pass scrutiny by those who know on here .
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Old 07-16-2017, 05:06 AM   #31
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Another picture of the whole parts pile. Growing little by little. I forgot that I made more 4130 parts as well since my last picture post.
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Old 07-16-2017, 05:13 AM   #32
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I also thought about the sharp radius but its relatively soft aluminum and thick. Then I decided I was overthinking it. I'm pretty sure if I finish a Bitts it will withstand anything I can do to it. I was told that the 6063 is used a lot by awning makers.
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Old 07-16-2017, 06:17 AM   #33
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Everyone has an opinion and I am not building one so much for my armchair quarterbacking. But I would like to see the turtle deck different maybe lower at the tail
end and shape the tail feathers to look like the real little stinker
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Old 07-16-2017, 10:37 AM   #34
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I know Carlson Aircraft used to keep the aluminum channel in stock. Knight Twister's solution sounds good....Tail Shape: The fin on the Bitts looks a bit different than a stock S-1 Pitts. I agree it could look better, but I needed more volume area for yaw stability with the low stall speed, and decided early on to push out the leading edge radius a bit...did not want to raise the height too much. This is why I call it a standoff scale reproduction. Good progress in the photos. It takes high discipline to make all the little parts first. Most of us want to weld up a fuselage first, so we have something to sit in and roll around the shop......
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Old 07-16-2017, 01:47 PM   #35
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The little stuff doesn't take up much space. A card table in my bedroom. I'll finish up all the steel tabs and stuff that I can and then have parts "in stock" when I need them. I am going to work on wing parts next as I have that material. Need to make a bending brake and building table of some sort and probably start on the ailerons.
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Old 09-04-2017, 03:38 PM   #36
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Been busy. Here are a couple of pics of lovingly bent tubing. Packed with sand, was much easier than expected.

More fittings pictures to follow later.
018A.jpg   021A.jpg  
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Old 09-04-2017, 05:16 PM   #37
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Packing sand in that diameter tubing must have been fun.
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Old 09-04-2017, 11:58 PM   #38
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Ribletts and a few piles of tabs and bent up parts.
Wing tip bow attachment parts and made two wing tip bows. Still trying to figure out how I didn't order enough material for all four bows


002A.jpg   023A.jpg  
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