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There's what, 4 posts asking after me in a year? I seem to be as popular as a man at a Feminist Convention wearing a strap on dildo.   But I am highly unimpressed with mostly Murdoch's lies

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Soooo....

 

Over the weekend I redesigned the wing box for some good reasons, as well as ever, simplicity, speed and cost.

 

Yesterday and today busy building it.

 

The theory is simple, tapered wing ends into a tapered, self locating and aligning. I just got enough of one partial wing finished tonight and it works a treat, fits so damn good that I actually am concerned about taper stiction, I had to wiggle it quite a bit to get it back out!

 

1561203570_wingbox3.jpg.dd915370f2d6d6a59c3cdd123b4e4093.jpg

 

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919917130_wingbox2.jpg.21061735dd4c63efa0524ef1bb97a6fc.jpg

 

 

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.. and also putting the front half back onto the rear half, note the carry through tubes that someone was concerned about. Also note there is a substantial outer joining plate not shown yet.

 

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A question re the wing box - given that the box itself is full spar height over its length, wouldn't the spars be stronger being full height all the way to their end? Or is there no strength difference because the sum of the spar and box heights anywhere along the taper is the same as the spar being full height?

 

 

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A question re the wing box - given that the box itself is full spar height over its length, wouldn't the spars be stronger being full height all the way to their end?

There is no loss of strength tapering.

 

Besides ease of locating, you gain secure, zero clearance fit that strengthens the sum as a whole, you can not have zero clearance fit with parallel spars (without mechanical devices).

 

 

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Pretty much the same as Hugh Lorimer's Sgian Dubh

Similar, not same.

 

I had actually designed a few different taper methods earlier before seeing that in the Sgian Dubh thread, and I did refer to it again last week for some thought inspirations.

 

No, it's upside down... 003_cheezy_grin.gif.c5a94fc2937f61b556d8146a1bc97ef8.gif

No, mine's the right way around.

 

... and that's when the fight started ...

 

 

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Similar, not same.I had actually designed a few different taper methods earlier before seeing that in the Sgian Dubh thread, and I did refer to it again last week for some thought inspirations.

 

No, mine's the right way around.

 

... and that's when the fight started ...

Well, the other one's Irish. 'Nuff said.

 

 

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So this is what the wing is looking like (in progress), note I use a folded C channel shear web, besides a little added strength, it's main function is as a jigging entity that keeps the assembly dead straight ...

 

WK3.jpg.bc5d8fd4a2edb1fd2563213d06129fed.jpg

 

WK1.jpg.dabca75bf7be6aa8c0b1b87f780ab378.jpg

 

WK2.jpg.51534c38ff5de9534aec98957e3dd14f.jpg

 

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Annoyingly the rear turtle deck front skin was a little too short (25mm/1") and I had to make a new one. So I decided to make it just one piece and rivet to the spine as you can see here.

 

Good thing is the entire rear turtle decks and tail can be assembled on a flat bench or floor in one piece as you see here then simply added to the frame as the one piece, of course I've set it up so that's all also self jigging. It's darn easy.

 

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WK4.jpg.5c97a5a822d609f9338fcfc0ee7b1653.jpg

 

 

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