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Cotton Waiex 191 - N191YX

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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Jan 21, 2014 12:08 am

All longerons piloted to #40 and vertical channels clecoed on the right side.
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Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby sonex892 » Tue Jan 21, 2014 3:53 am

Did you offset the bottom longeron the thickness of the floor sheet?
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Location: Port Macquarie Australia
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Jan 21, 2014 8:27 am

Whoops. Anybody else ever make that mistake?
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Jan 21, 2014 10:01 pm

I did a little experiment with scrap. I pilot drilled a piece of .025 flush with the edge of a piece of angle. Then I offset the simulated skin .025 and drilled through with a #30. The hole cleaned up pretty good. If I have any holes I don't like I will go up to a #21 and use an AN470AD5 solid rivet.

I am also looking into a local supplier for angle. Another option is to take some of my 1.5" by .0125" Hummel stock and trim the edges down- maybe on the bandsaw, or I will see if I can borrow my neighbor's plasma cutter.

Spruce estimates $175 in shipping for this $30 worth of aluminum. Anything over 8' does not go UPS.

Any opinions? Thanks Sonex892 for your question.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby jmattson » Tue Jan 21, 2014 10:23 pm

Bryan, did a quick Google search and it looks like Liebovich Steel and Aluminum Co. In Rockford sells 6061 T6 angle. Not sure if this helps or not.... Shipping sucks. Period. I'm lucky enough to live farther south in Springfield-Wicks is only about an hour and a half away.
Josh Mattson
Sonex #555
Springfield, Il.
jmattson
 
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Joined: Sun Aug 18, 2013 11:32 pm
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Jan 21, 2014 10:43 pm

Josh,
Found them too. Plus local Sonex builder Ken Irwin recommended this place:
http://www.metalsupermarkets.com/stores ... rd/metals/
I have a quote request into both of them.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Thu Jan 23, 2014 12:12 am

I am on the road to recovery on the lower longerons. I made up a little tool to control the spacing. I have re-clamped the longeron in place and will run the holes up to #30. The test piece tells me I should drill through the extrusion first. I was disappointed to find out that my gnu-vises were too small to clamp over the 1" angle, but as I mentioned before I am the C-clamp king.
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A piece of .025 riveted to a bigger piece of thick 7075 with AN470AD3 rivets
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Overhang tool in action
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C-clamp king
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Overhang check
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Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby jmattson » Thu Jan 23, 2014 10:54 am

Looking good Bryan, nice save!
Josh Mattson
Sonex #555
Springfield, Il.
jmattson
 
Posts: 24
Joined: Sun Aug 18, 2013 11:32 pm
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Thu Jan 23, 2014 3:02 pm

Thanks, I still have to drill to make the save official. It was too late last night. For those of you who are not going to screw up, I think the tool would still be very handy. As it worked out, if you rest the rivet heads on the top of the angle it is nicely lined up.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5040
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77
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Re: Cotton Waiex 191 - N191YX

Postby sonex892 » Thu Jan 23, 2014 3:56 pm

Well saved Bryan. Glad you caught it before updrilling.

Steve
Sonex 892
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Posts: 169
Joined: Fri Jun 03, 2011 4:49 am
Location: Port Macquarie Australia
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