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Re: Cotton Waiex 191 - N191YX
First rivets!
- Sat Sep 21, 2013 5:32 pm
- Forum: Photo Album
- Topic: Cotton Waiex 191 - N191YX
- Replies: 1560
- Views: 4183420
Re: Cotton Waiex 191 - N191YX
Skins....
- Fri Sep 20, 2013 9:45 am
- Forum: Photo Album
- Topic: Cotton Waiex 191 - N191YX
- Replies: 1560
- Views: 4183420
Re: Heat and aluminum
One chart I looked up says that either the tensile ultimate or yield strength does not change at 350F for less than 6 minutes on temperature, or for 300F at less than 30 minutes. Ageing temperature for bringing the material to the T6 condition is 320F. I have belt sanded a lot of edges, and I don't ...
- Thu Sep 19, 2013 1:13 pm
- Forum: General Discussion
- Topic: Heat and aluminum
- Replies: 3
- Views: 2637
Re: Heat and aluminum
Tony,
Either annealing or changing temper of aluminum generally requires temps in excess of 500F. I have friends at work who can more definitively answer the question for 6061-T6. I will get back to you. I think you are fine however.
Either annealing or changing temper of aluminum generally requires temps in excess of 500F. I have friends at work who can more definitively answer the question for 6061-T6. I will get back to you. I think you are fine however.
- Thu Sep 19, 2013 6:54 am
- Forum: General Discussion
- Topic: Heat and aluminum
- Replies: 3
- Views: 2637
Re: Cotton Waiex 191 - N191YX
I assembled the left hand side with similar results. This time I was careful to take the springback out of the flanges, so the bottoms were 90 and the tops matched the angle of the front spar in the plans. I did not think that would make a difference for a dry fit, as on the right side the clecoes w...
- Wed Sep 18, 2013 10:09 pm
- Forum: Photo Album
- Topic: Cotton Waiex 191 - N191YX
- Replies: 1560
- Views: 4183420
Re: Cotton Waiex 191 - N191YX
Trial assembly of right stab. Root rib seems too short though it measures up right.
- Tue Sep 17, 2013 10:54 pm
- Forum: Photo Album
- Topic: Cotton Waiex 191 - N191YX
- Replies: 1560
- Views: 4183420
Re: Left & right, plus hole alignment
All, A happy ending. Clecoing in from the root to tip, I realized it was only the last 4 or 5 holes that were poorly aligned. I clamped the hockey stick in a vise (between two pieces of pine) and gave it a tweak, and the holes lined up well at #40 and cleaned up at #30. I clamped the hockey stick fl...
- Mon Sep 16, 2013 9:02 pm
- Forum: General Discussion
- Topic: Left & right, plus hole alignment
- Replies: 4
- Views: 4054
Re: Left & right, plus hole alignment
Kerry says it is OK to flex the fingers over and updrill/rivet it that way. I may look at sliding the hockey stick slightly to share the misalignment so I can get it cleaned up with the #30 bit.
- Mon Sep 16, 2013 4:32 pm
- Forum: General Discussion
- Topic: Left & right, plus hole alignment
- Replies: 4
- Views: 4054
Re: Left & right, plus hole alignment
Thanks for the reply Keith! The bend in the hockey stick is away from all the holes, so there is no way it can affect the alignment out at the fingers. I suspect there is thermal expansion at play when the holes are piloted, and when it cools the fingers warp. More likely to be an issue in .25 than ...
- Mon Sep 16, 2013 11:33 am
- Forum: General Discussion
- Topic: Left & right, plus hole alignment
- Replies: 4
- Views: 4054
Re: Cotton Waiex 191 - N191YX
First clecoes! Found some mixed up labeling of left and right parts, plus the holes don't line up great. I posted some questions here, at sonextalk, and with Sonex tech support.
- Sun Sep 15, 2013 6:21 pm
- Forum: Photo Album
- Topic: Cotton Waiex 191 - N191YX
- Replies: 1560
- Views: 4183420
