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Builder's workshop March 1&2

I am planning to go. Anybody else?
by Bryan Cotton
Thu Jan 16, 2014 10:31 am
 
Forum: General Discussion
Topic: Builder's workshop March 1&2
Replies: 22
Views: 10710

Re: Roth Waiex #197

Very cool. Do us prebuilt spar guys take that picture too? Seems like cheating.
by Bryan Cotton
Thu Jan 16, 2014 9:45 am
 
Forum: Waiex
Topic: Roth Waiex #197
Replies: 176
Views: 147373

Re: Most crash worthy Sonex build?

Hi, One of the single most important things for vertical impacts is having a crush zone underneath you. So, if the belly hits, there should be volume underneath you to fold up, reducing the acceleration on your spine as compared to the belly skin. I would assume the lowered seat mod reduces this, so...
by Bryan Cotton
Thu Jan 16, 2014 8:35 am
 
Forum: Sonex
Topic: Most crash worthy Sonex build?
Replies: 16
Views: 42681

Re: Pulley in aft fuselage, vertical Z #1

Thanks guys, I will clearance those parts.
by Bryan Cotton
Wed Jan 15, 2014 9:29 pm
 
Forum: General Discussion
Topic: Pulley in aft fuselage, vertical Z #1
Replies: 13
Views: 6861

Re: Pulley in aft fuselage, vertical Z #1

Ryan,
What you say all makes logical sense. What is odd is the hole on the F27-01 for the pulley is shown as 3/4 on WIX-F28 but is 1" on the part. Also, if I use the 9 7/8 measurement shown on WIX-F26 view J-J then I do not end up centered on the hole.
by Bryan Cotton
Tue Jan 14, 2014 11:38 pm
 
Forum: General Discussion
Topic: Pulley in aft fuselage, vertical Z #1
Replies: 13
Views: 6861

Re: Cotton Waiex 191 - N191YX

Fairleads riveted in. Will be drilling the longeron angles soon.
by Bryan Cotton
Tue Jan 14, 2014 10:27 pm
 
Forum: Photo Album
Topic: Cotton Waiex 191 - N191YX
Replies: 1596
Views: 4834831

Pulley in aft fuselage, vertical Z #1

This is a Waiex question, but I think probably common to straight tails too. My plans show the pulley mounting over a little hole. The holes in my Z channels are a lot bigger than shown on the plans and I will miss a couple of rivets. I am going to email Kerry tonight, but I would also like to work ...
by Bryan Cotton
Tue Jan 14, 2014 9:55 pm
 
Forum: General Discussion
Topic: Pulley in aft fuselage, vertical Z #1
Replies: 13
Views: 6861

Re: Pre-assembled Main Spar

I have an old HF air chisel I bought as a kid, plus a fine collection of rivet guns. The air chisel hits fast and light, the rivet gun hits slower and harder. The latter is way better for control. Also, a few good hits will set the rivet better than many light hits as it has less time to work harden...
by Bryan Cotton
Tue Jan 14, 2014 7:40 am
 
Forum: Onex
Topic: Pre-assembled Main Spar
Replies: 24
Views: 16357

Re: Losing the training wheel.

You can do an inverted spin in anything, in theory. Most inverted spins in the Pitts were a result of me screwing something up, like the Immelmann or vertical rolls were really hard for me. Airplanes without inverted systems will not be happy, because you are inverted! If the instructor is comfortab...
by Bryan Cotton
Sun Jan 12, 2014 7:48 pm
 
Forum: General Discussion
Topic: Losing the training wheel.
Replies: 70
Views: 36431

Re: Losing the training wheel.

My first inverted spin was inadvertent. We were doing Immelmanns and mine were rushed and sloppy. He wanted me to pause at the top and make sure I was level inverted before I rolled out. So I paused, looked left and right, and I was nice and level. I had managed to stop with my nose up a few degrees...
by Bryan Cotton
Sun Jan 12, 2014 6:44 pm
 
Forum: General Discussion
Topic: Losing the training wheel.
Replies: 70
Views: 36431
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