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Re: Cotton Waiex 191 - N191YX

PostPosted: Sun Feb 21, 2021 11:09 am
by n307tw
Bryan Cotton wrote:Flying to Oshkosh next year is my goal! Same as the last 5 years.

I chuckled because I have been saying this for 2 years now. Keep up the great work!

Re: Cotton Waiex 191 - N191YX

PostPosted: Sun Feb 21, 2021 9:02 pm
by Bryan Cotton
I made my own adel style clamp and riveted it to the TC mount. A flush #6 screw gives another attach point and clamps it to the tube.
bracket riveted.jpg


Top view mounted. Note the dimple and rivet tail are in a spot where the connectors allow some clearance.
bracket installed top.jpg


Bottom view. I used a metal stop nut and countersunk a small 1/8" shim for the dimples.
bracket installed bottom.jpg


The top gang of 4 are for CHTs. The bottom will be EGTs. I swapped the male-female connector definition between the two.
IMG_20210221_173045093.jpg

Re: Cotton Waiex 191 - N191YX

PostPosted: Sun Feb 21, 2021 9:31 pm
by Sonex1517
Lookin’ good Bryan!

You may be ready for Oshkosh!

Re: Cotton Waiex 191 - N191YX

PostPosted: Sun Feb 21, 2021 9:51 pm
by Bryan Cotton
Sonex1517 wrote:Lookin’ good Bryan!

You may be ready for Oshkosh!

Thanks Robbie! Did I mention my goal is to fly to Oshkosh this year?

Re: Cotton Waiex 191 - N191YX

PostPosted: Sun Feb 21, 2021 10:52 pm
by Sonex1517
Maaaaaybe.....but I figure if we all harass you then you may actually do it!

Re: Cotton Waiex 191 - N191YX

PostPosted: Fri Feb 26, 2021 11:34 am
by Bryan Cotton
CHT on top, EGT on bottom.
MFD TCs terminated.jpg


CHTs are done. I've started the engine side EGTs.
CHT done.jpg


I've fabricated my com and transponder antenna cables. My nav cable is terminated at the radio end and cut to rough length currently.

Re: Cotton Waiex 191 - N191YX

PostPosted: Fri Feb 26, 2021 2:48 pm
by jjbardell
Looking good!

One thing you may want to consider is putting a protection layer between your clamps / zip ties, etc. and your engine mount. Zip ties have glass/abrasive material in them, and raw metal and will wear through the paint and expose the mount, resulting in corrosion risk. Personally, I don't use zip ties anymore and use lacing string now.

Lacing string: https://www.aircraftspruce.com/catalog/ ... gTapes.php

Re: Cotton Waiex 191 - N191YX

PostPosted: Fri Feb 26, 2021 11:07 pm
by Scott Todd
I've heard that about zip ties before. When I built my Kitfox 23 years ago, I didn't know better and used them. Several people have seen them and told me I shouldn't use them. So I decided to turn it into an experiment. After all, it says so right inside the cockpit in big 2" letters. I move them gently and look every year at condition. I have yet to see ant wear marks in the powder coating, on the hoses, or wires. I think 1 or 2 have broken off over the years and been replaced. Your mileage may vary but I've never seen them wear into anything. If they are, you may have some vibration issues that need to be addressed.

Re: Cotton Waiex 191 - N191YX

PostPosted: Sat Feb 27, 2021 9:56 am
by Bryan Cotton
I've actually seen Sikorsky go back and forth on tie string vs tie wraps on the Blackhawks. They do use a lot of tie wraps. I was considering string just due to the heat, but I have the zip ties in my box. I have been thinking about getting a roll of string however.

Re: Cotton Waiex 191 - N191YX

PostPosted: Sat Feb 27, 2021 4:18 pm
by Bryan Cotton