Cotton Waiex 191 - N191YX

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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Mon Nov 19, 2018 4:25 pm

Seeking feedback on my plumbing:
mixture clearance.jpg


fuel line from the other side.jpg
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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Re: Cotton Waiex 191 - N191YX

Postby N111YX » Mon Nov 19, 2018 7:15 pm

That's probably the most direct fuel routing I have seen!

I'm sure you have a plan for the rubbing of the fuel line on the engine mount.

Is that an inline filter?
Kip

2010 Waiex 0082 (first flight May 2010)
Jabiru 3300 #1637 and #3035
Dynon D-180
Becker radios
Garmin GDL 82 ADS-B
1050 hours
48 states visited
Based near Atlanta

Also flying a...
2000 Kolb Firestar II, Rotax 503, 575 hours
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Mon Nov 19, 2018 8:01 pm

Kip,
It is an inline filter:
https://www.jegs.com/i/JEGS/555/15034/10002/-1

Have some ideas on anti-chafe. The rubber carb mount has more flex than the fuel line.

Edit: I countersunk the outlet end of the filter so there would not be a corner to catch water.
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
 
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Location: C77

Re: Cotton Waiex 191 - N191YX

Postby Darick » Mon Nov 19, 2018 9:11 pm

Then obviously you also decided not to monitor fuel flow. I asked a local two time RV builder about a fuel flow meter. He had a lose connection one time and landed immediately because of sudden unusually high fuel flow. He said it saved his life since the fuel was leaking in the engine compartment and was amazed he didn’t have a fire. That was enough reason for me to add one.

And since I had no experience with leaning, I thought it would give me an extra parameter to assure me I was in the advertised range.
Darick Gundy
Sonex #1646
N417DG
Taildragger, Aerovee, center stick, Prince P-Tip Prop
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Mon Nov 19, 2018 9:30 pm

Correct, no fuel flow. I don't think it is a super important measurement. The Pawnees and the Arrow I used to fly had them, but nothing else.

Everything you add is another potential failure.
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: 5045
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Nov 20, 2018 1:58 pm

One of the issues I had was my mixture control hit the CDI. So, I made another angle spacer.
another angle spacer.jpg


The first one was 30 degrees. That was too much so I made a 20 degree one.
controls in.jpg


It's a miss! Onto the next task.
it's a miss.jpg
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: 5045
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Tue Nov 20, 2018 8:29 pm

I did a little video of an interoperability test - mixture, throttle, fuel shutoff.
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: 5045
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Cotton Waiex 191 - N191YX

Postby dtwolcott » Wed Nov 21, 2018 10:32 am

Brian you are a great experimentalist. Just goes to show if you make enough mistakes eventually you will get it right, you just have to be persistent. I appreciate your sharing of your ideas.
Don
Don
Waiex 132 N132YX
3MY
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Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Wed Nov 21, 2018 1:17 pm

Thanks Don! Also for the record those are all unplanned design features, not mistakes!
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: 5045
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Cotton Waiex 191 - N191YX

Postby Bryan Cotton » Sun Nov 25, 2018 1:57 am

Rudder cable exit fairings. Between F and B- I became a true believer in annealing.
rudder cable fairings.jpg
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: 5045
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

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