A couple of questions

Discussion for builders, pilots, owners, and those interested in building or owning a Onex.

Re: A couple of questions

Postby lgsievila » Tue Jul 09, 2019 11:52 pm

Hi Wes,
I will be in Weatherford over Labor Day weekend-hope we can get together so I can see your project.
Loren Sievila
Conventional Gear Onex33
CAMit 2200
Dynon Skyview
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Re: A couple of questions

Postby wolfpack3 » Wed Jul 10, 2019 1:50 am

Wes,
The Tony Bingelis book shows how you can easily make a heat muff to any dimension you need and it only takes a couple of hours to make. I'll send you a PM with a picture of the one I made.
Onex
Aerovee
Taildragger
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Re: A couple of questions

Postby WaiexN143NM » Wed Jul 10, 2019 2:50 am

Hi wes,
Have you looked at aircraft spruce they sell heat muffs, also take a look at vans aircraft.
are you wrapping the pipe with some spring?
WaiexN143NM
Michael
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Re: A couple of questions (Carb Heat)

Postby WesRagle » Wed Jul 10, 2019 10:12 am

lgsievila wrote:Hi Wes,
I will be in Weatherford over Labor Day weekend-hope we can get together so I can see your project.


Hi Loren,
That would be great! Looking forward to it.

wolfpack3 wrote:Wes,
The Tony Bingelis book shows how you can easily make a heat muff to any dimension you need and it only takes a couple of hours to make. I'll send you a PM with a picture of the one I made.


Hi Wolfpack3 (if that is your real name :-)

Thanks. I'll be looking for it. Meanwhile I'll see it I can find my Tony B. books. Which book was the heat muff in?

WaiexN143NM wrote:Hi wes,
Have you looked at aircraft spruce they sell heat muffs, also take a look at vans aircraft.
are you wrapping the pipe with some spring?
WaiexN143NM
Michael


Hi Michael,

Yea, I've poked around a good bit. I'm sure Van's offerings are tilted toward their airbox, Lycoming engines, and Vetterman exhaust.

I do need to do something to maximize heat transfer from the pipe to the induction air. A spring seems like a good idea. Seems like it would swirl the air as it passes through the muff giving it more opportunity to grab some heat (as well as increasing effective surface area of course).

There are a lot of VWs flying around out there. So, I was hoping that someone who has been down this path could offer up a part number. That way I could be lazy, just pull out the credit card, and go work on something else while waiting on the "big brown truck".

I intend to have the pipes ceramic coated. So, I need to get this behind me so I can mask the area that needs to *not* be coated and send the pipes out.

Thanks Guys,

Wes
Wes Ragle
Onex #89
Conventional Gear
Long Tips
Hummel 2400 w/Zenith Carb
Prince P Tip 54x50
First Flight 06/23/2020
42.8 Hrs. as of 10/30/21
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Location: Weatherford, Tx

Re: A couple of questions

Postby Mustang » Wed Jul 10, 2019 1:17 pm

Have a great trip Loren, Tom
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Re: A couple of questions

Postby Gordon » Thu Jul 11, 2019 10:44 am

Carb Heat Muff

Hey Wes...…..I went with the Turbo Heat Muff from Aircraft Spruce p/n 05-15249.

I will send you some photos on my installation.

Gordon......Hummel 2400......Onex
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Re: A couple of questions

Postby WesRagle » Thu Jul 11, 2019 12:21 pm

Hey Gord,

The Turbo Heat Muff is a nice piece but ... I won't be flowing air while carb heat is not in use so I really want to use stainless for this application. In the interest of progress I decided to just splice the old muff back together.

I present to you Frankinmuff:

Image

It ain't purdy but I think it'll work just fine.

On another topic: I need to get some control cables on order. I really like the way you did your throttle cable. I'll shoot you an email.

One more topic. I know most of you guys are smarter than I am and would never pick up a die grinder or a dremel tool without eye protection. I also know you don't need a lecture from me. But, for the second time in a month I managed to get something in my eye. The last time was while I was cutting the canopy. I managed to get a piece of acrylic in my eye. That netted me two trips to the eye doctor and 10 days loss of the use of my right eye. I had on aviator style eye glasses, but that just isn't good enough. This time I tried not to even blink, went straight to the shower and flooded my eye with water followed by a shot of left over antibiotic/steroid lace eye drops. I hope I nipped it in the bud. Moral of the story, wear eye protection when appropriate.

Thanks,

Wes
Wes Ragle
Onex #89
Conventional Gear
Long Tips
Hummel 2400 w/Zenith Carb
Prince P Tip 54x50
First Flight 06/23/2020
42.8 Hrs. as of 10/30/21
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Re: A couple of questions (Carb Heat)

Postby WesRagle » Sat Jul 13, 2019 9:05 pm

Hi Guys,

A slow day today. Just plotting a course forward. While thinking about carb heat and how to measure the temperature rise, I thought of an old prototype gauge I have. The prototype was used for software development. I rescued it from the trash over 20 years ago. I re-rescued it from the scrap pile today. I blew all the aluminum chips off of it and got it a new battery. It measures the output of a type K T/C in degrees C. It was gratifying to see it was still pretty much in cal after all these years.

Image

Image

Wes
Wes Ragle
Onex #89
Conventional Gear
Long Tips
Hummel 2400 w/Zenith Carb
Prince P Tip 54x50
First Flight 06/23/2020
42.8 Hrs. as of 10/30/21
WesRagle
 
Posts: 899
Joined: Fri Jan 05, 2018 12:35 pm
Location: Weatherford, Tx

Re: A couple of questions

Postby XenosN42 » Sun Jul 14, 2019 4:42 pm

This question may have been answered already, if so I apologize. Do you fly in a country that requires carb heat even with carburetors that don't need it?

-- Michael
OneX N169XE
AeroVee 2.1 (no carb heat required)
-- Michael
OneX N169XE
author of the 'Flight Data Viewer'
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Re: A couple of questions

Postby WesRagle » Sun Jul 14, 2019 7:52 pm

Hi Michael,

No, I live in the USA. However, I intend to try using a Zenith carb and see how that works for me. Some would call it "an old fashion tractor carb":-) It certainly does need carb heat.

Image

We'll See,

Wes
Wes Ragle
Onex #89
Conventional Gear
Long Tips
Hummel 2400 w/Zenith Carb
Prince P Tip 54x50
First Flight 06/23/2020
42.8 Hrs. as of 10/30/21
WesRagle
 
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Joined: Fri Jan 05, 2018 12:35 pm
Location: Weatherford, Tx

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