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Homebrew O2 System

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Phil.Perry(at)netapp.com
Guest

Posted: Tue Jul 08, 2008 9:32 am Post subject: Homebrew O2 System

I live  around 32' MSL and we're getting ready to head to the mountains in a few  weeks.  Needless to say, my body has become very  acclimated to high levels of oxygen.

  

 This past weekend I  spent 1.5 hrs at 10,000ft and I felt like I had been hit in the forehead  with a baseball bat.  I just can't stay at 10K for too long, by body won't  allow it.

  

 Armed with that  knowledge, I'm looking at getting supplemental oxygen for the trip.  Have  any of you built your own O2 system?

  

 I've been trying to  come up with a design that will work, but I need to make sure the flow rates are  correct.  

  

 If you've built one,  how'd you do it?

  

 Phil

  

  

  [quote][b]

msausen

Joined: 25 Oct 2007
Posts: 559
Location: Appleton, WI USA

Posted: Tue Jul 08, 2008 10:15 am Post subject: Homebrew O2 System

Hmm, short of something goofy with a scuba tank I can’t think of anything that wouldn’t be more complicated or expensive than a portable system.  I would give some serious consideration to something from Aerox, Skyox, or someone similar.  

   

http://www.aerox.com/portable.html  

http://www.skyox.com/  

   

Michael  

       

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Perry, Phil

 Sent: Tuesday, July 08, 2008 12:28 PM

 To: rv10-list(at)matronics.com

 Subject: Homebrew O2 System  

  

  

     

I live around 32' MSL and we're getting ready to head to the mountains in a few weeks.  Needless to say, my body has become very acclimated to high levels of oxygen.  

    

   

    

This past weekend I spent 1.5 hrs at 10,000ft and I felt like I had been hit in the forehead with a baseball bat.  I just can't stay at 10K for too long, by body won't allow it.  

    

   

    

Armed with that knowledge, I'm looking at getting supplemental oxygen for the trip.  Have any of you built your own O2 system?  

    

   

    

I've been trying to come up with a design that will work, but I need to make sure the flow rates are correct.    

    

   

    

If you've built one, how'd you do it?  

    

   

    

Phil  

    

   

  

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rene(at)felker.com
Guest

Posted: Tue Jul 08, 2008 10:17 am Post subject: Homebrew O2 System

Flying out of Utah I have used a portable system for years.  My wife does not fly well above 10K.  When I built my 10 I put in the Mountain High EDS-4ip system.  A little pricy but well worth it.  I flew down to Vegas last week, 12.5 and 13.5, and the system works great.  The pulse demand stuff is worth its weight in gold……..there is no comparison between the constant flow portable system and the pulse demand.   

   

http://www.mhoxygen.com  

   

I know that was not exactly your question, but thought I would do a short pilot report…..  

   

By the way TAS at altitude, WOT, 2480……161 knots…….  

     

Rene' Felker  

RV-10 N423CF Flying  

  

801-721-6080      

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Perry, Phil

 Sent: Tuesday, July 08, 2008 11:28 AM

 To: rv10-list(at)matronics.com

 Subject: Homebrew O2 System  

  

  

     

I live around 32' MSL and we're getting ready to head to the mountains in a few weeks.  Needless to say, my body has become very acclimated to high levels of oxygen.  

    

   

    

This past weekend I spent 1.5 hrs at 10,000ft and I felt like I had been hit in the forehead with a baseball bat.  I just can't stay at 10K for too long, by body won't allow it.  

    

   

    

Armed with that knowledge, I'm looking at getting supplemental oxygen for the trip.  Have any of you built your own O2 system?  

    

   

    

I've been trying to come up with a design that will work, but I need to make sure the flow rates are correct.    

    

   

    

If you've built one, how'd you do it?  

    

   

    

Phil  

    

   

  

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Phil.Perry(at)netapp.com
Guest

Posted: Tue Jul 08, 2008 11:10 am Post subject: Homebrew O2 System

I've been looking at those too.  I plan on putting a  system into the -10 as it's finished.  Right now I'm flying rentals and  working to finish the -10.  So I need to come up with a portable  solution without spending a whole lot of money doing it.  If I'm spending  money on an O2 system, I want to make sure it an permanent system for the  RV-10.

  

 On the simple home brew side, I was thinking along the  lines of using a Benzomatic disposable bottle.

  

 http://images.orgill.com/200x200/7258841.JPG

  

 I've got a system in my boat that allows me to put  99.5% pure oxygen into my live well.  Getting oxygen is as simple as going  to Home Depot.  I get ~24hrs out of each bottle, though the run-time would  be significantly less if I was using it in the air.  I've got all the  hardware to connect to the bottle, I just don't have a flow indicator/regulator  to put inline.

  

 The attractive part is that you can dispose of your bottle  once you're at the destination.  If you run out on your road trip, you just  have to stop by Lowes or Home Depot to pickup another  bottle.

  

 I know it's not the perfect system.  But at 10,000  feet in a rented airplane, it could be a very convenient solution for the  once-a-year long cross county.  We're not talking about unreasonably high  altitudes and this is just a simple way to get some supplemental oxygen for a  very reasonable price tag.

  

 Phil

  

  

  

  

  

  



   From: RV Builder (Michael Sausen)  [mailto:rvbuilder(at)sausen.net] 

Sent: Tuesday, July 08, 2008 1:12  PM

To: rv10-list(at)matronics.com

Subject: RE: RV10-List:  Homebrew O2 System

 

  

Hmm,  short of something goofy with a scuba tank I can’t think of anything that  wouldn’t be more complicated or expensive than a portable system.  I would  give some serious consideration to something from Aerox, Skyox, or someone  similar. 

  

http://www.aerox.com/portable.html 

http://www.skyox.com/ 

  

Michael 

    

From:  owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Perry,  Phil

Sent: Tuesday, July 08, 2008 12:28 PM

To:  rv10-list(at)matronics.com

Subject: Homebrew O2  System



 

   

I live  around 32' MSL and we're getting ready to head to the mountains in a few  weeks.  Needless to say, my body has become very acclimated to high  levels of oxygen.

  

 

  

This past weekend I  spent 1.5 hrs at 10,000ft and I felt like I had been hit in the forehead  with a baseball bat.  I just can't stay at 10K for too long, by body won't  allow it.

  

 

  

Armed with that  knowledge, I'm looking at getting supplemental oxygen for the trip.  Have  any of you built your own O2 system?

  

 

  

I've been trying to  come up with a design that will work, but I need to make sure the flow rates are  correct.  

  

 

  

If you've built one,  how'd you do it?

  

 

  

Phil

  

 

 

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Tim Olson

Joined: 25 Jan 2007
Posts: 2882

Posted: Tue Jul 08, 2008 11:49 am Post subject: Homebrew O2 System

I've been happy with a portable with the Precise Flight demand

conservers....you can see a photo here, along with info:

http://www.myrv10.com/tips/accessories/oxygen/index.html



I think that if you're really going to use the system a ton, like

if you live in the mountains and fly over 10K all the time, I'd

probably go with a built-in Mountain High system, as they're

pretty sweet.  But, the precise flight demand conservers save

tons of O2 over what a constant flow system uses, and they

require no electricity, so you're not dependent on anything.

But really, I think that a built-in O2 system really is something

that I'd only look at if you actually lived in an area that

forced you into using it all the time.  You have more

hassle to build it in, more hassle to fill it up, and more

W&B considerations if you're mounting it in the usual place...

the tail.  I find that I only bring the O2 kit along on maybe

6 or 8 flights a year, because if I'm just going 200-300

miles, I may as well just plan to fly 8500-9500' and go

without.   it's nice to be able to yank all that and just

throw it on a shelf once in a while. Lots less money, too.



A semi-permanent system would be ok too....and I'd have

no complaints...as long as the bottle can be yanked easily.

Tim Olson - RV-10 N104CD - Flying

do not archive

Perry, Phil wrote:

 	  Quote: 	
		   I've been looking at those too.  I plan on putting a system into the -10 

 as it's finished.  Right now I'm flying rentals and working to finish 

 the -10.  So I need to come up with a portable solution without spending 

 a whole lot of money doing it.  If I'm spending money on an O2 system, I 

 want to make sure it an permanent system for the RV-10.

  

 On the simple home brew side, I was thinking along the lines of using a 

 Benzomatic disposable bottle.

  

 http://images.orgill.com/200x200/7258841.JPG

  

 I've got a system in my boat that allows me to put 99.5% pure oxygen 

 into my live well.  Getting oxygen is as simple as going to Home Depot.  

 I get ~24hrs out of each bottle, though the run-time would be 

 significantly less if I was using it in the air.  I've got all the 

 hardware to connect to the bottle, I just don't have a flow 

 indicator/regulator to put inline.

  

 The attractive part is that you can dispose of your bottle once you're 

 at the destination.  If you run out on your road trip, you just have to 

 stop by Lowes or Home Depot to pickup another bottle.

  

 I know it's not the perfect system.  But at 10,000 feet in a rented 

 airplane, it could be a very convenient solution for the once-a-year 

 long cross county.  We're not talking about unreasonably high altitudes 

 and this is just a simple way to get some supplemental oxygen for a very 

 reasonable price tag.

  

 Phil

  

  

  

  

  

  

 

 ------------------------------------------------------------------------

 *From:* RV Builder (Michael Sausen) [mailto:rvbuilder(at)sausen.net]

 *Sent:* Tuesday, July 08, 2008 1:12 PM

 *To:* rv10-list(at)matronics.com

 *Subject:* RE: Homebrew O2 System

 

 Hmm, short of something goofy with a scuba tank I can’t think of 

 anything that wouldn’t be more complicated or expensive than a portable 

 system.  I would give some serious consideration to something from 

 Aerox, Skyox, or someone similar.

 

  

 

 http://www.aerox.com/portable.html

 

 http://www.skyox.com/

 

  

 

 Michael

 

  

 

 *From:* owner-rv10-list-server(at)matronics.com 

 [mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Perry, Phil

 *Sent:* Tuesday, July 08, 2008 12:28 PM

 *To:* rv10-list(at)matronics.com

 *Subject:* Homebrew O2 System

 

  

 

 I live around 32' MSL and we're getting ready to head to the mountains 

 in a few weeks.  Needless to say, my body has become very acclimated to 

 high levels of oxygen.

 

  

 

 This past weekend I spent 1.5 hrs at 10,000ft and I felt like I had been 

 hit in the forehead with a baseball bat.  I just can't stay at 10K for 

 too long, by body won't allow it.

 

  

 

 Armed with that knowledge, I'm looking at getting supplemental oxygen 

 for the trip.  Have any of you built your own O2 system?

 

  

 

 I've been trying to come up with a design that will work, but I need to 

 make sure the flow rates are correct. 

 

  

 

 If you've built one, how'd you do it?

 

  

 

 Phil

 

  

 

  

 

 * *

 

 * *

 

 **

 

 **

 

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 *http://www.matronics.com/Navigator?RV10-List*

 

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 *http://forums.matronics.com*

 

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 *<>*

 

 **

 

 *http://www.matronics.com/contribution*

 

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 href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

 href="http://forums.matronics.com">http://forums.matronics.com

 href="http://www.matronics.com/contribution">http://www.matronics.com/c

 *

 

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scottmschmidt(at)yahoo.co
Guest

Posted: Tue Jul 08, 2008 1:39 pm Post subject: Homebrew O2 System

Perriair is the only cheap portable system I know of.  

http://burrowowl.net/shimmie/view.php?image_id=6053

 

If it's good enough for Mel Brooks it must be good for us. 

Do not achive

Scott Schmidt

---

planesmith(at)hotmail.com
Guest

Posted: Tue Jul 08, 2008 2:14 pm Post subject: Homebrew O2 System

If cost is the primary concern C Areox has a refilling system that allow you to refill their portable systems for much less that FBO prices. The savings on refilling will easily pay for a certified system.

  

 Vern (#324 finishing)

 do not archive





   

 Date: Tue C 8 Jul 2008 14:36:30 -0700

From: scottmschmidt(at)yahoo.com

Subject: Re: Homebrew O2 System

To: rv10-list(at)matronics.com

   .ExternalClass DIV {;}    Perriair is the only cheap portable system I know of.  

http://burrowowl.net/shimmie/view.php?image_id=6053

  

If it's good enough for Mel Brooks it must be good for us. 

Do not achive

Scott Schmidt 

  

The i’m Talkaton. Can 30-days of conversation change the world? Find out now.

robin1(at)mrmoisture.com
Guest

Posted: Tue Jul 08, 2008 7:13 pm Post subject: Homebrew O2 System

I have yet to fly with my O2 system but a simple built in is not that expensive, out of the way and very functional. I don’t recall what my costs were for parts (SNF Discount) but it was not that much more than cobbling something together . To mitigate some of the W&B issues you can go with a much smaller bottle.  Refilling on the field with a remote filler (pictured) is simple. I have yet to place the user side receptacles but two plus the valve/gauge will probably be facing forward on the center console map box and the two rear pax on the back side of the map box. My other option was in the OH console.  

   

http://www.painttheweb.com/rv-10/aeroxO2.htm  

   

Out west I guess we do a lot more mid-altitude flying and having O2 at night above 5,000 MSL is a real eye opener.   

The other day in my 6A I was on my regular commute but had to scud run out of my home field due to the fires in CA.  I knew there was a BIG opening 40 miles south where I could climb to my regular 7.5K. In another 40 miles after he opening I ran into a wall of smoke and had to pop up to 11.5. (Yes I did call WX-Brief)  I was at 11.5 for about 30 minutes before descending to my destination. I don’t know about you but anytime I am at altitude I keep asking myself…”Am I thinking clearly, am I thinking clearly” No different than my deep scuba days. Sure would have been nice to dial up the O2 to eliminate that concern.  

   

Robin  

Do Not Archive  

   

   

   

   

      [quote][b]

bryanflood

Joined: 13 Aug 2006
Posts: 9

Posted: Fri Jul 11, 2008 9:27 pm Post subject: Re: Homebrew O2 System

Hi guys, I use medical O2 tanks filled off a welding bottle. They are dirt cheap and so are the medical regulators which work great too, the only catch is that I have to use a conserving canula b/c I'm too cheap to spring for conserver on the regulator system. I probably have about 150 dollars in two tanks, a regulator, a tee, a flow meter and two canulas. The only difference on the medical tanks is they have a different thread and stem, although you can order them with the threads for the aviation stem if you want to spend more $. The transfill adapter was just over $100 and I get about 8 bottle fills before my tank gets down to 1800 psi on $25 of O2. Each bottle seems to last someplace over 2 hours at 1lpm per person which I use above 12K. The one disadvantage to medical regulators is that I have to use a conversion chart for the flow rate but it's really easy. ANother is that refilling on a trip is harder b/c you need to bring an adapter to fit the filler at an FBO and pay upwards of $40 per tanks some places, a total rip.  The tanks are so cheap to buy and fill you might as well pick up a few. If you don't already have a welding tank I guess you need to buy that too.

_________________
Rv-9A completed.

coop85(at)cableone.net
Guest

Posted: Sat Jul 12, 2008 6:31 am Post subject: Homebrew O2 System

Bryan,

   This sounds pretty good.  Do the medical bottles weigh any more than an

aviation system?



Marcus

Do not archive



--

bryanflood

Joined: 13 Aug 2006
Posts: 9

Posted: Mon Jul 14, 2008 9:13 am Post subject: Re: Homebrew O2 System

The medical bottles are not the fancy carbon wound bottles from my experience they are only the Aluminum bottles but I could be wrong. If you search the internet for medical supplies you can find them. My buddy and I compared our bottles, his was an expensive aluminum aviation bottle, mine an aluminum medical bottle. From what I could tell the weights, rating, and everything but the threads and stem (plus the stickers) are identical. The carbon bottles are infact lighter but more expensive. In fact the sizes offered are the same, but the two industries have different names for the bottle sizes sometimes, probably to try to create product differentiation where none exists. Again you can order the medical bottles with special threads for the aviation stems, so honestly I see no difference. There is no question the aviation bottels are nice and they do have everthing set-up for aviation, if I had unlimited funds I would go that route. But I'm on a budget, so I went the medical route and they work great. The one thing I proabably will buy sometime soon from an aviation house is a mounting strap, but they are expensive and I have been putting it off.  



Bryan

_________________
Rv-9A completed.

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