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Airflow control on the Oil Cooler

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philperry9(at)gmail.com
Guest

Posted: Sat Oct 30, 2010 3:26 pm Post subject: Airflow control on the Oil Cooler

Quick question as I'm doing some planning.



What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?



Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.

 

I'm wondering if I should dedicate a spot on the panel for the push/pull cable.



Thanks,

Phil

  [quote][b]

Robin(at)PaintTheWeb.com
Guest

Posted: Sat Oct 30, 2010 3:55 pm Post subject: Airflow control on the Oil Cooler

When you don’t have it and you need it you have few options.   

It really allows you to optimize oil temps. Better now than later.  

   

Robin  

     

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

 Sent: Saturday, October 30, 2010 4:17 PM

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

 Subject: Airflow control on the Oil Cooler  

  

   

Quick question as I'm doing some planning.

 

 What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?

 

 Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.

 

 I'm wondering if I should dedicate a spot on the panel for the push/pull cable.

 

 Thanks,

 Phil

 

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= Use the Matronics List Features Navigator to browse[/b] 	
[/b][/quote] Day Browse, Chat, FAQ,[/b]w.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV1[/quote] =======================[/b][/quote] m">http://forums.matronics.com[/b][/quote]                    -Matt Dralle, List A; http://www.matronics.com/contribution[/b][/quote] =======================[/b] [/quote]      

  

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amekler

Joined: 07 Oct 2010
Posts: 164

Posted: Sat Oct 30, 2010 4:55 pm Post subject: Airflow control on the Oil Cooler

I live in New Hampshire and I think it is not a necessity but nice to have.  

Alan  

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Robin Marks

 Sent: Saturday, October 30, 2010 7:53 PM

 To: rv10-list(at)matronics.com

 Subject: RE: Airflow control on the Oil Cooler  

  

   

When you don’t have it and you need it you have few options.   

It really allows you to optimize oil temps. Better now than later.  

   

Robin  

     

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

 Sent: Saturday, October 30, 2010 4:17 PM

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

 Subject: Airflow control on the Oil Cooler  

  

   

Quick question as I'm doing some planning.

 

 What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?

 

 Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.

 

 I'm wondering if I should dedicate a spot on the panel for the push/pull cable.

 

 Thanks,

 Phil   	  Quote: 	
		    	
 	  Quote: 	
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partner14

Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas

Posted: Sat Oct 30, 2010 6:29 pm Post subject: Airflow control on the Oil Cooler

I love it.... made my own... 95% of the time, you tell me the oil temp you want, and I can deliver it.  I found that without it in the winter time you may not be able to get your oil temp much over 160 degrees.... if that.  With it, you can dial in 180 on the same day with the same conditions.

 Don



--- On Sat, 10/30/10, Phillip Perry <philperry9(at)gmail.com> wrote:



  	  Quote: 	
		  

From: Phillip Perry <philperry9(at)gmail.com>

Subject: Airflow control on the Oil Cooler

To: rv10-list(at)matronics.com

Date: Saturday, October 30, 2010, 4:16 PM



 Quick question as I'm doing some planning.



What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?



Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.



I'm wondering if I should dedicate a spot on the panel for the push/pull cable.



Thanks,

Phil

 	  Quote: 	
		  



=nofollow target=_blank>http://www.matronics.com/Navigator?RV10-List

et=_blank>http://forums.matronics.com

llow target=_blank>http://www.matronics.com/contribution



	


	


         [quote][b]

_________________
Don A. McDonald
40636

jesse(at)saintaviation.co
Guest

Posted: Mon Nov 01, 2010 5:55 am Post subject: Airflow control on the Oil Cooler

I'm torn in my mind as to whether it is necessary or not.  Really, the vernatherm in the engine should control the temperature of the oil to what it needs to be by allowing or not allowing oil to go through the cooler (just like the thermostat in your car).  On very cold days in the northern states, the small amount of oil that is allowed to go through the cooler to keep the oil from congealing in the cooler might be enough to keep the temperatures down, so blocking the airflow could likely cause a difference there.  Also, for the same reason, on cold days it could allow you to get your oil temperatures up before takeoff so you don't have to run so long on the ground.  My main question is, what happens if the cable becomes disconnected during flight, especially on a warm day.  If the valve is designed in a way that it will stay open, then I wouldn't be concerned, but if it could possibly close or, even worse, get jammed in the closed position, then I would be very careful in making the decision whether or not to install it.



 Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com (jesse(at)saintaviation.com)

C: 352-427-0285

F: 815-377-3694 

 

On Oct 30, 2010, at 7:16 PM, Phillip Perry wrote:

[quote]Quick question as I'm doing some planning.



What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?



Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.

 

I'm wondering if I should dedicate a spot on the panel for the push/pull cable.



Thanks,

Phil

   	  Quote: 	
		  



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/contribution



	
[b]

carl.froehlich(at)verizon
Guest

Posted: Mon Nov 01, 2010 6:45 am Post subject: Airflow control on the Oil Cooler

I have a butterfly oil cooler air valve in my 8A, and am putting one in the 10 as well.  I found it very useful to get oil temps up to 180 in the wintertime.  

   

Jesse makes some good points.  Some thoughts:  

<![if !supportLists]>-          <![endif]>As we know, the veratherm valve does not stop oil flow through the cooler, it just opens a bypass for oil to go around the cooler as well as through it.  I found that on cold days there was still enough oil flow through the cooler to keep temps well below 180 degrees.    

<![if !supportLists]>-          <![endif]>On the issue of the air valve sticking shut, I designed the butterfly valve such that some air still got to the cooler even with the valve fully shut.  Another thought is if the valve sticks shut, you probably had it shut because it was a cold day so you should be ok to make a convenience landing someplace to fix it.  In cruise on cold days with the valve fully shut I get 180 degrees.  I never had the valve stick (open or shut).  

<![if !supportLists]>-          <![endif]>Oil pre-heat is a must on cold days.  I have the electric strips that bond to the sump that Van’s sells.  They work very well and I recommend them.  I plug them in an hour or two before takeoff, longer on really cold days.  DO NOT leave them plugged for prolonged periods as they will allow the moisture driven off from the oil to condense on the cooler engine parts higher up (e.g. cam shaft).     

   

Carl  

       

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse Saint

 Sent: Monday, November 01, 2010 9:53 AM

 To: rv10-list(at)matronics.com

 Subject: Re: Airflow control on the Oil Cooler  

  

  

   

I'm torn in my mind as to whether it is necessary or not.  Really, the vernatherm in the engine should control the temperature of the oil to what it needs to be by allowing or not allowing oil to go through the cooler (just like the thermostat in your car).  On very cold days in the northern states, the small amount of oil that is allowed to go through the cooler to keep the oil from congealing in the cooler might be enough to keep the temperatures down, so blocking the airflow could likely cause a difference there.  Also, for the same reason, on cold days it could allow you to get your oil temperatures up before takeoff so you don't have to run so long on the ground.  My main question is, what happens if the cable becomes disconnected during flight, especially on a warm day.  If the valve is designed in a way that it will stay open, then I wouldn't be concerned, but if it could possibly close or, even worse, get jammed in the closed position, then I would be very careful in making the decision whether or not to install it.    

   

      

Jesse Saint

 Saint Aviation, Inc.

 jesse(at)saintaviation.com (jesse(at)saintaviation.com)

 C: 352-427-0285

 F: 815-377-3694   

  

       

On Oct 30, 2010, at 7:16 PM, Phillip Perry wrote:  

  



 

   

Quick question as I'm doing some planning.

 

 What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?

 

 Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.

 

 I'm wondering if I should dedicate a spot on the panel for the push/pull cable.

 

 Thanks,

 Phil

 

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


  

   

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        [quote][b]

partner14

Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas

Posted: Mon Nov 01, 2010 6:47 am Post subject: Airflow control on the Oil Cooler

I made my butterfly valve easy to remove.. so that is what I have done in the past... remove it in the summer months.... also, I made the butterfly smaller than the openning by 1/4" to 3/8" so that if it were to fall off the shaft and lodge itself in the scat, there would still be airflow... the ole "ask me how I know" statement applies here.... when that did happenned, it was in the winter and the oil temps were perfect, so I didn't mess with it for a couple of weeks.  Since then I changed how it's mounted so it should never come loose again.

 Don McDonald



--- On Mon, 11/1/10, Jesse Saint <jesse(at)saintaviation.com> wrote:



  	  Quote: 	
		  

From: Jesse Saint <jesse(at)saintaviation.com>

Subject: Re: Airflow control on the Oil Cooler

To: rv10-list(at)matronics.com

Date: Monday, November 1, 2010, 6:52 AM



 I'm torn in my mind as to whether it is necessary or not.  Really, the vernatherm in the engine should control the temperature of the oil to what it needs to be by allowing or not allowing oil to go through the cooler (just like the thermostat in your car).  On very cold days in the northern states, the small amount of oil that is allowed to go through the cooler to keep the oil from congealing in the cooler might be enough to keep the temperatures down, so blocking the airflow could likely cause a difference there.  Also, for the same reason, on cold days it could allow you to get your oil temperatures up before takeoff so you don't have to run so long on the ground.  My main question is, what happens if the cable becomes disconnected during flight, especially on a warm day.  If the valve is designed in a way that it will stay open, then I wouldn't be concerned, but if it could possibly close or, even  worse, get jammed in the closed position, then I would be very careful in making the decision whether or not to install it. 



  Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com (jesse(at)saintaviation.com)

C: 352-427-0285

F: 815-377-3694 



  On Oct 30, 2010, at 7:16 PM, Phillip Perry wrote:

  	  Quote: 	
		  Quick question as I'm doing some planning.



What's the general consensus on the need for a push/pull baffle to control airflow to the oil cooler on the RV-10?



Have some of the folks had issues at altitude with cold oil temps?  I'm pretty sure some of the ground ops in the northern states have reported issues with cooler temps.



I'm wondering if I should dedicate a spot on the panel for the push/pull cable.



Thanks,

Phil

 	  Quote: 	
		  



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/contribution



	




ollow target=_blank>www.aeroelectric.com

/" rel=nofollow target=_blank>www.buildersbooks.com

ofollow target=_blank>www.homebuilthelp.com

llow target=_blank>http://www.matronics.com/contribution

=nofollow target=_blank>http://www.matronics.com/Navigator?RV10-List

et=_blank>http://forums.matronics.com

	


	


         [quote][b]

_________________
Don A. McDonald
40636

philperry9(at)gmail.com
Guest

Posted: Thu Nov 04, 2010 6:44 am Post subject: Airflow control on the Oil Cooler

Along the same lines, are there any pireps regarding Van's oil cooler vs others that are out there? 



Phil

  [quote][b]

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Thu Nov 04, 2010 8:59 am Post subject: Re: Airflow control on the Oil Cooler

There seems to be a preference for the AirFlow Performance 2006X.  Recalling stories from the RV-10 HQ at OSH, I believe that it keeps temps lower 10-15 degrees.  But since I'm not flying yet, I have no first hand knowledge.



bob

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

jesse(at)saintaviation.co
Guest

Posted: Thu Nov 04, 2010 9:31 am Post subject: Airflow control on the Oil Cooler

Does anybody have a link for the people who sell the butterfly valve for the -10?



do not archive



Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com

C: 352-427-0285

F: 815-377-3694

Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Thu Nov 04, 2010 10:20 am Post subject: Airflow control on the Oil Cooler

Hey Jesse,



Here's one:

http://www.nonstopaviation.com/rv10_controller_cooler_p_14566.html?osCsid=3b72614996a7569bab65773be35830a5



Later, - Lew



---

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Thu Nov 04, 2010 2:48 pm Post subject: Airflow control on the Oil Cooler

Nonstopaviation.com  and it's resold by Avery too.



bob



--

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

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