VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 01-28-2019, 02:37 PM
Lynnb's Avatar
Lynnb Lynnb is offline
 
Join Date: Jan 2014
Location: Cedar Hill, TX
Posts: 244
Default Airflow Systems A/C Return Air

Did anyone build in return air from the interior cabin with there A/C install, or are you just pulling air from the tail? Just curious how people have handled this.

Thanks,
Lynn
__________________
RV-10 in Process
Reply With Quote
  #2  
Old 01-28-2019, 02:47 PM
ppilotmike's Avatar
ppilotmike ppilotmike is offline
 
Join Date: Jan 2010
Location: Denver, CO
Posts: 1,904
Default

Quote:
Originally Posted by Lynnb View Post
Did anyone build in return air from the interior cabin with there A/C install, or are you just pulling air from the tail? Just curious how people have handled this.

Thanks,
Lynn
Lynn,

I know that South Florida Sport Aviation http://www.sfsportaviation.com/, who's an advertiser on this site, sells an overhead console that does send cabin air as the return air back to the AC unit. I believe the AC unit they package is the Airflow Performance set up. My airplane will not have AC, but I am using their overhead console and intend to route a tie-in for an ice-box style "poor man's" AC unit, for use during hot days. Hope that helps.
__________________
Mike Rettig
EAA Chapter 301 www.eaa301.org
VAF Dues Current: Paid for 2019 on 12/03/18
RV-10 (41PX Reserved) Fuselage
http://www.mykitlog.com/users/index....ig&project=803
F-14 (Pedal Plane - Daughter's Project) "Flying"
https://www.youtube.com/watch?v=zKCyX2FXrlw
Reply With Quote
  #3  
Old 01-28-2019, 03:00 PM
Lynnb's Avatar
Lynnb Lynnb is offline
 
Join Date: Jan 2014
Location: Cedar Hill, TX
Posts: 244
Default

Thanks Mike. I already have the airflow systems and have it plumbed to a custom overhead, just been thinking about return air.

Lynn
__________________
RV-10 in Process
Reply With Quote
  #4  
Old 01-28-2019, 04:01 PM
AviatorJ AviatorJ is offline
 
Join Date: Feb 2015
Location: Oklahoma City
Posts: 735
Default

Do you have the standard or larger evaporator? If you have the larger one, I've been working with Bill on a solution. Currently it's two transition pieces that cut through the upper Bulkhead piece and go straight into the unit.

If it's the standard I would call Bill and see what he suggests. You defiantly want it to come from the cabin vs the tail.
__________________
Justin
RV-10, N10JW
First Flight 2/14/2019
http://operationrv10.blogspot.com/
Reply With Quote
  #5  
Old 01-28-2019, 04:16 PM
woxofswa woxofswa is offline
 
Join Date: Sep 2007
Location: Mesa Arizona
Posts: 525
Default

I have a knockout in the upper aft bulkhead piece that transitions via a fiberglass channel to the blower intake. A frame juts out two inches and then gets covered by a headliner piece that Velcro’s to it. It allows for an air filter and air intake around the perimeter.

Haven’t noticed a whole lot of difference in flight but it definitely seemed to enhance performance taxiing out in a heat soaked airplane, and even more when taxiing in in PHX where the cabin air is 80ish and the OAT is 110ish. Haven’t really noticed a noise difference.
__________________
Myron Nelson
Mesa, AZ
N24EV
RV-10 BPE, Dynon, Airflow systems A/C
First flight May 10, 2014

Last edited by woxofswa : 01-29-2019 at 04:03 PM.
Reply With Quote
  #6  
Old 01-28-2019, 06:36 PM
raabs raabs is offline
 
Join Date: Apr 2017
Location: Central Florida
Posts: 34
Default

If anybody can post a couple of pics on returns through the upper bulkhead, it would be appreciated. Would like to see how it looks from the cabin.
__________________
Rob Kelly
FL
Reply With Quote
  #7  
Old 01-29-2019, 07:41 AM
Lynnb's Avatar
Lynnb Lynnb is offline
 
Join Date: Jan 2014
Location: Cedar Hill, TX
Posts: 244
Default

Quote:
Originally Posted by AviatorJ View Post
Do you have the standard or larger evaporator? If you have the larger one, I've been working with Bill on a solution. Currently it's two transition pieces that cut through the upper Bulkhead piece and go straight into the unit.

If it's the standard I would call Bill and see what he suggests. You defiantly want it to come from the cabin vs the tail.
I have the standard, at the time he was still working out issues with the larger one. My plan is to just create a duct through the upper rear bulkhead panel, I was just hoping to see what others had done. I just want to make sure, other than a pre-filter, that I don't restrict the airflow any more than necessary.

Do you have any additional pictures of your set-up? I searched your sight, which by the way I really enjoy reading, but couldn't find more than your initial mock up and mention of working with Bill.

Thanks again,
Lynn
__________________
RV-10 in Process
Reply With Quote
  #8  
Old 01-30-2019, 03:02 PM
AviatorJ AviatorJ is offline
 
Join Date: Feb 2015
Location: Oklahoma City
Posts: 735
Default

Here are a few pictures showing the transition pieces, how they come through the bulkhead. Also a picture of how it's wired in the tail cone and how the cap piece will fit. Bill is working on that part which will have recessed edges to match the transition piece as well as a grill for the airflow.







__________________
Justin
RV-10, N10JW
First Flight 2/14/2019
http://operationrv10.blogspot.com/
Reply With Quote
  #9  
Old 01-31-2019, 08:47 AM
Lynnb's Avatar
Lynnb Lynnb is offline
 
Join Date: Jan 2014
Location: Cedar Hill, TX
Posts: 244
Default

Thanks for the pics.

Quote:
Originally Posted by AviatorJ View Post
Here are a few pictures showing the transition pieces, how they come through the bulkhead. Also a picture of how it's wired in the tail cone and how the cap piece will fit. Bill is working on that part which will have recessed edges to match the transition piece as well as a grill for the airflow.
__________________
RV-10 in Process
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 10:30 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.