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  #1  
Old 10-07-2014, 01:30 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default Air vents higher on the panel?

Hi guys,

When I use the ventilation system in my car, I tend to direct the cooling air toward my upper body and face. It seems that most put their RV cooling vents down low, beneath those deck pieces that attach to the longerons. My panel will have plenty of space to mount them higher, which seems to make sense for my airflow needs, and my panel design will easily accommodate this positioning.

Have others put them up high, and does the S-bend of the tubing impact airflow significantly? I sparked up for the SteinAir vents, BTW....couldn't bear the thought of staring at those homely looking stockers supplied with the kit.
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RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
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  #2  
Old 10-07-2014, 02:11 PM
N941WR's Avatar
N941WR N941WR is offline
 
Join Date: Jan 2005
Location: SC
Posts: 12,887
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Not to worry, they will blast you from wherever they are located. Besides, the NACA vents are below the longeron and putting them up higher means you have to route the vent tubes up to them.

I have an Affordable Panels panel with their sub-panel for switches which lowers the vents (My headset jacks are directly above the vents and below the longerons.) and the location works great.
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RV-9 (Yes, it's a dragon tail)
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Last edited by N941WR : 10-07-2014 at 02:29 PM.
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  #3  
Old 10-07-2014, 02:16 PM
penguin penguin is offline
 
Join Date: Jan 2005
Location: England
Posts: 1,118
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I have vents higher up in my panel (6A) - they work well.

Picture of the panel while in re-build.

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  #4  
Old 10-07-2014, 02:56 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
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Thanks, guys. I've got pretty long legs, so I want to avoid any switch subpanels or housings that extend down beneath the main panel. Granted, the vents are way off to the side when mounted low.

Currently working on IP support structure, and upholstery ships in a week or so, so with everything in place I can get a real feel for what the final seating position and clearances will be.
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RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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  #5  
Old 10-07-2014, 06:10 PM
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java java is offline
 
Join Date: Nov 2006
Location: Calgary, Canada
Posts: 408
Default Higher ok

I have mine in the same location as Penguin's. More because that is how they were plumbed when I bought the plane flying and didn't want to re-route when I re-did the panel.

Higher works fine. One thing to think of is that the velocity can be considerable (good, when it's hot out), but this can also activate the VOX on your intercom/audio panel if you have it aimed at your face (mike). For this reason, I tend to aim it at my chest. The lower location would probably work just as well for this, and probably where I'd put them if building from scratch.

YMMV.
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Calgary, Alberta, Canada
RV7 QB - Airframe largely complete, sans canopy and glass... unfortunately sold
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  #6  
Old 10-07-2014, 09:58 PM
qtrmiledan qtrmiledan is offline
 
Join Date: Jan 2005
Location: Baton Rouge,La.
Posts: 159
Default Vent location

Mine are in the stock position with Stein's large size vent- I'm in Louisiana- they work better than any plane I've ever been in. You can direct anywhere you want- towards the chest area works for me.
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Baker,La.
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  #7  
Old 10-07-2014, 10:29 PM
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Neal@F14 Neal@F14 is offline
 
Join Date: Aug 2007
Location: Wichita Falls, TX
Posts: 2,182
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My vents are down at the lower corners of the panel and can still be directed up enough to blow into my face. My only gripe is that I wish I could get enough airflow to more quickly clear the cabin of smoke when I run my smoke system, but that's an entirely different problem
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  #8  
Old 10-08-2014, 05:30 AM
Loman Loman is offline
 
Join Date: Feb 2008
Location: Dublin, Ireland
Posts: 180
Default Fresh air while on the ground

I have been wondering about this too and I bought the small Aveo units with a plan to place them above the longerons line. Building the panel is the next major phase of my project but has not yet started.

I am not concerned about velocity or volume while flying but, as mine is a tipper, I am concerned about fresh air on the ground. I seem to need air across my face more than most folks and start to feel claustrophobia if I don't get enough of it. Sure I can crack open the canopy to get some air on my face but I think it would be better at taxi speeds and below to have those vents higher up.

I have also been thinking of putting one or even two 2" PC cooling fans in line with each vent tube so that I can flick them on during approach and only take my hands away from the panel to open the canopy when the aircraft has been looked after. Has anybody tried that before and if so, is it worth it?
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  #9  
Old 10-08-2014, 07:16 AM
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woodmanrog woodmanrog is offline
 
Join Date: May 2005
Location: Florida
Posts: 781
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Any place on the main panel is good. Mine are located below the panel in the farthermost corners next to the fuselage. Plenty of air but my knee is right under the vent panel. I had to cushion the edge in order not to feel metal against my leg at times. The mention of air hitting your mike is very valid. No matter where you mount the vents you will get plenty of rushing air as you cruise at over 175 mph. In the winter, you won't want that air hitting your body at all.
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  #10  
Old 10-08-2014, 09:39 AM
Rupester Rupester is offline
 
Join Date: Dec 2005
Location: Mahomet, Illinois
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Quote:
Originally Posted by qtrmiledan View Post
Mine are in the stock position with Stein's large size vent- I'm in Louisiana- they work better than any plane I've ever been in. You can direct anywhere you want- towards the chest area works for me.
Same arrangement and result for me. Even on the ground in a tipper they provide a substantial amount of air. Once off the ground, the air quantity is about enough to blow your hat off.
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