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  #1  
Old 11-13-2018, 07:27 AM
Larry DeCamp's Avatar
Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 691
Default NACA vent in the cheek cowl ?

Sam Jones no longer offers cheek cowl so I will fabricate from scratch. I read here about An RV4 that had NACA inlets on the bottom of the cheeks that workwell. Does anyone know how to contact that person ?
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RV-3B flying w/ carb & Pmags
RV-4 fastback w/ Superior EXP 0360 /AFP & CPI
Clinton, IN
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  #2  
Old 11-13-2018, 07:49 AM
rv4ross rv4ross is offline
 
Join Date: Dec 2005
Location: Locust Grove, GA
Posts: 52
Default

I have a neighbor that has done that and I copied his. Used one of Vanís vents as a start and made my own NACA vent and molded it to fit inside the teardrops. Passed Vanís 2Ē vent hose through the fuselage side and then to an eyeball vent on the instrument panel. Neighbor says it is extremely effective.
I can email a couple of pictures if you want.

Ross Scroggs
RV-4. #3911
Locust Grove, GA.
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  #3  
Old 11-13-2018, 08:46 AM
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smokyray smokyray is offline
 
Join Date: Jan 2005
Location: TX32
Posts: 1,760
Default A bit Cheeky...

Quote:
Originally Posted by Larry DeCamp View Post
Sam Jones no longer offers cheek cowl so I will fabricate from scratch. I read here about An RV4 that had NACA inlets on the bottom of the cheeks that workwell. Does anyone know how to contact that person ?
Larry,
My buddies "Hollywood and Cheez" of Hotel Whiskey Aviation both installed their NACA ducts on the underside of the cheek on their Fours, nearly invisible unless you know where to look. VERY effective. Difficult to install post construction I might add...

I will PM you their contact info...
V/R
Smokey
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  #4  
Old 11-13-2018, 09:39 AM
Michael Henning Michael Henning is offline
 
Join Date: Jun 2011
Location: Nashua, NH
Posts: 497
Default RV-10 vents

I installed two RV-10 vents up by the rudder pedals. It works great. In the hot summer, with the air blowing up your legs, it’s great. In the winter, they don’t leak air at all. Cheap and easy and effective.
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RV-4 #2750
N654ML
IO-360
WW150C Prop
1018 lbs
Flying
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  #5  
Old 11-13-2018, 09:47 AM
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acam37 acam37 is offline
 
Join Date: Aug 2012
Location: Lufkin Tx
Posts: 637
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I was going to do the same thing. I saw it on a -4 at a local fly in and thought it looked really good. But after cutting the hole and checking where the hose would enter through the side skin, the throttle/mixture cables were right in the way. So there was no way it would work on the left side with my setup. I glassed the hole up and abandoned the idea.
[IMG][/IMG]
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RV-4 (N124TT) Sold
RV-8 (N269CP) Sold
RV-4 (N684ML) under construction
KOCH Nacogdoches
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  #6  
Old 11-13-2018, 10:30 AM
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smokyray smokyray is offline
 
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Location: TX32
Posts: 1,760
Default Venting a bit...

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Originally Posted by acam37 View Post
I was going to do the same thing. I glassed the hole up and abandoned the idea.

[IMG][/IMG]
Arlie/Mike,
There are many ways to skin the proverbial cool air cat, ( I had 4 different vent combos on my Four) however, Hollywood's NACA vent on the underside of the cowl cheek is slick.
I will try to get pics...
V/R
Smokey
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  #7  
Old 11-13-2018, 10:55 AM
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acam37 acam37 is offline
 
Join Date: Aug 2012
Location: Lufkin Tx
Posts: 637
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My build is almost finished and I still haven't decided where to put the fresh air duct. Here was my inspiration
[IMG][/IMG]
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Arlie Conner
RV-4 (N124TT) Sold
RV-8 (N269CP) Sold
RV-4 (N684ML) under construction
KOCH Nacogdoches

Last edited by acam37 : 11-13-2018 at 11:02 AM. Reason: Add photo
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  #8  
Old 11-13-2018, 06:12 PM
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Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 691
Default Thanks to all !

VAF is the greatest. This is what I was looking for. Please forward the email,PM etc to help me do this.
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Larry DeCamp
RV-3B flying w/ carb & Pmags
RV-4 fastback w/ Superior EXP 0360 /AFP & CPI
Clinton, IN
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  #9  
Old 11-14-2018, 08:15 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 3,618
Default Ross's Vent Photos

He kindly sent them to me, and I'm posting them with his permission. On a couple, I tweaked the exposure for clarity.











Dave
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  #10  
Old 11-15-2018, 10:16 AM
SJordan SJordan is offline
 
Join Date: Sep 2016
Location: Scottsdale, AZ
Posts: 169
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Just a quick note to back up this great thread. I just Finished my -4 build with the NACA’s in the cowl cheeks. Thy work amazing and are so much air I split each side to two different eye ball vents, so I have 4 vents up front. Yes it’s a lot of work to glass them in and get everything to work including throttle and mixture cable clearance but when it’s said and done it’s super clean and most inmportantly a blast of air.
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