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  #1  
Old 01-24-2023, 10:41 AM
Scott Hersha Scott Hersha is offline
 
Join Date: Jan 2005
Location: Cincinnati, OH
Posts: 2,522
Default RV4 canopy vent

Posting for a friend:

Looking for an original style vent that goes on the canopy skirt on an RV4. Itís a NACA shaped vent with a door that opens and closes via a knob on the inside. Clockwise to close the door opening that is hinged on the forward end of the NACA opening. In the picture below, on the forward vent, the door and the threaded shaft that the door operates on is missing. On the aft vent itís all there and works. Does anyone have access to one of these, or know if they are still made and where to get it? Any suggestions for a fix would be appreciated.

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__________________
SH
RV6/2001 built 2000/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
RV4/bought 2019/sold2021
RV6/August 2022 build - Flying
Cincinnati, OH/KHAO
DEC2022
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  #2  
Old 01-24-2023, 11:05 AM
HFS HFS is offline
 
Join Date: Aug 2009
Location: Lemoore, CA
Posts: 552
Default Been There - Done That

I know you are trying to recover there original status of this vent; but, out of curiosity, have you ever checked its performance in flight?

I installed two of these in my -4 way back when, because my "mentor" did.

In my case, the only thing they were good for was to suck smoke out of the cockpit, should the need arise. After trying mine once, they stayed closed for the next 15 years.

YMMV - and I hope it does.

HFS
RV-4 S/N 1136
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  #3  
Old 01-25-2023, 07:38 AM
BobRv4 BobRv4 is offline
 
Join Date: Nov 2012
Location: Gilbert, AZ
Posts: 156
Default Same here

Dont waste your time with the vent in that location. I added a NACA vent on the lower right side between wing root and firewall. Blows plenty of air, even in Az summers. Only needed one vent it works so well. My rear canopy vent is also worthless.
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  #4  
Old 01-25-2023, 09:52 AM
Scott Hersha Scott Hersha is offline
 
Join Date: Jan 2005
Location: Cincinnati, OH
Posts: 2,522
Default

My friend says that the vents actually work very well, so weíre only trying to fix the front one because the door mechanism is broken. Do you know where you got yours, or who makes/made them? He would prefer to repair what he has if possible. Looking for replacement vent, or replacement parts for what he has.

Thanks
__________________
SH
RV6/2001 built 2000/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
RV4/bought 2019/sold2021
RV6/August 2022 build - Flying
Cincinnati, OH/KHAO
DEC2022
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  #5  
Old 01-25-2023, 01:26 PM
BobRv4 BobRv4 is offline
 
Join Date: Nov 2012
Location: Gilbert, AZ
Posts: 156
Default ACS

1985, so long time ago, sorry. Really dont think youll find a replacement.
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  #6  
Old 01-25-2023, 07:35 PM
Steve Barnes Steve Barnes is offline
 
Join Date: Jul 2008
Location: Santa Rosa, CA
Posts: 625
Default Bad location!

I put a NACA vent in your location and when opened it just made noise, no wind.


Steve
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