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Old 12-05-2010, 09:40 AM
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scard scard is offline
 
Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
Default fresh air vent location on Showplanes fastback

For Showplanes fastback builders: Where did you locate the fresh air vents. I don't have the vents in hand yet, but the sides of the panel area is disappearing fast with the rail-to-panel corner gusset and the forward canopy bulkhead. Got pictures? Maybe another bracket hanging down from the panel or someplace else? Non Showplanes builders may not fully understand the delima.
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  #2  
Old 12-05-2010, 12:42 PM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
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Scott, I used one large valve up under the panel which does not blow directly on me but dumps a lot of air in the forward cockpit. The rear seat does have a conventional airline ball vent.

If you look close, at least one of RV-8s the Showplanes crew built in-house includes vent outlets cut into the triangular panel braces. They have valves upstream, hidden behind the panel. Nice trick, but the valves they used are leakers and I wanted positive shutoff. The idea just needs better valves.
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Old 12-05-2010, 08:10 PM
Scott Hersha Scott Hersha is offline
 
Join Date: Jan 2005
Location: Cincinnati, OH
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Scott,
I split the scat tube into two tubes for two eyeballs on my panel. I get a good strong breeze coming through both of them. My panel is simple and cut down in the middle to allow a longer stick (which is bent to clear the gear tower support behind the panel.

http://picasaweb.google.com/hershasc...eat=directlink

The hole above my radio houses my AP74. Still plenty of room for expansion/changes if I choose. The vents are from Stein and work and seal very well.
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RV6/2001 built/sold 2005
RV8 Fastback/2008 built/sold 2015
RV4/bought 2016/sold/2017
RV8/2018 built/Sold(sadly)
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Last edited by Scott Hersha : 12-05-2010 at 08:16 PM.
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  #4  
Old 12-05-2010, 08:46 PM
DENMACRES DENMACRES is offline
 
Join Date: Aug 2008
Location: MONTGOMERY, TX.
Posts: 89
Smile VENTS, RV-8 FAST BACK

I HAVE 2 VENTS IN THE PANEL, FED BY A NACA ON EACH SIDE. LOTS OF AIR NEEDED HERE IN TX. PANEL IS EQUIPT WITH 2 GRT LARGE SCREENS AND MINIMAL SWTS. RV-6/830hrs. DENNIS MCCRIGHT 9364433562
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