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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA
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 Posted: Mon Apr 19, 2010 12:51 pm Post subject: Check Valve For Static System Cabin Venting... |
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Dear Listers,
Looking at the requirements for IFR certification of the RV-8, it looks like the only thing I don't have is an "alternate static source". This seems like it would be as simple as adding a "T" valve in the 1/4 neoprem static air tube that goes along under the left hand canopy rail.
Does anyone have any suggestions on something I could just cut the tube and stick in line with a little thumb screw to switch between the fuselage or cabin source?
I'm assuming this will meet the requirement?
Thanks!
PS - Attached are a couple of pictures from Taxi-testing and Magnetometer calibration this weekend. Cool?
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
Status: Final Bits/Inspection/Test Flight
| | - The Matronics RV7-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________
Matt Dralle
Matronics Email List Administrator |
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA
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| Posted: Mon Apr 19, 2010 6:48 pm Post subject: Check Valve For Static System Cabin Venting... |
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At 03:53 PM 4/19/2010 Monday, you wrote:
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Matt, cut the tubing, insert a 'T' with a short stub of tubing. Put a plug in the tube of a type that you can pull out easily if needed.
Simple, light, and inexpensive.
Linn
Matt Dralle wrote:
>Dear Listers,
>
>Looking at the requirements for IFR certification of the RV-8, it looks like the only thing I don't have is an "alternate static source". This seems like it would be as simple as adding a "T" valve in the 1/4 neoprem static air tube that goes along under the left hand canopy rail.
>
>Does anyone have any suggestions on something I could just cut the tube and stick in line with a little thumb screw to switch between the fuselage or cabin source?
>
>I'm assuming this will meet the requirement?
>
>Thanks!
|
What a great idea, Linn! Thanks. Here's what I did tonight including a couple of pictures...
I added a small "T" Nylon fitting in the 1/4" tube for static air just in front of the instrument panel under the left cockpit rail. I cut a short piece of 1/4" tubing and filled it with black RTV and then put a piece of heat shrink tubing over it to form a handle. The whole thing fits nicely under the cockpit rail and from the pilot's position is just barely visible, yet can be accessed easy. In the event that icing conditions occur, the fitting can be unscrewed and the plug removed for cabin venting.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: Final Bits/Inspection/Test Flight
| | - The Matronics RV7-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV7-List |
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