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  #1  
Old 01-01-2020, 02:40 PM
gregski777 gregski777 is offline
 
Join Date: Sep 2019
Location: Madison, WI
Posts: 15
Default RV8 tail access - broken static line

Need some advice on how to access the empennage. Not sure how to contort myself and provide adequate support to carry my weight so I can repair the static lines.

During annual last week noticed the static lines are discolored, brittle and cracked in numerous places from the static ports forward into the baggage area. Line is 1/4" ID and the ports are the 3 rivet style. Was planning to replace with 1/4" ID polyethylene or polypropylene tubing. Any advice for this RV newbie would be appreciated.
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  #2  
Old 01-01-2020, 02:54 PM
Ted RV8 Ted RV8 is offline
 
Join Date: May 2007
Location: Northern CA
Posts: 430
Default

Make the tail level and well supported before you attempt to shimmy back there.

Make a board to sit on top of the bulkheads so you don?t get stuck between bulkheads.

If they are in the same location as the Van?s plans empennage shouldn?t be a factor.

Give you three guesses why I know these points!
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  #3  
Old 01-01-2020, 03:07 PM
6ato14a 6ato14a is offline
 
Join Date: Jan 2016
Location: longmont, co
Posts: 142
Default Static line

Gregski777,

I have access to a urethane 1/4 od line that i have used for pitot and static on a non rv plane. The id is smaller than polyethlene but should still work on the rivet static line. If you need some give me a call at 303-772-2202 and i will send you some.

Dave
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  #4  
Old 01-01-2020, 03:08 PM
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rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGY
Posts: 3,647
Default foam

I like to throw a slab of foam from an old mattress or inflatable mattress down there before crawling in, then some thin planks on top. Just recently had to do that to tighten some nuts on the canopy rail. As Ted said, with a level fuselage it is much easier.
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  #5  
Old 01-01-2020, 03:54 PM
74-07 74-07 is offline
 
Join Date: Dec 2016
Location: Greenville, SC
Posts: 550
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Thin planks over the bulkheads and then go to Goodwill and buy old sofa cushions (they always have a bin of these mixed with various pillows). I paid $1 each.
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  #6  
Old 01-01-2020, 03:57 PM
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Wunderon Wunderon is offline
 
Join Date: Jun 2014
Location: Seattle (Edmonds) and Iowa
Posts: 200
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if you have plans there are dimensions for support sheets (3/8 or 1/2 ply) to fit back there
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  #7  
Old 01-01-2020, 06:58 PM
gregski777 gregski777 is offline
 
Join Date: Sep 2019
Location: Madison, WI
Posts: 15
Default Thanks for the advice

Thanks guys for the great advice. I'm so happy to be flying an RV, the community here is fantastic!

I did verify that the tubing is 1/4" ID from the static port into the cabin where it then reduces down by the throttles. Looks like the original builder may have used vinyl tubing, which when combined with Florida heat may have caused the line to yellow and become brittle.
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  #8  
Old 01-01-2020, 07:27 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,719
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Here's an example showing the work platforms I made for my RV-3B fuselage. These work really well, although I did have to carve out space for some systems added later.



A simple board is fine, too, if you can get it in and later remove it.

Dave
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