I've seen other builders post pictures of the various ways they handled the plumbing connections for their GAP 26 pitot tube / AOA probe, but I've never seen photos of this exact method, so I thought I'd share in case it helps someone else.
I made this little bracket, which holds a pair of AN816-3D nipples connected to some 90-degree 1/4" push-to-connect air fittings that have female NPT threads:
I sandwiched the bracket between the plumbing components using rubber O-rings to create a bulkhead-fitting effect:
The bracket attaches to the top of a wing rib. The air fittings are on top, with about 1/4" of clearance to the top skin:
The aluminum tubes from the pitot run straight to the bracket fittings, no complicated bending required. The 90-degree fittings face towards the wingtip, and the 1/4" nylon hose will do a gentle 180 from there and then pass through the snap bushings at the front of the rib:
With this method I ended up with almost 9" of tubing coming out of the pitot (8" is the minimum length specified by the manufacturer).
Not sure if this will work in an RV-9 which I think has a skinnier airfoil, but in my RV-7 it worked like a charm and was way easier than trying to bend the tubes but still allow them to pass through the pitot mast.
I made this little bracket, which holds a pair of AN816-3D nipples connected to some 90-degree 1/4" push-to-connect air fittings that have female NPT threads:
![20210731_bracket1.jpg](/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F20210731_bracket1.jpg&hash=88075de7f172454947d4c269a7771804)
I sandwiched the bracket between the plumbing components using rubber O-rings to create a bulkhead-fitting effect:
![20210731_bracket2.jpg](/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F20210731_bracket2.jpg&hash=223d6ec0e254812b96c448a4e2e53efc)
The bracket attaches to the top of a wing rib. The air fittings are on top, with about 1/4" of clearance to the top skin:
![20210731_plumbing1.jpg](/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F20210731_plumbing1.jpg&hash=341d551111e913f181572eb03c3d3fda)
The aluminum tubes from the pitot run straight to the bracket fittings, no complicated bending required. The 90-degree fittings face towards the wingtip, and the 1/4" nylon hose will do a gentle 180 from there and then pass through the snap bushings at the front of the rib:
![20210731_plumbing2.jpg](/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F20210731_plumbing2.jpg&hash=e75f8cc012f1408077bdf15c1d654d5f)
With this method I ended up with almost 9" of tubing coming out of the pitot (8" is the minimum length specified by the manufacturer).
![20210731_pitot.jpg](/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F20210731_pitot.jpg&hash=e638ddcdc047db5efc70fca9cef4cc5c)
Not sure if this will work in an RV-9 which I think has a skinnier airfoil, but in my RV-7 it worked like a charm and was way easier than trying to bend the tubes but still allow them to pass through the pitot mast.
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