On 3/9/2026 3:41 PM, Chris Gardiner via KRnet wrote:
Thanks Larry
I will as thinking to move the pitot /static further outboard of the
wing attach fittings and bought an A/C Spruce fitting for this purpose.
Unfortunately it makes more work when dismantling the plane each
season to trailer it home.
But I guess I will have to try it.
Thanks
Chris
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I used thin 1/4" alum tubing from the hardware store to form the tubes,
cut a small piece of alum (1.25"X 2" ? ) , shaped to wing lead edge and
assembled it to the tubes with 5 minute J.B. Weld. Put the J.B. Weld on
the top side of the aluminum only and it goes inside the wing. The
leaves the lead edge of the wing at the attach point smooth. A hole cut
in the lead edge allowed the tubes to enter the wing where the flex line
attached and two screws attached the unit to the wing. The flexible
tubing simply fit over the tube ends so tight I didn't need any
fittings. In your case, simply make a quick disconnect at the wing
attach point to remove wing. A 1 inch piece of aluminum tubing would
work as disconnect to split the line. On 211LF I had a 4"X9" access
door on the bottom center section of the wing at the attach point. It
was on the bottom side of the center section of the wing only with a
flush hinge on the forward end (4") and two 1/4 turn latch screws on the
rear 4" edge to open. That allowed me to hook up the fuel line, pitot /
static line, and wing light wiring before / after wing attachment. It
was located so I could access the fuel sender unites to calibrate them
also. Mount the wing, make attachments, close the door and latch and go
fly. The opening had a small "joggle" around the edge for he door to
close against. I can get you some photos if you'd like. The KR's new
home is close by. The requirement in having a good setup is to space
the tubes a bit, drill the correct size of holes / locations in the
static tube and blunt the lead edge opening plug to the exact size of
the tube. Any turbulence off the lead edge of the tube will play with
the static pressure along the tube 1/32" (?) holes.
I'll see Zach at the meeting tonight. I'll see if we can go by the
hangar and get some photos.
Larry
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