Pitot Tube locking connection.

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JoeMartin

Well-Known Member
Joined
Aug 14, 2019
Messages
47
Location
South Dakota
I know the pitot tube is pushed into the block and probably works fine without it falling out.
Me being me I keep thinking "what if" it fell out?
I'll be making a pitot tube on the lathe and was considering using a locking connector.
Anyone use something like this?

pitottube_connector.png
 

Soneraifred

N99FK and me at OSH
Staff member
Joined
Jan 12, 2006
Messages
896
Location
Franksville, WI
On my airplane, I mounted an aluminum block on the inside of the RH tip rib. The block is drilled with a 3/8” drill on the front side, and drilled and tapped for 1/8” NPT pipe thread on the back side. The pitot tube is a piece of 3/8” OD x .035” wall aluminum tubing that gets inserted into the 3/8” hole. I put a thin layer of silicone sealer to seal the tube and lock it in place. Once the silicone has dried, the pitot tube will not “fall” out. It must be twisted and pulled with some force to get it out. Just a side note: I used 1/4” ID Tygon tubing for both the pitot and static lines. It’s been in the airplane for almost 34 years, and it is still as flexible as day one.
 

JoeMartin

Well-Known Member
Joined
Aug 14, 2019
Messages
47
Location
South Dakota
On my airplane, I mounted an aluminum block on the inside of the RH tip rib. The block is drilled with a 3/8” drill on the front side, and drilled and tapped for 1/8” NPT pipe thread on the back side. The pitot tube is a piece of 3/8” OD x .035” wall aluminum tubing that gets inserted into the 3/8” hole. I put a thin layer of silicone sealer to seal the tube and lock it in place. Once the silicone has dried, the pitot tube will not “fall” out. It must be twisted and pulled with some force to get it out. Just a side note: I used 1/4” ID Tygon tubing for both the pitot and static lines. It’s been in the airplane for almost 34 years, and it is still as flexible as day one.
Good info on the tubing. I don't have a hangar and will store the plane in a trailer so the pitot tube will be removed often as to not accidentally hitting it and breaking it off while the wings are being folded.
 

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