Quick question?

[BillL]

Robert, I too bought the SafeAir static kit for the threaded internal connection. After studying the shape and all the issues with static errors, I modified my approach. I took the SafeAir ports, and machined the port off so it was flat. Then used preseal to bond to the inside of the fuse skin. For the outside the standard Vans rivet was used to mechanically hold the assembly together. I presealed the rivet as well to ensure a leak free assembly.

The picture shows a smooth surface but i machine three adhesive grooves in them before installation so the bond was better.

Just another way to have your rivet and threads too.

Also, Cleaveland (Boone,IA) has some ports with threaded connections with the outside shaped like the rivet head as an alternative to SafeAir design.

[brad walton]

I bought the Avery Tool static port which protrudes far enough past the skin to extend beyond the laminar flow and gives an accurate read. If I understand correctly, static ports flush with the skin will result in pitot error because they are in laminar flow which some have compensated for by adding a washer or dab of proseal to trip up the local laminar flow. The static port from Avery extends out far enough so this is not required.

[RV7A Flyer]

These from Cleaveland work great for me...