What is the best way to secure plastic tubing to aluminum pitot tubes.
The plastic hose will slide over the aluminum tube, though it requires
quite a bit of push to get more than 1/2". Would a couple of spring
clamps work, or is something more significant called for?

I put a twist of safety wire around it....

Do you go around it twice before twisting, to avoid "bunching" ?
--
Jim in NC