male boss, so the approach chosen is to drill a 1/8 inch touch hole all the
way through the closure, then drill and tap 1/8 NPT female threads part way
through the closure thickness. The hole gets filled with grease and the
-sensor screwed in. The first example is a 98mm snap-ring clossure, with the
+sensor screwed in.
+
+The first example is a 98mm snap-ring clossure, with the
sensor and electronics mounted off-center so a 3/8" all-thread could be used
in the center for motor retention in a minimum-diameter-ish airframe. The
mounting bracket for the electronics was bent from a bit of 1/16" aluminum