Cherokee-M Construction - Fin can
May 13, 2003:
Securing the Aeropack retainer to the aft thrust bulkhead. The idea is to drillholes into the bulkhead and screw in these threaded inserts into the holes.
Then the retainer goes on and gets screwed to the threaded inserts.
I managed to get eleven of the twelve holes drilled perfectly on the first try, one was a little too far off-center. I filled it on the side with epoxy and re-drilled it. I don't know how you are suppose to get all of the holes lined up perfectly, no matter how well you mark them, short of using a drill press. But I managed to get all twelve lined up well enough after that one slight adjustment, and I had my motor retention.
Motor retainer:
