Attached NACA Air Ducts

Attached the NACA Air Ducts  last night. Used proseal to attach. Held them in place by temporarily attaching a piece of angle to the longeron and using a stick and clamp with a folded pad for a spacer. Looked good this morning. If the info in the link above didn't satisfy the nerd in you, here's a 12mb "Confidential" report from 1945 on the subject that might.