overlander64 would have posted the best information on this. The honeycomb composite aluminum floors were prototyped in only a few of the Argosy Minuet years IIRC.
- Go to Search; then advanced search.
- Put composite in the 'Search by keyword' field (only! it truly does one-word searches best).
- Put overlander64 in the 'Search by ... username' field.
- Scroll down and at the lower left select 'Show results as ... posts'
Read away. It will take some effort to narrow this down. Get back to us when you've found the Argo of your dreams!