In article .com,
wrote:

wrote:

Semi-Monocoque is the term, not "complimentary."

Whatever. My professor in graduate school (a Stanford Ph.D.) called it
complimentary, since the stringers and longerons compliment the skin in
that, as I said, they provide strength in a direction that the skin
does not have, which is out of plane stiffness. Since a true Mono
(meaning a single) coque (shell) structure has only a shell for
structure (an egg is a perfect example), any deviation from this is
often called semi-monocoque, even when the skin carries no load, which
is an incorrect way of describing such a structure.

You mean "complementary," meaning "completes the function," not
"complimentary," as in "offerimg compliments."