My thinking is that curved pieces will be more robust than flat pieces. Polymetal > flat foam sheets.
IIRC aeroheads inflatable was an old waterbed.
Has anyone mentioned retractable base plates?
ecomodder.com/forum/showthread.php/kammbacks-tail-aero-info-2072.html
I know I've posted a screenshot from a Coventry Universty study, but Google can't find it.
I'm frustrated finding anything in my albums, since I can't sort them.