Eric Schmidt ~ who effectively sponsored this platform ~ recently said that the one thing he missed during the search revolution was the fact that phone numbers were ever likely to be the key to ongoing social mediation; chances are the man inventing the phone 150 years ago didn't anticipate that either.
I've worked in foam for decades and always felt it was a contender... and nowadays most of the experimental builds featuring on YouTube (thanks again Eric) are rarely pursued without expanded plastic foam of one kind or another.
This one, in Germany I'm guessing, carries paper aeroplane modelling to extremes however. It's not truly flat like something we'd assemble from jig-sawed templates in balsa, but it's not far off.
This pic best illustrates, as you can see that XPS sheet (like Depron) has been glued to each side of a framework that in view of its complexity is likely CNC or laser-cut.
Designed nominally as an indoor flyer, given the scale it's inaugural flight took place outdoors, as seen here.
What also made it possible that I didn't foresee ~ though no-one driving Teslas saw it either ~ was how electric motors would drive experimentation even moreso than materials.
Bad boy! Bad, bad boy!
(Ed. XPS or eXtruded Poly Styrene... don't ever turn up not knowing your plastics).
