Polarpod: A Vertical Boat
polarpod.fr
1 thread
Different implementation, similar idea (and quite a bit older) the RP FLIP - https://scripps.ucsd.edu/ships/flip https://en.wikipedia.org/wiki/RP_FLIP https://youtu.be/tQxQfQU_hsk
Different implementation, similar idea (and quite a bit older) the RP FLIP - https://scripps.ucsd.edu/ships/flip https://en.wikipedia.org/wiki/RP_FLIP https://youtu.be/tQxQfQU_hsk