While doing some research for an article, I came across the question how the naming evolved.
Were the old Sherpas and Curtis Designs called Packrafts by there producers and users? Did Dick Griffith consider his 1952 trip in the copper canyon as ‘Packrafting’? Who knows?
On an academic level, question, specifically designed as a non self bailer, is an Alpacka technically still a Raft, as it floats by its hull design, too? As far as I know, the difference between a boat and a raft is the existence of a hull. The boat displaces water by its hull design, the raft only by its very self material.