Kon-Tiki, e.g. is a term used to refer to a RAFT made of balsa wood and other materials, famously used by Norwegian explorer Thor Heyerdahl in 1947 to cross the Pacific Ocean from South America to the Polynesian islands. The crossword solution for this term is RAFT, which is an acronym for Rigid Airship Frame Technology. This type of RAFT was designed to be lightweight and buoyant, allowing it to travel long distances on the open ocean.