Vital Alsar Pacific raft expeditions that ancient mariners knew the Pacific currents and winds as well as modern humans know road maps. It was hoped to double the distance achieved by the Kon-Tiki expedition, the 1947 raft crossing by Thor Heyerdahl from South America to the Polynesian islands. Like the Kon-Tiki expedition, the aim was to see if a raft made from the materials available in the 16th century in pre-Columbian South America, when such vessels had been observed by Spanish sailors, could navigate the journey. Having been surprised by the seaworthiness of La Balsa, being confident they could have gone on to reach Africa
Tangaroa Expedition solar panels, portable computers, and desalination equipment. The crew posted to their website. Tangaroa's six-man crew was led by Norwegian Torgeir Higraff and included Olav Heyerdahl, grandson of Thor Heyerdahl, Bjarne Krekvik (captain), Øyvin Lauten (executive officer), Swedish Anders Berg (photographer) and Peruvian Roberto Sala. Tangaroa was launched on the same day that Kon-Tiki had been—April 28—and it reached its destination on July 7, which was 30 days faster than Heyerdahl's Kon-Tiki which had taken 101 days for the voyage. Tangaroa's speed was credited to the proper use of the quara centerboards in navigation. Heyerdahl had not known how to