Haugland first met Thor Heyerdahl in 1944 at a paramilitary training camp in England. It was here that Haugland first heard of Heyerdahl's theories about Polynesian migration patterns, and his plans to cross the Pacific on a balsa wood raft. In 1947 Haugland was invited by Heyerdahl to join the Kon-Tiki expedition as a radio operator. On the expedition Haugland and Torstein Raaby (another former resistance member) were in frequent radio contact with American amateur operators, sending meteorological and hydrographic data to be passed on to the Meteorological Institute in Washington, DC. Despite the tiny radio which had an output of only 6 watts, about the same as a small battery-powered torch, they managed to contact radio operators in Norway, even sending a telegram to congratulate King Haakon VII on his 75th birthday.