Background
Herlofson was born in Kristiania to Charles Herlofson and Ellinor Boe.
Herlofson was born in Kristiania to Charles Herlofson and Ellinor Boe.
He graduated as naval officer in 1939.
During World World War II he joined the Norwegian forces in the United Kingdom. He served with the Norwegian Motor Torpedo Boat flotilla at Shetland, and took part in several raids to the coast of occupied Norway. After the war he assumed various positions in the Royal Norwegian Navy.
Between 1955 and 1958 he also contributed to the development of the Ethiopian Navy.