As a young man Arne started his university education at NTH in Trondheim. His friends from his time at the university remembered Arne as a solid character with a bright and open mind.
Arne always reacted harshly to injustice. He always spoke what he thought without thinking of what other people would think of him for his opinions.
Arne graduated from NTH as an engineer and was then called out for military service. Already with a big interest in aviation, he got accepted to Hærens Flyskole at Kjeller, for military pilot education. Arne spent his military service there and got his wings, he was now a qualified pilot.
When Germany invaded Norway, Arne reported for duty. He did not hesitate to do his part for Norway. Arne took part in the fighting in Norway until the capitulation in June 1940. His mother had become a widow a few years earlier, so Arne went back home to help his mother and his sisters in a tough situation.
On the 4th of May 1945, only four days before the war would be officially over, Arne flew his P-51 Mustang III on a mission to the northern parts of Germany. The mission was one Arne had volunteered for.