Jorn made his powerboat debut in 2004 alongside Christian Zaborowski in the ProVee championship. The duo took two podiums and the Norwegian title in their boat (Welmax). Jorn stepped up to the challenge of Class 1 in 2005 becoming throttleman and co-owner of the Ugland Offshore Racing team. In his debut season he took two podiums and one pole position win. His first race win came in Arendal last year.