Born in 1945, Kari Stenman studied economics and was an import-export specialist until Finland's EU accession in 1995, when he turned his hobby of aviation history into a professio...view moreBorn in 1945, Kari Stenman studied economics and was an import-export specialist until Finland's EU accession in 1995, when he turned his hobby of aviation history into a profession, founding a company to publish his research. He retired in 2009 but has continued to research and write about the Finnish air force. In over 50 years in this field, he has written more than 100 titles.view less