In the winter of 1982, the author Dr David Myhra, boarded an evening flight to Cordoba, Argentina to interview one the most forward-thinking and original aircraft designers in German aviation. Upon arriving, Dr. Myhra retrieved his bags (containing a cassette recorder and 100 2 hour cassettes, among his personal effects) and exited the terminal. After a short time, a white half-ton short-bed Ford pick-up pulled up. Inside was Reimar Horten. Reimar was one of the 2 people Dr Myhra has met that has the gift of total recall. Contained in these pages are direct transcripts of the conversations shared by Dr Myhra and Reimar Horten, close to 400 pages. Volume 4 contains an exclusive sneak preview of the next ebook by David Myhra, “The Day the Horten Ho 229 Jumo 004B Powered All-Wing Project Died”.