The Beech 18 prototype with first flight on January 15, 1937. Traded in to Beech for a Beech 18S (c/n 294) in August 1939. To various companies before joining the RCAF as 8650 in September 1941. It served until March 1945. In May 1945, PP-XAM was reserved, but the sale never finalized. To other others (incl. for a presidential campaign for Kefauver 1952-153). Converted to a Beech 18B between 1948 and 1952. To N15810 in April 1956. Withdrawn from use and stored from the mid-1960's. Badly vandalized between 1970 and 1982. Repaired in 1990 and took up N15810 again. Reportedly active in 2017.