Mooney Aircraft Company purchased the Ercoupe type certificate from the Alon Corporation in 1967. Thirty-eight standard Ercoupes were before tooling was ready to produce the M-10 Cadet. The aircraft had modified ailerons and a redesigned tail to allow it to spin (something the original was designed not to do). This allowed it to be marketed as a trainer. The Cadet was built 1969 - 70, manufacturing 59 aircraft. The type certificates for the original Ercoupe and Cadet were later sold to Univair Aircraft Corporation who continue to provide parts for all versions.