
The last product of the Johnson Airplane & Supply Co (first flown December 1936) was the Twin-60, a twin-pusher-engined two-seat open-cockpit biplane with 30 hp Cherub engines.

The last product of the Johnson Airplane & Supply Co (first flown December 1936) was the Twin-60, a twin-pusher-engined two-seat open-cockpit biplane with 30 hp Cherub engines.