Designed by Canadian Ultralight Manufacturing, which became Aircraft Sales and Spares (ASAP) but has now been taken over by Aeroplane Manufactory, Sealy, Texas, the Chinook Plus 2 can be powered by a two-stroke Rotax 582 (65 HP) or four-stroke Rotax 912UL (85 HP) engine. It can be fitted with tundra tires, skis or floats. Details below list the two-stroke first, then 4 stroke.