The Duckling was a modification of the CW-1 Junior. The fuselage had a plywood V-shaped underside added and the addition of strut-mounted pontoons. The engine was mounted above the wing driving a pusher propeller. Only three aircraft were built, all powered by different engines. The type was not developed due to lack of funds.
Prototype powered by a 90hp (67kW) Velie M-5 radial engine, one built.
Variant powered by a 90hp (67kW) Lambert radial engine, one built.