Prototype. First flew as CC-PZI in 1989. To the Chile Air Force as 181 then back to Enaer as CC-PZC. Preserved at the Museo Nacional Aeronáutico y del Espacio, Los Cerrillos.

The second prototype. The Namcu was designed as a two-seat trainer, four prototypes being built. It was not put into production, following a lack of interest by the Chilean Air Force, and the bankruptcy of the company set up the Netherlands to build what was to have been called the Eaglet.