With a similar fuselage to its predecessor, it was distinguished by its tricycle landing gear and its negative-glare wings with forward-facing tips, which gave it advantages over stall.
After some tests at the Parque Aeronáutico de São Paulo, some stability problems were noted, which were solved by increasing the rudder's vertical surface.
[1] The first prototype was sent to the Department of Aerospace Science and Technology in São José dos Campos, where it underwent further tests with pilots from the Brazilian Air Force, where it was approved.
[1] The National Civil Aviation Agency of Brazil bought two airplanes, including the prototype.
[2] Some years later, the second (PP-ZPE) was returned to Marc Niess, who took it to São Paulo, where it was stored until it was destroyed in an accident that occurred in the building it was in.