The vision of the aircraft factory in Trstenik was established immediately after the end of the World War II. The construction of an aircraft factory in Trstenik intended for national defense was foreseen by the First Five-
Soon after, it was decided to move the aircraft factory into rural region of the country, whereas Petoletka was entrusted with already adopted program – manufacturing hydraulics and landing gears for different types of domestic aircrafts as well as overhaul of landing gears for foreign aircraft types.
In 1972, a special products factory was constituted as an integral part of Petoletka.
The special products factory recorded a significant growth.
The execution of construction works on a new factory was initiated at the location of today's Special Product Factory PPT Namenska. The building was completed, equipped and put into operation in 1983, i.e. in 1984 respectively. Special Product Factory Namenska became finally separated from the Prva Petoletka system in 2008, thus becoming a completely independent entity.