First they operated from the buildings of HV-18 (Hauptverwaltung 18, which was established earlier, in 1951/1952), until construction work for the engine development works started in the summer of 1955.
From the beginnings in 1954 until the completion of new factories in 1957, the premises in Pirna were basically operating as the spiritual center of aviation-related research, development & production in the GDR.