A project developed in the first half of the 1950s. It was a self-propelled modification of the 210mm rocket launcher RK 3. The platform was to be a truck chassis Tatra 128. The official designation of this assembly is unknown.
*Source:
Mgr.Martin Dubánek - Od bodák po tryskáče - Nedokončené Československé zbrojní projekty 1945-1955, Mladá fronta 2011, ISBN : 978-80-204-2515-7
*Source:
Mgr.Martin Dubánek - Od bodák po tryskáče - Nedokončené Československé zbrojní projekty 1945-1955, Mladá fronta 2011, ISBN : 978-80-204-2515-7