In response to the Western European program for airborne tanks (Spähpanzer), the Czechoslovak Socialist Republic considered several options for armament of its own light vehicles. The most promising among these was the option of twin mounted 30-57 mm autocannons that would use shells with better penetration. Initially, the list of requirements for the tank being developed included the ability to traverse water, but due to increased armoring this faded into the background. Emphasis was also placed on high mobility and a small frontal projection area, which ensured the vehicle's survivability on the battlefield. The project did not enter production due to economic reasons.