33 was assembled from a framework of steel "angle iron" beams, to which armor plates were riveted.

The gunner sat on the left and had a similar vision port half the size of the driver's.

[1] The 1.95-litre (119 cu in), water-cooled, 30 horsepower (22 kW), inline 4-cylinder Praga engine sat in the fighting compartment.

Transmission, reduction gear, differential, driving shafts and brakes were all taken from the Praga AN truck.

[3] The Czechoslovakian Army bought three Carden-Loyd tankettes and a production license for them in 1930, Českomoravská Kolben-Daněk building four copies that same year as prototypes for future orders.

One of the P-1 prototypes was rebuilt to address these issues with additional vision ports in all directions, internal ammunition storage and the machine gun's field of fire increased to 60°.

The gunner had trouble holding his weapon at speeds over 10 kilometres per hour (6.2 mph) and could not lay it properly at all.

The vehicle had trouble negotiating the terrain, and proved unsuitable for reconnaissance because, while "buttoned-up", the crew could only see the road ahead of them.

The lack of a radio made coordination among vehicles in a platoon or larger-sized formation impossible.

[5] While used as a substitute for the light tanks not yet in service during 1934–1936, the Army decided to organize them in three-vehicle platoons, and assigned them to support units in the border areas.