Tanks and Armoured vehicles used or refused by the Czechoslovak army: [/size]
Škoda PA-II "Zelva" (Turtle)
Twelve PA-II were produced in 1924 - 25 and used by the Czechs. Two, without armor, were used for drivers training. Unofficially their name was also known as OA vz.23. Three units were sold to the Austrian Vienna Police in 1927.
Crew 5 Engine Skoda, 4cyl, 9730cc, 70hp Performance 70km/hour Length 6m Width 2.16m Height 2.44m Armament 4 x Maxim 08 MG Armor 3 - 5.5mm Weight 7.36 tons Range 250km

Skoda PA-II Delovy
Only one prototype produced in 1927. The vehicle was deemed as too heavy, expensive, and under powered.
Crew 4 Engine Skoda, 4cyl, 9730cc, 70hp Performance 45km/hour Length 6.06m Width 2.16m Height 2.81m Armament 7.5cm Skoda L28, 1 x Maxim 08 MG Armor 3 - 5.5mm Weight 9.4 tons Range 250km

Skoda (PA-III) OA vz.27
Fifteen units plus one prototype were produced in 1929. Three units were captured by Romania in 1939 during the final breakup of Czechoslovakia. The newly created state of Slovakia inherited three. The remainder were taken by Germany in 1938.
Crew 5 Engine Skoda, 4cyl, 5700cc, 60hp Performance 35km/hour Length 5.35m Width 1.95m Height 2.66m Armament 2 x MG vz.7/24 plus 1 x ZB vz.26 Armor 3 - 5.5mm Weight 6.6 tons Range 250km
PA-IV
First produced in 1927, this improved verion featured a built in searchlight in the rear the the turret. Additional featured included dual controls with allowed the vehicle to be driven and steered on all four wheels. Self sealing tires were used.
Crew 5 Engine 100hp Skoda Length 19' 6" Width 6' 10" Height 8' 10" Armament 3 x Maxim MG. Later models used a 37mm Skoda (in the hull) and 2 x Maxim MG. Armor .198" - .237" Weight 7.7 tons
Tatra Koprivnice (T-72) OA vz.30 51 vehicles were produced between 1933-34. Crew 3 Engine Tatra 71 aircolled 4cyl 1910cc 32hp Performance 60km/hour Length 4.02m Width 1.52m Height 2.02m Armament 3 x ZB vz.26 MG Armor 3 - 6mm Weight 2.78 tons Range 300km
P-I Tankette (Tančík vz.33)
A Czech built tankette produced by Adamov Works in Brno from 1933 to 1934. The design was influenced by the Vickers Mark VIb, and the Polish TK tankette. The Adamov Tančík vz. 33 vehicles were only used by Czech border guards as the Czech army rejected this model. Some did see action against the Germans during the Slovak Uprising. A total of 70 plus 4 prototypes were produced. One prototype was sent as a gift to the Shah of Iran. Crew
2 Weight 2.3 tons Length 2.7m Width 1.75m Height 1.45m Engine Praga 4cyl water cooled 1950cc 30hp Transmission ? Performance 35km/hour Range 100km Armament 2 x Light ZB vz.26 MG Armor 4 - 12mm

KH-50/60/70
Following WW1 and a side trip to deliver the "M-21" to Sweden, Josef Vollmer, the former chief designer for the German War Department's motor vehicle section, came to reside in Czechoslovakia. Joining Skoda, he set to work on a wheel/track light tank. His KH-50 design had roadwheels mounted on the drive sprockets and a jockey wheel behind to keep the tracks up off the ground. Despite impressive specifications - 13mm armor, a 37mm turret mounted gun, and a 50hp engine capable of pushing the tank up to 8mph (tracks) and 22mph (wheels), it was rejected by the Czech army. However, the Czech army was impressed. The army liked the hybrid Kolohousenka wheel/track arrangement and commissioned further studies. Further designs would be the KH-60 and 70. Notable differences would be the engine power was increased to 60 and 70hp and a better system of switching between track and wheel. The left three photos are the the KH-50, the right two are of the KH-60. The middle photo is of the wheel change device. This simple ramp device allowed the track to wheel change to happen in under 10 minutes. The actual years of production and testing were 1925 - 30. During which time, 2 KH-50 prototypes were built. One was rebuilt into a KH-60 and the other scrapped. Actual production included 2 KH-60 to the USSR and 1 KH-70 to Italy. As time passed, this vehicle came to be regarded as more of an experiment rather than a military war vehicle.
Skoda MU-4 - a.k.a S-I and T-1
The Skoda MU-4 was also known as the S-I, T-1. One prototype was produced sometime between 1932 and 1934. It appears that the name of the tankette changed with modifications over a 2 year period. The Skoda MU-4 was a two-man 'Tancik' designed by Skoda to compete against the CKD/Praga P-I 'Tancik'. It had an all-welded construction with front drive. Rejected by the Czech Army. This vehicle has survived and is now restored and viewable at the Prague Military Museum.
Crew 2 Weight 2.2 tons Armor 5.5mm (max) Armament 2 x ZB vz.26 MG Engine Skoda 40hp 4-cylinder, air-cooled gasoline, 2660cc Performance 40.5 km/hr Length 2.98m Width 1.67m Height 1.3m
Skoda S-I-P (after 1939 as the T-2)
The Skoda S-I-P was built as a prototype only in 1937. Orginally developed as Skoda's own project of a reconnaissance light tank. In this form it carried a small turret meant for the ZB-60 15mm heavy machine gun. In 1939 it was modified into the pictured version shown above with one light and one heavy MG. It was modified again and retested in 1943 with a center drive sprocket. Rejected by the Czech Army and German Army.
Crew 2 Weight 4.6 tons Armor 8 - 15mm Armament 1 x ZB vz.26 MG, 1 x ZB vz.35 Engine Skoda 60hp 6-cylinder, air-cooled gasoline, 3990cc Performance 45 km/hr Length 3.65m Width 2.03m Height 1.56m
Skoda S-I-d The very first Skoda assualt gun prototype. The prototype was made in 1935. Rejected by the Czech Army, the prototype unit was purchased by the Waffen SS in 1940.
Crew 2 Weight 4.55 tons Armor 8 - 20mm Armament 3.7cm Skoda A3 gun 1 x ZB vz.26 MG Engine Skoda 60hp 6-cylinder, air-cooled gasoline, 3770cc Performance 41km/hr Length 3.7m Width 2m Height 1.68m
T-32 (Skoda S-I-d) Assault Gun
This tank was not accepted for the Czech army. Export only.
T-3D (Skoda S-I-j) Assault Gun
In 1938 this vehicle design for Yugoslavia was produced at prototype level and accepted for production. Before production, the breakup of Czechoslovakia began. The prototype was purchased by the German Waffen SS. No other vehicles were produced. This vehicle has the distinction of being the last assualt gun ever designed by Skoda.
Crew 2 Weight 5.8 tons length 3.59m Width 2.05m Height 1.8m Range unknown but said to be able to travel for 6 hours before needing fuel. Armor 8 - 30mm Armament 4.7cm Skoda A9j Gun, 1 x ZB vz.30J MG Engine Skoda diesel, 4cyl water cooled 3770cc 60hp Performance 31km/hour 
CKD AH-IV
The vehicle also enjoyed considerable success in the export market, the basic design often being scaled up or down to suit the customer's requirements. Foreign users included: Romania: 35 AH-IV-R - see the Romanian R-1. Ethiopia: AH-IV-Hb (this was done in the 1950's by updating the Romanian prototype). Sweden: 48 AH-IV-Sv - Sweden produced 48 Stvr m/37 with imported parts and a license. Iran: 50 AH-IV plus 1 prototype.
F-IV-H
Two prototypes were built between 1938 and 1941. The vehicle had superior mobility in the water even by today's standards. Not accepted for the Czech or German army.
Crew 3 Weight 6.5 tons length 4.85m Width 2.5m Height 2.08m Range 200km Armor 6 - 14mm Armament 1 x ZB vz.37 MG Engine Praga F4 4cyl water cooled 7180cc 120hp Performance 45km/hour (land) 7km/hour (water)
Skoda SU (later S-II) 1 prototype produced in 1934. This was the direct predecessor of the S-II-a. This vehicle introduced pneumatic steering and gear shifting. A real improvement in reducing driver fatigue.
The CKD (P-II) LT vz.34
The prototype was presented to the army in 1932 and production started in 1934. By 1936, when production halted, 50 had been made.
Crew 3 Weight 7.5 tons length 4.6m Width 2.1m Height 2.22m Range 160km Armor 8 - 15mm Armament 3.7cm Skoda UV vz.34, 2 x ZB vz.35 MG Engine Praga 4cyl water cooled 6082cc 62.5hp Performance 30km/hour

Skoda - CKD (S-II-a) (T-11) LT vz.35, vz.38, vz.39
Hurried into service in 1935 without proper testing, this tank was considered a "lemon" by the army. Many were sent back to the factory for modifications and repairs. Gradually the faults were worked out and the tank actually gained a good reputation. An unusual feature of this tank was that the transmission and steering were assisted by compressed air to reduce driver fatigue. This feature worked well until these tanks encountered the famous Russian winter. Romania purchased 126 units and named them the R-2. The Germans took over as many units as possible when they occupied the country. The German designation was Panzerkampfwagen 35(t). A further 219 were built to the specifications of the German army. By 1940, the German army was in such shortage of tanks that the 6th Panzer Division was heavily equipped with the 35(t) just in time for the Battle of France. Most continued in service until 1942 as main battle tanks and were then converted to a host of roles such as mortar tractors (Morserzubmittel) and artillery tractors (Zugkraftwagen). Still other were converted to maintenance vehicles.
Crew 4 Engine 120hp Speed 25mph Length 4.90m Width 2.10m Height 2.35m Armament 37mm Cannon 2 MG Armor 8-25mm Weight 10.5 tons Range 125 miles









Skoda S-II-c (After 1939 called the T-21) Medium Tank
One prototype was produced in 1938. This design retained the pneumatic steering and gear changing of the S-II-a. This design was considered excellent. License for the design was sold to Hungary.

Skoda LKMVP Anti Tank Gun Carrier
One prototype was produced in 1938. After 1939 it was called PUV-6. The prototype was purchased in 1940 by the German Waffen SS. The gun was carried on the vehicle but could also be towed. It was possible to fire the gun from the vehicle.