low price while medium tanks afforded firepower but came at a price. At any rate, the German industrial infrastructure - both the post-war limitations and the economical hit caused by the crash of 1929 - meant the development of light tanks to start with. In 1931, Major-General Oswald Lutz was appointed the "Inspector of Motor Transport" in the German Army (Reichswehr) with Heinz Guderian as his Chief of Staff and they began building the German Armored Forces and a program of light training tank to train future personnel of panzer divisions. In 1932, specifications for light (5-ton) tank were made and issued to Rheinmetall, Krupp, Henschel, MAN and Daimler Benz. Soon after rising to power in Germany, Adolf Hitler approved the creation of Germany's first panzer divisions. Simplifying his earlier proposal, Guderian suggested the design of a main combat vehicle which would be developed later into the Panzer III, and a breakthrough tank, the Panzer IV. No existing design appealed to Guderian. As a stopgap, the German Army ordered the preliminary vehicle to train German tank crews. This became the Panzer I. The Panzer I was intended not just to train Germany's panzer troops, but to prepare Germany's industry for the mass production of tanks in the near future: a difficult engineering feat for the time. In July 1932, Krupp revealed a prototype of the Landswerk Krupp A, or LKA, with a sloped front glacis plate and large central casemate, a design heavily influenced by the British Carden Loyd tankette. The tank was armed with two obsolescent 7.92-millimeter (.312 in) MG 13 machine guns. Machine guns were known to be largely useless against even the lightest tank armor of the time, restricting the Panzer I to a training and anti-infantry role by design. A mass-produced version of the LKA was designed by a collaborative team from Daimler-Benz, Henschel, Krupp, MAN, and Rheinmetall, exchanging the casemate for a rotating turret. This version was accepted into service after testing in 1934. Although these tanks were referred to as the La S and LKA well beyond the start of production, its official designation, assigned in 1938, was Panzerkampfwagen I Ausführung. A ('model A' or, more accurately, 'batch A'). The first fifteen tanks, produced between February and March 1934, did not include the rotating turret and were used for crew training. Following these, production was switched to the combat version of the tank. Its