Königstiger) was armed with an 88 mm L/71 gun (Sd.Kfz. 182) Jagdtiger - Based on Tiger II chassis. Tank Destroyer armed with a 128 mm L/55 PaK44 gun (Sd.Kfz. 186) Ferdinand/Elefant The Ferdinand/Elefant (Sd.Kfz. 184, and known as Panzerjäger Tiger (P)) used the chassis of Porsche's VK 4501 (P) which was rejected, due to its unreliable complex powerplant, in favour of the Henschel design which became the Tiger. On top of this chassis, a forward-facing 88 mm L/71 gun was mounted. Other vehicle During WW2, Germany produced: 3,024 Reconnaissance vehicles 2,450 other armoured vehicles 21,880 Armoured personnel carriers 36,703 Semi-tracked tractors 87,329 Semi-tracked trucks 347,490 Military trucks and lorries 226,337 Military cars 97,470 Military motor-cycles 245,389 Train waggons Development of tank manufacturing German manufacturing of tanks began in 1934, in violation of the Treaty of Versailles. German industry had not produced arms in many years, and time was required to develop the necessary techniques for hardening steel and for the development of tooling to produce arms. The first tank type produced was the two-man, air-cooled Pz I light tank, designed and produced by the Krupp works as a training vehicle. It was not designed for use in combat; instead, the main battle tank of the German army was to be the Panzer III but delays in its development and manufacture led to the production of an interim vehicle, the liquid-cooled Panzer II, which began production the following year. It was not clear yet how tanks would be used in the next war, nor was it apparent that tank-versus-tank combat would be important; some military theorists envisioned tanks operating in support of infantry. The cavalry arm of the Heer saw the major function of tanks to be that of reconnaissance. This was in marked conflict with the ideas of the armoured warfare proponents of Germany, chiefly Heinz Guderian, Wilhelm Ritter von Thoma, and Walther von Reichenau. It was not until 1937–38 that the first Panzer III and Panzer IV medium tanks began to appear. Noting that Germany was the third largest producer of automobiles in the world, Guderian projected that Germany would be competitive with its major adversaries, a rather optimistic projection since Germany had great difficulty replacing vehicle losses throughout the war, the United States had been considered a non-combatant, and it ignored Soviet production capacity. Early in development the Heer settled on the concept of the tank having a