sides of the hull. This reduced the height of the vehicles from 176 cm to 140 cm. The intention was to create several new light tank destroyers as a replacement for the Jagdpanzer 38(t), as well as a new family of gun platforms (Waffenträger) armed with heavy anti-tank guns. However, from September 1944 the design was abandoned in favour of a redesigned and enlarged Jagdpanzer 38(t), using German parts as opposed to the Czech parts for the Jagdpanzer 38(t). This new design was called Jagdpanzer 38D, and was to use a Tatra 12-cylinder air-cooled diesel engine similar to the one fitted to the Sd.Kfz. 234 'Puma'. None of these vehicles reached series production. Jagdpanzer E-25 The E-25 designs, in the 25-50 tonnes weight class, were to be the replacements of all Panzer III and Panzer IV based designs, with involvement of the Alkett, Argus, Adler and Porsche firms. This family would include medium reconnaissance vehicles, medium Jagdpanzer vehicles and heavy Waffenträger vehicles. All would use five Tiger II style road wheels but larger per side in a similar overlapping layout to the lighter E-10 suspension, as well as "slack-track" design and a rear drive sprocket. As main armament, a 75 mm Pak 42 L/70 was planned, with a possible MG in a small turret. Overall, this vehicle would have been similar to the Hetzer tank destroyer. The tank would have been very maneuverable, and due to its low profile, hard to spot on the battlefield. E-50 Standardpanzer The E-50 Standardpanzer was intended as a standard medium tank, replacing the Panther and Tiger I and the conversions based on these tanks. The E-50 hull was to be longer than the Panther – in fact it was practically identical to the Königstiger (Tiger II) in overall dimensions except for the upper and lower glacis plate layout. Compared to these earlier designs however, the amount of drilling and machining involved in producing these Standardpanzer was reduced drastically, which would have made them quicker, easier and cheaper to produce, as would the proposed conical spring system, replacing their predecessors' torsion bar system which required a special steel alloy. A new turret was to be designed for the E-50 and E-75, but drawings were never made and the turret was never even conceptualised. Armament is also not confirmed in any sources. As indicated by its name, the weight of the E-50 would fall between 50