mm KwK 44 L/55 (75 rounds) and a 7.5 cm KwK 37 L/24. According to Panzer Tracts 6-3, there was a proposal for the 15 cm KwK 44 L/38 to be mounted on the E-100 as well. The US military magazine Armor reported in its January–February 1959 edition that a 150 mm cannon was considered for the E-100 during the Second World War. This was also reported by Anthony Tucker-Jones. According to Kenneth Estes, a 150 mm or even 170 mm gun was proposed for the E-100 but Estes reports that Dr Karl Jenschke, the Adler works technical director and chief constructor, considered this only possible on an assault gun variant of such a vehicle, because the turret space could not support such weapons. Estes reports the following specifications for the E-100: Crew: 6 Weight: 123.5 ton design Power-to-weight ratio: 4.8 Length: 11.073 m overall (8.733 chassis) Width: 4.48 m Height: 3.375 m Turret basket diameter: N/A Engines: Maybach HL230 V-12 gasoline, 700 hp; the theoretical replacement was the experimental fuel-injected HL234 developing 900 hp, which never reached series production Transmission: ZF Olvar pre-selector gearbox OG 40 12 16B; for the HL234 engine, a Mekydro transmission was specified Fuel capacity: 2050 L internal Max speed (road): 23 km/h Max range: 160 km Ground clearance: 0.5 m Ground pressure: 1.26 kg/cm2 (17.93 psi) Armament: 128 mm KwK 44 L/55, one 75 mm L/24, one MG-34. Elevation -7/+20 degrees. Ammunition stowage unknown. Armour (mm/angle in degrees from vertical): Hull front: 200/60 upper, 150/50 lower Hull sides: 120/0 Hull rear: 150/30 Hull top: 40/90 forward Hull bottom: 80/90 forward, 40/90 aft Turret front: 200/30 Turret side: 80/29 Turret rear: 150/15 Turret roof: 40/90 Post-war development After the war, the French designed and built the AMX-50 series of armoured fighting vehicles, which used a 1000 hp Maybach engine with rear drive, as had been intended for the E-50 and E-75, whilst the idea of external Belleville washer suspension - which was also developed with the Entwicklung series in mind - resurfaced on the Swiss Panzer 61. Notes References Information about the E-100 at Panzerworld German Tanks of World War II: The Complete Illustrated history of German Armoured Fighting Vehicles 1926-1945, F. M. von Senger und Etterlin, translated by J. Lucas, Galahad Books, New York, 1969, Special Panzer Variants: Development . Production . Operations, Walter J. Spielberger and Hilary L. Doyle, Schiffer Publishing, Atglen PA,