Porsche VK3001 Leopard.
In 1937, along with Henschel, Porsche was given the task of build the medium tank that would replace Panzerkampfwagen IV. Its design was supposed to be capable of being armed with 75mm L/24 or even if possible 105mm L/28 gun and one 7.92mm MG34 for local defence. VK3001(P) was Porsche's first design since 1927's Grosstraktor I and its drawings were finished by September 5th of 1939 by Porsche's Chief Engineer Karl Rabe.
Prototypes were supposed to be fitted with turrets manufactured by Krupp. Porsche considered arming the vehicle with 105mm KwK L/47, 105mm KwK L/52 gun and finally with 88mm KwK 36 L/56 gun (developed from 88mm Flak 36 gun). Six turrets armed with 88mm guns were ordered in April of 1941, but none were produced. Leopard's turret was similar in appearance to that used on Tiger(P) and Tiger. Porsche planned to power VK3001(P) with gasoline-electric power/drive system (two air-cooled Porsche Typ 100 engines by Steyr and electric transmission). Only one or two turretless prototypes were completed by Nibelungenwerke in St.Valentin, Austria in late (October) 1941, out of 3 hulls originally ordered.
F. Porsche (with hat) testing his vehicle.
Although many problems were encountered with its advanced power and drive system, prototype(s) performed well. During tests prototype(s) reached maximum speed of 60km/h but its fuel consumption was 170 liters per 100 kilometers. In order to solve the engine problems, Porsche designed diesel engine (Porsche Typ 200) but it was never produced.
VK3001(P) program was abandoned and two prototypes were used extensively in the development of VK4501(P) - Porsche's Tiger, which started in July of 1941. In order to transport VK3001(P) tank, Porsche designed special tank transporter (Panzertransporter Porsche 142), but this project was also abandoned. Tests continued until May of 1942, but VK3001(P) never went into production just like VK3001(H) and VK3601(H).
Weight: 30000kg
Crew: 5 men
Engine: 2 x Porsche Typ 100 / 10-cylinder / 210hp
Speed: 60km/h
Lenght: 6.58m
Width: 3.80m
Height: 3.05m
Armament: 75mm KwK 37 L/24 7.92mm MG34
105mm KwK L/28 7.92mm MG34
Armor (mm/angle):
Front Turret: 80/21.5
Front Superstructure: 75/15
Front Hull: 75/20 45
Side Turret: 60/0
Side Superstructure: 60/0
Side Hull: 60/0
Rear Turret: 60/0
Rear Superstructure:
Rear Hull: 40/31.5 0
Turret Top / Bottom: 40/10 15
Superstructure Top / Bottom: 26/90
Hull Top / Bottom: 26/90
Gun Mantlet: 80/0