design with an 88 mm L/71 PaK 43 gun on Panzer V chassis (Sd. Kfz. 173) Panther Ausf. F - a Panther development with narrow front Schmalturm turret, none built Bergepanther = an armoured recovery vehicle, 339 built Panther II Panther II tank successor tank to the Panther while visually similar, was planned to use a new turret, longer 75mm gun, thicker armour, new engine and different components from the Tiger and Tiger II. Only one chassis was built and was later fitted with an Ausf G turret Panzer VI Ausf. E "Tiger" Also known as: PzKpfw VI E, 'Panzer VI E', Tiger I, Sd. Kfz. 181 The Tiger I (Panzer VI Ausf.H, later renamed later Panzer VI Ausf.E ) was armed with an 88 mm L/56 gun. On May 26, 1941 Hitler ordered the Henschel and Porsche firms to design a new heavy tank to be delivered in 1942. Porsche used their existing VK 30.01 (P) Leopard design while Henschel based theirs on their earlier VK 36.01 (H). The Henschel design won the competition and became the Tiger. A few Porsche Tigers were made, with a different chassis and hybrid gasoline-electric powerplant, but these were not as reliable as the Henschel model. Many of the Porsche chassis were converted into tank destroyers, known as Ferdinand then rebuilt as Elefant Variant: Sturmtiger was armed with a 380 mm rocket. Panzer VI Ausf. B "Königstiger" Also known as: PzKpfw VIB, 'Panzer VIB', Tiger II, King Tiger, Royal Tiger, Sd. Kfz. 182 The Panzerkampfwagen VI Tiger II Ausf. B "Königstiger" (Sd. Kfz.182) / VK4503(H) was a heavy tank in the later half of World War II. Armed with an 88 mm L/71 gun, the vehicle could perform well in the defensive role on the eastern and western fronts but was an expensive failure for Nazi Germany when used in an offensive role as a main battle tank. The Tiger II combined one of the most capable AT guns of the period with heavy armour, but had an over-burdened engine and lacked reliability. Variant: Jagdtiger was armed with a 128 mm L/55 Pak44 gun (Sd. Kfz. 186) Panzer VII "Löwe" Panzer VII Löwe was a proposed superheavy tank design. It never left the drawing board. Panzer VIII "Maus" Also known as: "Panzer VIII", 'Maus' Panzer VIII Maus was a German 188t super heavy tank. Two prototypes were built and only one prototype got