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The Heuschrecke 10 (English: Grasshopper 10) was a prototype self-propelled gun and Waffenträger (English: “Weapon carrier”) developed by Krupp-Gruson between 1943 and 1944. The official designation of the vehicle was 105 mm leichte Feldhaubitze 18/1 L/28 auf Waffenträger Geschützwagen IVb and was to be built in Magdeburg, Germany. The Heuschrecke featured a removable turret which could be deployed as a pillbox or towed behind the vehicle as an artillery piece.
Krupp produced only three prototypes from 1942–1943. The Heuschrecke initially made use of a shortened Panzerkampfwagen IV (Panzer IV) chassis, but it was later switched to the Geschützwagen IV chassis, developed for the Hummel self-propelled gun. Mass production of the Heuschrecke 10 was scheduled to start in February 1945, but never occurred.
The Sturm-Infanteriegeschütz 33B was a German self-propelled heavy infantry gun used during World War II. A new, fully enclosed, and heavily armored boxy casemate superstructure was built on the chassis of the Sturmgeschütz III. It mounted the improved sIG 33/1 infantry gun, offset to the right side, for which 30 rounds were carried. It could only traverse 3° left and right, elevate 25°, and depress 6°. A Maschinengewehr 34 machine-gun was fitted in a ball mount on the left side of the superstructure with 600 rounds. Its traverse limits were 15° left and 20° right, and it could elevate 20° and depress 10°.
Sturmpanzer I Bison – 15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B
The 15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B (sometimes referred to as the Sturmpanzer I Bison) was a German self-propelled heavy infantry gun used during World War II.
Sturmpanzer II Bison
The 15 cm sIG 33 auf Fahrgestell Panzerkampfwagen II (Sf), sometimes referred to as the Sturmpanzer II Bison, was a German self-propelled heavy infantry gun used during World War II.
Sturmpanzer – Brummbar
The Sturmpanzer (also known as Sturmpanzer 43 or Sd.Kfz. 166) was a German armoured infantry support gun based on the Panzer IV chassis used in the Second World War. It was used at the Battles of Kursk, Anzio, Normandy, and helped to put down the Warsaw Uprising. It was known by the nickname Brummbär (German: “Grouch”) by Allied intelligence,a name which was not used by the Germans. Just over 300 vehicles were built and they were assigned to four independent battalions.
Sturmtiger (German: “Assault Tiger”) is the common name of a World War II German assault gun built on the Tiger I chassis and armed with a large rocket launcher. The official German designation was Sturmmörserwagen 606/4 mit 38 cm RW 61. Its primary task was to provide heavy fire support for infantry units fighting in urban areas. The few vehicles produced fought in the Warsaw Uprising, the Battle of the Bulge and the Battle of the Reichswald. The fighting vehicle is also known under a large number of informal names, among which the Sturmtiger became the most popular.