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Sturmpanzer I Bison

Sturmpanzer I Bison

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G11 Bison I/Sidebar


The Sturmpanzer I Bison is a German tier 2 self-propelled gun. It has a large gun for its tier and is considered fairly dangerous. It has sluggish movement, and a slow rate of fire, but it can one-shot almost any tier 2 - 4 tank it hits directly.

The Sturmpanzer I Bison leads to the Sturmpanzer II.

G11 Bison I/ModulesG11 Bison I/EquipmentG11 Bison I/Consumables

Historical Info

Bison on the Eastern front during the Operation Blau, summer 1942.
A sIG 33 auf Panzerkampfwagen I in Greece

The 15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B was a German self-propelled heavy infantry gun used during World War II. The Invasion of Poland had shown that the towed sIG 33 guns assigned to the infantry gun companies of the motorized infantry regiments had difficulties keeping up with the tanks during combat. The easiest solution was to modify a spare tank chassis to carry it into battle. A sIG 33 was mounted on the chassis of the Panzer I Ausf. B, complete with carriage and wheels, in place of the turret and superstructure. Plates 13 millimeters (0.51 in) thick were used to form a tall, open-topped fighting compartment on the forward part of the hull. This protected little more than the gun and the gunner himself from small arms fire and shell fragments: the loaders were completely exposed. The rearmost section of armor was hinged to ease reloading. There was no room to stow any ammunition, so it had to be carried by a separate vehicle. When mounted, the sIG 33 had a total 25° of traverse and could elevate from -4° to +75°. It used a Rblf36 sight.

The chassis was overloaded and breakdowns were frequent. The vehicle's extreme height and lack of on-board ammunition were severe tactical drawbacks.

Thirty-eight were produced in February 1940, by Alkett. Thirty-six of these were organized into independent schwere Infanteriegeschütz-Kompanie ("Self-propelled Heavy Infantry Gun Companies"); mot.S. Numbers 701-706 and these were assigned to the 1st, 2nd, 5th, 7th, 9th, and 10th Panzer Divisions in the Battle of France[1] as well as Operation Barbarossa[2]. The 705th and 706th were destroyed during Operation Barbarossa, belonging to the 7th and 10th Panzer Divisions respectively. Of the remaining companies, only the 701st participated in the opening stages of the subsequent Case Blue in 1942, although it, and its parent 9th Panzer Division, were transferred to the Army Group Center by the end of the summer of 1942[3]. The last reference to them is with the 704th Company of the 5th Panzer Division during the middle of 1943[4].

German Tanks
Light Tanks Leichttraktor  • Pz.Kpfw. 35 (t)  • Pz.Kpfw. 38H 735 (f)  • Pz.Kpfw. I  • Pz.Kpfw. II  • Pz.Kpfw. 38 (t)  • Pz.Kpfw. I Ausf. C  • Pz.Kpfw. II Ausf. G • Pz.Kpfw. II Ausf. J  • Pz.Kpfw. II Luchs  • Pz.Kpfw. III Ausf. A  • T-15  • Pz.Kpfw. 38 (t) n.A.  • VK 16.02 Leopard  • VK 28.01  • Aufklärungspanzer Panther
Medium Tanks Pz.Kpfw. S35 739 (f)  • VK 20.01 (D)  • Pz.Kpfw. III  • Pz.Kpfw. III/IV  • Pz.Kpfw. IV  • T-25  • Pz.Kpfw. IV Hydraulic  • VK 30.01 (D)  • VK 30.01 (P)  • VK 30.02 (M)  • Pz.Kpfw. IV Schmalturm  • Pz.Kpfw. V/IV  • Pz.Kpfw. V/IV Alpha  • VK 30.02 (D)  • Pz.Kpfw. V Panther  • Panther/M10  • Indien-Panzer  • Panther II  • Leopard prototyp A  • E-50  • Leopard 1  • E-50 Ausf. M
Heavy Tanks Pz.Kpfw. B2 740 (f)  • Durchbruchswagen 2  • VK 30.01 (H)  • VK 36.01 (H)  • Pz.Kpfw. VI Tiger  • Pz.Kpfw. VI Tiger (P)  • Löwe  • Pz.Kpfw. Tiger II  • VK 45.02 (P) Ausf. A  • E-75  • VK 45.02 (P) Ausf. B  • E-100  • Maus
Tank Destroyers Panzerjäger I  • Marder II  • Hetzer  • Marder 38T  • StuG III  • Pz.Sfl. IVc  • Dicker Max  • JagdPz IV  • Nashorn  • E-25  • Jagdpanther  • Pz.Sfl. V  • 8,8 cm PaK 43 Jagdtiger  • Ferdinand  • Jagdpanther II  • Rhm.-Borsig Waffenträger  • Jagdtiger  • Waffenträger auf Pz. IV  • JagdPz E-100  • Waffenträger auf E 100
Self-Propelled Guns G.Pz. Mk. VI (e)  • Sturmpanzer I Bison  • Wespe  • Sturmpanzer II  • Pz.Sfl. IVb  • Grille  • Hummel  • G.W. Panther  • G.W. Tiger (P)  • G.W. Tiger  • G.W. E 100

Self-Propelled Guns
USA II T1 HMC  • III T18 HMC  • III M7 Priest  • IV T82 HMC  • IV M37  • V M41 HMC  • VI M44  • VII M12  • VIII M40/M43  • IX M53/M55  • X T92 HMC
UK II Loyd Gun Carriage  • III Sexton II  • III Sexton I Gold  • IV Birch Gun  • V Bishop  • VI FV304  • VII Crusader 5.5-in. SP  • VIII FV207  • IX FV3805  • X Conqueror Gun Carriage
Germany II G.Pz. Mk. VI (e)  • III Sturmpanzer I Bison  • III Wespe  • IV Pz.Sfl. IVb  • IV Sturmpanzer II  • V Grille  • VI Hummel  • VII G.W. Panther  • VIII G.W. Tiger (P)  • IX G.W. Tiger  • X G.W. E 100
France II Renault FT 75 BS  • III Lorraine 39L AM  • IV AMX 105 AM mle. 47  • V AMX 13 105 AM mle. 50  • V 105 leFH18B2 Gold  • VI AMX 13 F3 AM  • VII Lorraine 155 mle. 50  • VIII Lorraine 155 mle. 51  • IX Bat.-Châtillon 155 55  • X Bat.-Châtillon 155 58
USSR II SU-18  • III SU-26  • IV SU-5  • V SU-122A  • VI SU-8  • VII S-51  • VII SU-14-1  • VIII SU-14-2  • IX 212A  • X Object 261