Sturmpanzer I Bison

Sturmpanzer I Bison

Germany | SPG | Tier III

Battle Tier

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Overview
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[Client Values; Actual values in

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Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.

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48,500   Cost

23046 HP Hit Points

6.76/74.46/9.2 t Weight Limit

Crew

1. Commander (Radio Operator)
2. Driver
3. Gunner
4. Loader
5. Loader

Mobility

60100 hp Engine Power

40/10 km/h Speed Limit

1416 deg/s Traverse

8.8822.42 hp/t Power/Wt Ratio

YesYes Pivot

Armor

// mm Hull Armor

Armament

{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| {{#ifeq:HOLLOW_CHARGE|ARMOR_PIERCING|| HE/HE/HEAT {{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| {{#ifeq:HOLLOW_CHARGE|ARMOR_PIERCING|| HE/HE/HEAT Shells

280/310/305 280/310/305 Shell Cost

350/450/300350/450/300 HP Damage

35/44/9835/44/98 mm Penetration

| |}} | |}} 2.63 r/m  ▲ Standard Gun Reload Times Nominal: 22.8 s 50% Crew: 28.24 s 75% Crew: 24.66 s 100% Crew: 21.86 s Rammer: 19.67 s Vents: 21.38 s Both: 19.24 s Both and BiA: 18.82 s Both and Max Crew %: 18.04 s See Crew, Consumables, or Equipment for more information. | |}} | |}} 2.63 r/m  ▲ Standard Gun Reload Times Nominal: 22.8 s 50% Crew: 28.24 s 75% Crew: 24.66 s 100% Crew: 21.86 s Rammer: 19.67 s Vents: 21.38 s Both: 19.24 s Both and BiA: 18.82 s Both and Max Crew %: 18.04 s See Crew, Consumables, or Equipment for more information. Rate of Fire

| |}} | |}} 920.5 ▲ Standard Gun Using Shell Type 1 (350 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 920.5 50% Crew: 742 75% Crew: 850.5 100% Crew: 959 100% Crew Vents: 980 Rammer: 1064 Both: 1088.5 Both and BiA: 1113 Both and Max Crew %: 1162 Advantageous Damage Per Minute First-shot DPM: 1270.5 50% Crew: 1092 75% Crew: 1200.5 100% Crew: 1309 100% Crew Rammer: 1414 Vents: 1330 Both: 1438.5 Both and BiA: 1463 Both and Max Crew %: 1512 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (450 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 1183.5 50% Crew: 954 75% Crew: 1093.5 100% Crew: 1233 100% Crew Vents: 1260 Rammer: 1368 Both: 1399.5 Both and BiA: 1431 Both and Max Crew %: 1494 Advantageous Damage Per Minute First-shot DPM: 1633.5 50% Crew: 1404 75% Crew: 1543.5 100% Crew: 1683 100% Crew Rammer: 1818 Vents: 1710 Both: 1849.5 Both and BiA: 1881 Both and Max Crew %: 1944 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (300 Damage): Theoretical Damage Per Minute Nominal DPM: 789 50% Crew: 636 75% Crew: 729 100% Crew: 822 100% Crew Vents: 840 Rammer: 912 Both: 933 Both and BiA: 954 Both and Max Crew %: 996 Advantageous Damage Per Minute First-shot DPM: 1089 50% Crew: 936 75% Crew: 1029 100% Crew: 1122 100% Crew Rammer: 1212 Vents: 1140 Both: 1233 Both and BiA: 1254 Both and Max Crew %: 1296 See here, here, or here for more information. | |}} | |}} 920.5 ▲ Standard Gun Using Shell Type 1 (350 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 920.5 50% Crew: 742 75% Crew: 850.5 100% Crew: 959 100% Crew Vents: 980 Rammer: 1064 Both: 1088.5 Both and BiA: 1113 Both and Max Crew %: 1162 Advantageous Damage Per Minute First-shot DPM: 1270.5 50% Crew: 1092 75% Crew: 1200.5 100% Crew: 1309 100% Crew Rammer: 1414 Vents: 1330 Both: 1438.5 Both and BiA: 1463 Both and Max Crew %: 1512 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (450 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 1183.5 50% Crew: 954 75% Crew: 1093.5 100% Crew: 1233 100% Crew Vents: 1260 Rammer: 1368 Both: 1399.5 Both and BiA: 1431 Both and Max Crew %: 1494 Advantageous Damage Per Minute First-shot DPM: 1633.5 50% Crew: 1404 75% Crew: 1543.5 100% Crew: 1683 100% Crew Rammer: 1818 Vents: 1710 Both: 1849.5 Both and BiA: 1881 Both and Max Crew %: 1944 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (300 Damage): Theoretical Damage Per Minute Nominal DPM: 789 50% Crew: 636 75% Crew: 729 100% Crew: 822 100% Crew Vents: 840 Rammer: 912 Both: 933 Both and BiA: 954 Both and Max Crew %: 996 Advantageous Damage Per Minute First-shot DPM: 1089 50% Crew: 936 75% Crew: 1029 100% Crew: 1122 100% Crew Rammer: 1212 Vents: 1140 Both: 1233 Both and BiA: 1254 Both and Max Crew %: 1296 See here, here, or here for more information. Damage Per Minute

| |}} 0.86 m  ▲ With 50% Crew: 1.065 m With 75% Crew: 0.93 m With 100% Crew: 0.825 m With BiA: 0.806 m With BiA and Vents: 0.789 m Maximum possible: 0.756 m For more details, see Crew | |}} 0.86 m  ▲ With 50% Crew: 1.065 m With 75% Crew: 0.93 m With 100% Crew: 0.825 m With BiA: 0.806 m With BiA and Vents: 0.789 m Maximum possible: 0.756 m For more details, see Crew Accuracy

| |}} 6.5 s  ▲ With 50% Crew: 8.052 s With 75% Crew: 7.031 s With 100% Crew: 6.232 s With GLD: 5.666 s With BiA: 6.095 s With BiA and Vents: 5.963 s With both and GLD: 5.421 s Maximum possible: 5.196 s For more details, see Crew or Equipment | |}} 6.5 s  ▲ With 50% Crew: 8.052 s With 75% Crew: 7.031 s With 100% Crew: 6.232 s With GLD: 5.666 s With BiA: 6.095 s With BiA and Vents: 5.963 s With both and GLD: 5.421 s Maximum possible: 5.196 s For more details, see Crew or Equipment Aim time

1616 deg/s Gun Traverse Speed

12° Gun Arc

-4°/+75°-4°/+75° Elevation Arc

2121 rounds Ammo Capacity

General

2020 % Chance of Fire

245 m  ▲ With 50% Crew: 192.5 m With 75% Crew: 218.8 m With 100% Crew: 245 m With Recon and Situational Awareness: 257.4 m With Coated Optics: 269.5 m With Binocular Telescope: 306.25 m Maximum possible: 350.7 m For more details, see Skills or Equipment 245 m  ▲ With 50% Crew: 192.5 m With 75% Crew: 218.8 m With 100% Crew: 245 m With Recon and Situational Awareness: 257.4 m With Coated Optics: 269.5 m With Binocular Telescope: 306.25 m Maximum possible: 350.7 m For more details, see Skills or Equipment View Range

| |}} 265 m  ▲ With 50% Crew: 208.2 m With 75% Crew: 236.6 m With 100% Crew: 265 m With 100% Signal Boost: 318 m When affected by 100% Relaying: 291.5 m Maximum possible: 381.3 m For more details, see Skills or Equipment | |}} 700 m  ▲ With 50% Crew: 550 m With 75% Crew: 625.1 m With 100% Crew: 700 m With 100% Signal Boost: 840 m When affected by 100% Relaying: 770 m Maximum possible: 1007.3 m For more details, see Skills or Equipment Signal Range

Values are Stock - click for TopValues are Top - click for Stock

Sturmpanzer I Bison

III

48500

The Sturmpanzer I Bison is a German tier 3 self-propelled gun.

Developed from 1939 through 1940 on the chassis of the Panzerkampfwagen I. Equipped with the 150 mm s.I.G. 33 gun that was mounted together with the gun carriage. Rate of fire was three rounds per minute; on-board ammunition totaled eight shells. The vehicle required the support of an ammunition carrier. The SPG was used from 1940 through 1943 during the French Campaign, Balkan Campaign, and on the Eastern Front. Later the Sturmpanzer II with a similar gun type was developed.

The Sturmpanzer I Bison marks the end of its German self-propelled gun line.

Modules / Available Equipment and Consumables

Modules

Guns

Tier	Gun	Penetration (mm)	Damage (HP)	Rate of fire (rounds/minute)	Dispersion (m/100m)	Aiming time (s)		Weight (kg)	Price ()
III	15 cm s.I.G. 33 L/11	35/44/98	350/450/300	2.63	0.86	6.5		760	8880

Engines

Tier	Engine	Engine Power (hp)	Chance of Fire on Impact (%)		Weight (kg)	Price ()
I	Krupp M305	60	20		220	290
II	Maybach HL 38 TR	100	20		500	700

Suspensions

Tier	Suspension	Load Limit (т)	Traverse Speed (gr/sec)	Rmin		Weight (kg)	Price ()
II	Sturmpanzer I	7	14	0		2750	560
III	Sturmpanzer I verstärkteketten	9.2	16	0		2750	1160

Radios

Tier	Radio	Signal Range (m)		Weight (kg)	Price ()
II	FuG 2	265		40	0
III	FuG 5	310		50	630
VIII	Fu.Spr.Ger. "a"	700		150	27000

Compatible Equipment

        

Compatible Consumables

                    

Player Opinion

Pros and Cons

Pros:

• Gun range: 600 m
• High damage and penetration, can one shot most LTs in tier upon direct hit
• Large splash radius for its tier and high shell trajectory, can damage unsuspecting opponents
• The first arty in the tech tree to get the 1.13 changes; uniquely can fire HEAT if shotgunning
• Insanely powerful top radio, can stay in touch across the map; despite rarely useful due to its low accuracy at range

Cons:

• Mediocre to bad maneuverability even for a SPG, slow acceleration and traverse
• Difficult to handle: has very limited gun arc, lengthy aim time and bad shell velocity
• Limited damage potential due to slow reload rate and small supply of only 12 shells on board
• Little self-defense capability: extremely low view range, unreliable accuracy even at point-blank range and little armor

Performance

The Bison differentiates itself from the other tier 3 SPGs by firing bigger shells with a slower rate of fire. A direct hit is fatal to most of the opponents it faces. The slow rate of fire is painful, but what really hurts is the time it takes to aim on targets.

If you're looking for an SPG to learn the ropes of the class with, you're probably better off not going with this one, but if you're experienced with higher tier artillery already, then you're probably already used to slow reload times. Regardless, if you don't like the Bison, it doesn't take long to get through it.

The Bison is a very slow SPG, having a low turning rate, acceleration, and top speed. It also doesn't hold too many shells, so firing erratically is ill-advised. The Bison does, however, have an excellent firing angle at long ranges, allowing you to shoot if an enemy is completely behind cover. Also, the Bison can one-shot any tier 2-3 scouts with ease, and any tier 4 scouts with 75% health or lower. Missing in close quarters engagements will prove lethal, however, due to its very slow rate of fire.

In all, consider the Bison the T92 of tier 3 artillery. Although it has a very poor aim time, rate of fire and accuracy, it has a huge splash radius, damage and penetration that will be sure to severely damage or destroy most tanks it fires at. This makes this SPG paradoxically better the higher tier matches it plays in; as the tanks get slower, this artillery gets more effective, crippling tier 4 tank destroyers and easily penetrating even an AMX 40 if you hit the right spots.

Early Research

• The Maybach HL 38 TR engine carries over from the Pz. I and the Pz.Jg I, so you can install it if already acquired.
• Your best bet is likely to research the upgraded suspension first.

Suggested Equipment

   

Gallery

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  Sturmpanzer I Bison front left view

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  Sturmpanzer I Bison front right view

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  Sturmpanzer I Bison rear left view

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  Sturmpanzer I Bison rear right view

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  Sturmpanzer I Bison left view

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  Sturmpanzer I Bison right view

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  Sturmpanzer I Bison back left view

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  Sturmpanzer I Bison back right view

Historical Info

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].

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Historical Gallery

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  A Bison on the Eastern front during Operation Blau, summer 1942

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  A sIG 33 auf Panzerkampfwagen I in Greece

Sources and External Links

References

1. Trojca & Jaugitz, p. 5
2. Niehorster, 1941
3. Niehorster, 1942
4. Chamberlain & Doyle, p. 24

Sources

• Chamberlain, Peter, and Hilary L. Doyle. Thomas L. Jentz (Technical Editor). Encyclopedia of German Tanks of World War Two: A Complete Illustrated Directory of German Battle Tanks, Armoured Cars, Self-propelled Guns, and Semi-tracked Vehicles, 1933–1945. London: Arms and Armour Press, 1978 (revised edition 1993) ISBN 1-85409-214-6.
• Niehorster, Leo. German World War II Organizational Series; Volume 3/I: Mechanized Army Divisions (22 June 1941) Hannover, Germany: Niehorster, 1990
• Niehorster, Leo. German World War II Organizational Series; Volume 4/I: Mechanized Army Divisions (28 June 1942) Hannover, Germany: Niehorster, 1994
• Trojca, Waldemar and Jaugitz, Markus. Sturmtiger and Sturmpanzer in Combat. Katowice, Poland: Model Hobby, 2008 ISBN 978-83-60041-29-1

External Links

• https://en.wikipedia.org/wiki/15_cm_sIG_33_(Sf)_auf_Panzerkampfwagen_I_Ausf_B
• https://tankarchives.blogspot.com/2017/07/small-but-fierce.html
• https://www.wwiivehicles.com/germany/vehicle/self-propelled/sig-33-self-propelled-gun.asp

Germany

Self-Propelled Guns

ja:Tank:G11 Bison I