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The Sturmpanzer IV 15cm StuH 43 SdKfz 166 was a Self Propelled Artillery vehicle designed in 1942, manufactured by Vienna Arsenal, it was based on the fully tracked PzKpfw IV chassis and was in use from 1943 to 1945. It was commonly called a Brummbär. |
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| General Details (SP Artillery) |
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| | Specifications | | Operational Date(s) | 1943 - 1945 | | Ordnance classification | SdKfz 166 | | Quantity Produced | 298 | | Weight | unknown | | Crew | 4 | | M.G's small | 2 | | M.G's large(>10mm) | n/a | | Length | 5.97 mtr | | Width | 2.86 mtr | | Height | 2.54 mtr | | Engine Details/Performance | | Max Road Speed | 25 mph | | Max Cross Country Speed | 10 mph | | Range Road | 131 miles | | Range Cross Country | 52 miles | | Fuel Type | Petrol | | Fuel Capacity | unknown | | Horse Power | 300 hp | | Power/Weight | unknown | | | General Information | The Sturmpanzer IV 15cm StuH 43 SdKfz 166 was a Self Propelled Artillery vehicle designed in 1942, manufactured by Vienna Arsenal, it was based on the fully tracked PzKpfw IV chassis and was in use from 1943 to 1945. It was commonly called a Brummbär.
It was armed with 2 light machine guns. Its main armament consisted of a 15cm StuH 43 weighing 38.000 kg and with a maximum range of 4,700 metres.
This vehicle was a modified Panzer IV armed with a short 150mm gun that fired the standard sIG 33 shells. | |
| | Turret | | Front | n/a | | Side | n/a | | Rear | n/a | | Top | n/a |
| | Superstructure | | Front | | 100mm | @ | 40° | (131mm) | | Side | | 50mm | @ | 15° | (52mm) | | Rear | | 30mm | @ | 25° | (33mm) | | Top | | 20mm | @ | 83° | (20mm) |
| | Hull | | Front | | 80mm | @ | 12° | (82mm) | | Side | | 30mm | @ | 0° | (30mm) | | Rear | | 20mm | @ | 10° | (20mm) | | Top | | 10mm | @ | 90° | (10mm) |
| | Armour (x)mm @ (y)° (Effective mm @ 0°) | | Effective Armour - Maximum 131 mm - Minimum 10 mm |
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| Weapon Details |
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15cm StuH 43
15cm Sturmhaubitze 43
(translates as Assault Howitzer) |
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| | History | |
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| | Designed by Skoda for the Brummbär this was an infantry support howitzer. |
| | Manufacturer | Skoda |
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| | Calibre | 150mm |
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| | Length | L/12 |
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| | Rate of Fire | 2rpm |
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| Ammunition Details |
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| Name/Id |
Calibre Weight MVelocity |
Explosive Content |
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15cm I Gr 33
(HE High Explosive)
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150mm 38Kg 240M/Sec | 8.300Kg explosive |
| Maximum Range not shown as gun elevation is limited |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.42 |
0.85 |
1.75 |
3.68 |
5.81 |
8.14 |
10.7 |
13.5 |
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| lateral dispersion means the side to side variation of the shell from the aiming point |
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| 50%(CEP) of shells land within +/- (mtr) |
0.12 |
0.12 |
0.12 |
0.21 |
0.32 |
0.43 |
0.53 |
0.64 |
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| 80% of shells land within +/- (mtr) |
0.15 |
0.15 |
0.15 |
0.27 |
0.41 |
0.55 |
0.68 |
0.82 |
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| 95% of shells land within +/- (mtr) |
0.24 |
0.24 |
0.24 |
0.41 |
0.63 |
0.84 |
1.04 |
1.25 |
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| range dispersion means the back to front variation of the shell from the aiming point |
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| 50%(CEP) of shells land within +/- (mtr) |
0.15 |
0.15 |
0.15 |
0.27 |
0.40 |
0.53 |
0.67 |
0.80 |
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| 80% of shells land within +/- (mtr) |
0.19 |
0.19 |
0.19 |
0.35 |
0.51 |
0.68 |
0.86 |
1.02 |
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| 95% of shells land within +/- (mtr) |
0.29 |
0.29 |
0.29 |
0.53 |
0.78 |
1.04 |
1.31 |
1.57 |
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| Direct Fire |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.42 |
0.85 |
1.75 |
3.8 |
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| Hit Probability(%) |
98 |
92 |
68 |
15 |
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| Blast/Fragmentation Effects |
| Burst radius Infantry in open 99% kill | 6 mtr |
Burst radius Infantry in open 66% kill | 12 mtr |
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| Burst radius Infantry in open 33% kill | 30 mtr |
Armour Penetration inc roof at 2 mtr | 24 mm |
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| An explosion within 6 mtr of infantry in the open will cause 99% casualties - lethal. |
| An explosion within 12 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. |
| An explosion within 30 mtr of infantry in the open will cause 33% casualties. |
| The blast effect of this shell exploding within 2 mtr of an armoured vehicle will penetrate 24 mm of the tank armour including the roof. |
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15cm I Gr 39 Hl/A
(HEAT High Explosive Anti-Tank)
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150mm 25Kg 600M/Sec | |
| Quoted Penetration 185mm @ 500mtr/0° |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.17 |
0.34 |
0.68 |
1.4 |
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| Penetration(mm@30°) |
185 |
185 |
185 |
185 |
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| Penetration(mm@0°) |
185 |
185 |
185 |
185 |
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| Hit Probability(%) |
98 |
98 |
95 |
82 |
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About Penetration Figures
All penetration figures in this database are calculated to a common standard
based on German WWII testing criteria (complete penetration with functioning fuze).
This allows direct comparison between all nations' guns.
Original national test figures would be higher for some nations due to different criteria:
- German: 1.00? (baseline - strictest)
- British: 1.02? (slightly looser)
- American: 1.05? (50% mass through plate)
- Soviet: 1.10? (75% mass through plate)
For example, a Soviet gun showing 159mm here would be published as ~175mm in Soviet documents,
and a German gun showing 120mm would be published as 120mm in German documents.
The 159mm figure is directly comparable to the German 120mm - the Soviet gun really was more powerful.
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| National Testing Standards |
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| German: | 1.00? - Complete penetration, fuze functions (strictest) |
| British: | 1.02? - Complete penetration |
| American: | 1.05? - 50% of shell mass through plate |
| Soviet: | 1.10? - 75% of shell mass through plate |
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All database figures are normalized to German standard for direct comparison.
Multiply by the factor above to see original national test figures.
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Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.
The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive
and numerous books and websites that have provided the detailed information that has not been available anywhere else. The
information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre,
the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation
originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.
© WWIITanks 1980-2026
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