Howitzer 203mm M1931 B4 - Gå Rundt

203 mm M1931 B-4
Land	URSS
Type	Tung Howitzer
Produsert	1932-1940-tallet
Bygget	871

203 mm howitzer M1931 var en sovjetisk tung howitzer fra 203 mm. Under andre verdenskrig var det under kommando av Stavkas strategiske reserve. Det ble kalt "Stalins slegge" av tyske soldater. Disse kanonene ble brukt med suksess mot tunge tyske festningsverk og i urbane kamper for å knuse beskyttede bygninger og bunkere. Dette våpenet ble brukt til slutten av krigen i slaget ved Berlin hvor den røde hæren ville bringe disse våpnene opp på punkt blank rekkevidde for å knuse tyske festningsverk med sine tunge 203mm skjell. Våren 1944 ble et KV-1s tankkabinett brukt til å lage en selvgående variant, S-51. Den tunge rekylen fra snuteeksplosjonen kastet mannskapet av setene og skadet sendingen, og så ble den kansellert.

Howitzer 203mm M1931 B4
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Bilder	200

203mm B-4 Howitzer 001

203mm B-4 Howitzer 002

203mm B-4 Howitzer 003

203mm B-4 Howitzer 004

203mm B-4 Howitzer 005

203mm B-4 Howitzer 006

203mm B-4 Howitzer 007

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203mm B-4 Howitzer 009

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203 mm Howitzer Mod. 1931 (B-4)
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203 mm Howitzer M1931

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General Overview

The B-4 was a Soviet high-power heavy howitzer used to destroy heavily fortified positions and bunkers during World War II.

Official Name	203 mm howitzer M1931 (B-4)
Place of Origin	Sovjetunionen
Produsenten	Barrikady Plant
Production Years	1932–1945
Primary Role	Siege Artillery / Crushing Fortifications
Kallenavn	Stalin’s Sledgehammer (coined by German soldiers)

Tekniske spesifikasjoner

Kaliber	203 mm (8 inch)
Mass (Combat)	17,700 kg (39,022 lbs)
Mass (Travel)	19,000 kg (41,888 lbs)
Shell Weight (HE)	100 kg (220 lbs)
Maximum Firing Range	18 km (11 mi)
Rate of Fire	Approx. 1 round every 4 minutes (Slow due to shell weight)
Carriage Type	Tracked Carriage (Unique feature for stability)
Mannskapet	15
Towing Vehicle	Voroshilovets or Komintern Artillery Tractor

Operational Role in WWII

The B-4 was held under the direct command of the Stavka Strategic Reserve and was deployed only where its massive firepower was required.

Winter War: Known as the “Karelia Sculptor” for its effectiveness against Finnish pillboxes on the Mannerheim Line.
Urban Combat: Used for direct fire against German fortified buildings and bunkers, notably during the Battle of Berlin in 1945.
Loading Challenge: Due to the heavy 100 kg projectile, a special hoisting crane was often used to assist in loading the breech.

Key Innovation: The unique tracked carriage allowed the gun to be fired directly from the ground without a separate firing platform, a significant innovation for heavy artillery of that era.