BM-13 カチューシャ STZ-5 NATI
BM-13 カチューシャ STZ-5 NATI
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説明アルバム 143 の歩き回る写真 BM-13 カチューシャ STZ-5 NATI

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Designation: The BM-13 (Boyevaya Mashina, ‘Combat Vehicle’) Multiple Rocket Launcher System, commonly nicknamed “Katyusha” (little Katie). The STZ-5 was a tracked artillery tractor used as one of its early, less common chassis.

The BM-13 Launcher System

The Katyusha was the Soviet Union’s first mass-produced self-propelled rocket artillery weapon, gaining infamy during World War II for its devastating saturation fire and distinctive, howling sound, which led German troops to dub it “Stalin’s Organ.”

  • 役割: Area saturation, psychological warfare, and shock effect rather than precision fire.
  • 武装: The BM-13 typically used 132 mm M-13 unguided rockets.
  • Launcher: The system consisted of parallel launch rails, usually 16 on the standard version, mounted longitudinally over the cab and fired over the rear.
  • Salvo Power: A salvo from a battery of four BM-13 launchers could deliver over 4 tons of high explosives across a wide target area in under 10 seconds.

The STZ-5 Chassis

The Stalingrad Tractor Zavod (Factory) built the STZ-5, a tracked artillery and transport tractor, between 1937 and 1942. While the standard BM-13 was mounted on trucks (like the ZiS-6 or later the Lend-Lease Studebaker US6), a small number were mounted on the STZ-5 chassis.

  • Adaptation: The STZ-5’s cargo bed was removed, and the BM-13 launch rack was installed in its place.
  • 機動力: While much slower than the wheeled truck versions, the tracked STZ-5 offered superior cross-country and off-road performance (a key advantage during the muddy Russian Rasputitsa seasons).
  • Crew Protection: The cab was open-topped or lightly protected, consistent with its tractor design, focusing on transport capacity rather than combat protection.
  • Service: The STZ-5 mounted Katyushas first saw combat around Moscow in 1941 but were eventually overshadowed by the more numerous and faster truck-based versions.

Service and Specifications

The Katyusha’s speed and ability to rapidly relocate after firing (shoot-and-scoot) were crucial for avoiding enemy counter-battery fire. The combination with the STZ-5 provided a mobile solution for challenging terrain.

Key Specifications (BM-13 on STZ-5)

Characteristic 仕様
Country of Origin ソ連
Chassis Type STZ-5 Tracked Artillery Tractor
Mass (Approx.) Around 6.6 tonnes (launcher included)
Max Road Speed 22 km/h (14 mph)
主砲 16 rails for 132 mm M-13 rockets
Max Rocket Range Approximately 5.5 – 8.5 km
乗組員 2-3 (for the vehicle) + Rocket Battery Crew

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