JaG-12

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JaGAZ
Model of the JaG-12 in the Polytechnic Museum in Moscow
Model of the JaG-12 in the Polytechnic Museum in Moscow
JaG-12
Manufacturer: Ярославский государственный автомобильный завод
Sales designation: ЯГ-12
Production period: 1932
Previous model: JaG-10 (indirect)
Successor: none
Technical specifications
Designs: Cot
Engines: Continental 22P gasoline engine
Power: 88 kW
Payload: 12 t
Perm. Total weight: 20 t

The JaG-12 ( Russian ЯГ-12 ) was a truck made by the Soviet manufacturer Jaroslawski Gossudarstwenny Avtomobilny Sawod (later Jaroslawski Awtomobilny Sawod ), in 1932 a single copy of this type was made. It was one of the first trucks in the world with four axles and all-wheel drive (8 × 8). Comparable vehicles were only produced in series in the Soviet Union well after the Second World War.

vehicle description

The production of the truck, which had been developed by a collective of designers from the three-axle JaG-10 , began in November 1932. At that time, some of the technology could not be supplied by the Soviet automotive industry, which is why the engine and gearbox are on Used parts from abroad. The truck was the first four-axle four-wheel drive vehicle made in the Soviet Union.

The two front and rear axles are located together in a bogie that is suspended from the frame. The axes are rigid with respect to each other, but the entire frame is movably supported with respect to the frame. If the truck ran over a bump, none of the wheels were suspended in the air. All axles were leaf-sprung and both front axles were steerable. The latter were designed as De Dion axles . The drive power of the engine was transmitted to all axles via a classic four-speed gearbox and a two-stage transfer case using cardan shafts.

In 1933 the vehicle was subjected to extensive tests. Both the properties in the field and the long-term properties were evaluated on a test drive of approx. 10,000 kilometers in length. When the tests were completed, the vehicle went to Red Army units in Saratov . A series production was considered, but rejected in favor of simpler constructions. Nothing is known about the whereabouts of the JaG-12.

Technical specifications

For the JaG-12 from 1932.

  • Engine: six-cylinder petrol engine
  • Engine type: Continental-22R
  • Displacement: 8190 cm³
  • Power: 120 PS (88 kW) at 2400 revolutions per minute
  • Gearbox: Brown-Lipe-554
    • Number of forward gears: 4 (effectively 8 due to the downstream transfer case)
    • Number of reverse gears: 1 (effectively 2 due to the downstream transfer case)
  • Transfer case: two-stage
  • Tank capacity: 164 l
  • Consumption: 52 l / 100 km under good road conditions
  • Top speed: 45 km / h
  • Seats: 3 in the cabin + optionally 30 on the loading area
  • Maximum negotiable slope: 30 °
  • Maximum passable snow depth: 50 cm
  • Drive formula : 8 × 8

mass and weight

  • Length: 6586 mm
  • Width: 2390 mm
  • Height: 2770 mm
  • Ground clearance: 320 mm
  • Empty weight: 8000 kg
  • Permissible total weight: 20,000 kg
  • Payload: 12,000 kg (8,000 kg in the field)

literature

  • LM Shugurov: АВТОМОБИЛИ России и СССР. First part. Ilbi / Prostreks, Moscow 1993, ISBN 5-87483-004-9 .
  • Dimitri Daschko: Советские грузовики 1919–1945. Automobil-Archiv-Fond, Moscow 2014, without ISBN.
  • Ministry of Automobile Transport of the RSFSR; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). Transport Publishing House, 6th edition, Moscow 1972.
  • Yevgeny Kochev: Автомобили Советской Армии 1918–1945 . Eksmo, Moscow 2009, ISBN 978-5-699-36762-7 .

Individual evidence

  1. ↑ a b c d L. M. Shugurow: АВТОМОБИЛИ России и СССР. First part. P. 133 f.
  2. ^ Yevgeny Kochnev: Автомобили Советской Армии 1918–1945 . P. 305.
  3. ^ Ministry of Automobile Transport of the RSFSR; Vehicle Construction Institute NIIAT: Short Automobile Manual (краткий автомобильный справочник). P. 478 f.

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