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Fighting vehicle BM-14 (8U32 index)

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    Basing

    :

    chassis

    management system:

    Uncontrolled

    Warhead:

    high-explosive/fragmentation/incendiary, Chemical, smoke burning

    Application:

    Multiple rocket launchers

    Country:

    Russia

    Range:

    10 km.

    year development:

    1952

    fighting machine BM-14 (index 8u32)

    Successful application

    Red Army rocket artillery during World War II contributed to the deployment of new research and development work in this field, both in its final stages, and after its completion. At the same time as improved combat vehicles and missiles.

    During development system designated "M-13A." Its development was carried out on the basis of tactical and technical requirements on the number 006 rocket system "M-13A" for the 4th Artillery Office Home Office of the Armed Forces, approved the artillery commander of the armed forces, Chief Marshal of Artillery Voronov 04/25/1947

    in 1952 by the Soviet Army adopted a fighting machine BM-14 (index 8U32) to start a 140-mm shells turbojet M-14-PF. In 1955 has been adopted chemical shell MS-14. In 1958 has been adopted shell M-14D for the production of smoke screens.

    Later start for these shells have been developed in the USSR fighting machine BM-14M (2B2), BM-14mm (2B2R), BM-14-17, BM-14-17M and towable ramp PAR-14. In Poland, was created towable ramp WP-8z. Also aware of portable single-barrel setup used by military special forces.

    This system for a long time produced the Soviet defense industry and, in the Soviet Army, are adopted by the armies of the Warsaw Pact, as well as in Algeria, Angola, Cambodia (option available on crawler), China, Egypt, North Korea , Somalia, Syria and Vietnam. In some countries, it may still be operated.

    Composition

    fighting machine BM-14 (index 8u32) Fighting vehicle BM-14 is based on a classic layout scheme: artillery unit located at the rear of the chassis. It consists of a package guides, farm, swing frame, rotating, lifting and counterbalancing mechanisms, sighting devices, electrical cabinets, sub-frame chassis and special equipment. (See Gallery image BM-14).

    The guide consists of sixteen shotgun tubes, arranged in two rows of eight each (see photo). On pipes mounted contact levers, front and rear stoppers (see diagram). Farm (pack guides, cradle) - welded construction. She was placed in the bearing bracket and swing frame with swinging trunks formed a part of the war machine. The farm consisted of a front and rear ferrule and the transverse pipes. Rotary screw-type mechanism. Linkage screw type. Counterweight mechanism push-type, designed to reduce stress on the drive arm hoist. Swing frame with the installed farm guidance mechanisms and balancing mechanism is a rotating part. Rotating frame under the action of rotating mechanism rotates on a pedestal, on which rested three vertical rollers. Six horizontal rollers were centered rotation of the swing frame and kept it from tipping over. With the guidance package guide mechanisms may be induced in a vertical plane in the range of angles from 0 ° to +50 °, the angle of horizontal firing is 140 ° (70 ° left and right of the longitudinal axis of the machine).

    BM-14 was completed by mechanical panoramic sight with a drum, as the supply side level.

    When translating

    launcher from traveling to combat sight glass cockpit closed folding armor panels and aft chassis hung above the ground with two poles with screw jacks. It takes 1.5-2 minutes. Shooting from the launcher can be carried out by single shots, but the main firing mode - volleys. Volley duration is 7-10 seconds. Management of shooting carried out from the cabin or using the keypad up to 60 m from the war machine. Loading the launcher is made by hand for 2-3 minutes. In curb installation is capable of performing long marches. Position is a crew of seven. On the march vehicle commander and driver are placed in the cockpit, and the rest of the calculation - the seats mounted behind the cab open.

    Originally

    fighting machine BM-14 was placed on the basis of modified triaxial cargo roader ZIS-151, and then rename the Stalin Plant in Plant Likhachev - ZIL-151. Artillery units fighting machines BM-14M (2B2) and BM-14mm (2B2R) mounted on a modified truck chassis ZIL-157 and ZIL-131, respectively. Artillery unit combat vehicles BM-14 (8U32), BM-14M (2B2), BM-14mm (2B2R) was the same. Swing frame was unified for the above fighting vehicles, as well as machines for the BM-24.

    use when creating fighting machine BM-14 chassis roader ZIS-151 had a six-cylinder petrol engine ZIS-121 capacity of 92 liters. sec. (at 2600 rpm. / min.) In the transmission used-disc dry clutch, five-speed transmission and two-speed transfer box. Operating range transmission - 14. Chassis is made on the wheel formula 6x6. Front suspension - two longitudinal semi-elliptic leaf springs with hydraulic shock absorbers double acting rear - balancer. In front wheel suspension and hydraulic shock absorbers are included lever constant velocity joints like "Bendix-Weiss." The equipment also included a car hydraulic brakes. Launcher on this chassis has a satisfactory patency on rough terrain. When driving on the highway, it has a maximum speed of 60 km / hour.

    Chassis ZIL-131, which housed the BM-14mm, has a petrol engine 150 hp. s. Its throughput is significantly increased due to the presence of a centralized system of air pressure in the tires.

    main type of projectile for the BM-14, BM-14M, BM-14mm was a 140-mm unguided missile turbojet M-14-PF (see description).

    In high-explosive projectile M-14OF ammunition in these combat vehicles were smoke burning shells of M-14D (see description).

    were developed and also produced a 140-mm turbojet with warhead curb warfare agents.

    PERFORMANCE

    Feature

    BM-14

    BM-14M

    BM-14mm

    Stowed Dimensions, mm:
    - The length of the winch
    - Length without winch
    - Width
    - Height


    7260
    6930
    2300
    2650


    7260
    6930
    2330
    2560


    7260
    6930
    2500
    2750

    height at maximum angle of elevation, mm

    2970

    3045

    3230

    Weight:
    - BM charged with calculation
    - BM without shells and calculation
    - Artillery unit
    - Farm
    - Swing frame
    - Tubes with worm gear
    - Hoist
    - Counterweight mechanism
    - Jack
    - Seat support strut
    - Cab protection


    8200
    7000
    2120
    118
    280
    200
    60
    40
    33,5
    114
    71


    8080
    7000
    2120
    118
    280
    200
    60
    40
    33,5
    114
    71


    9340
    7000
    2120
    118
    280
    200
    60
    40
    33,5
    114
    71

    Transfer time from traveling to combat without loading, min

    1.5

    Transfer time from the fighting position to the stowed, min

    2

    time required for loading the combat vehicle, min

    2

    force on the handle drive hoist kg

    Prior

    10

    force on the handwheel drive rotating mechanism, kg

    Prior

    8

    Change elevation in one turn of the handle drive hoist

    0 ° 40 '

    Changing

    angle per one rotation of the rotary drive mechanism of the flywheel

    1 ° 40 '

    Maximum speed

    charged BM, km / h

    Prior

    60

    greatest traction winches, kg

    4500

    greatest depth of the ford with a hard bottom, surmounted charged BM, mm

    750

    greatest gradeability BM charged with dry and hard ground, hail.

    28

    Minimum time volley with

    7-10

    launcher

    Number of barrels, pieces

    16

    Inner barrel diameter, mm

    140,3

    Barrel length, mm

    1370

    Weight

    barrel kg

    24

    Elevation, deg:
    - Minimum
    - Maximal


    0
    +50

    traverse, hail:
    - At elevation angles from 0 ° to 50 ° (in the horizontal firing sectors of ± 41 ° to ± 70 °)
    - At elevations from +10 ° to +50 °


    29
    ± 70





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