WS-1B 320 mm Multiple Rocket
The WS-1B Multiple Launch Rocket System has been developed by the China
National Precision Machinery Corporation (CPMIEC), based in Beijing, China.
The WS-1B is a long range artillery rocket weapon and an advanced derivative of
the 302 mm WS-1 in service with the Army of the People's Republic of China. The
system fills the gap in firing range between a conventional self propelled
artillery system and a surface to surface tactical missile. The system is
operated in a defensive or offensive role for deployment against targets deep
behind enemy lines including military bases, massed armoured divisions, missile
launch site, airports and airstrips, harbours and military industrial bases.
The rocket launcher system is mounted on a 6 x 6 flatbed truck on a turntable.
The WS-1 rocket reaches a maximum speed of Mach 3.6 and the maximum flight
altitude is 30 km, giving a minimum firing range of 20 to 30 km and a maximum
firing range of 80 km with probability deviation of 1%. The WS-1 rocket ,
length 4.52 m and diameter 0.302 m, weighs 520 kg with a 150 kg warhead.
The WS-1B rocket with a new high performance rocket motor and warhead, reaches
a maximum speed of Mach 5 and maximum flight altitude of 60 km, giving a
minimum firing range of 80 km and a maximum firing range of 180 km. The
probability deviation is between 1% and 1.5%. The WS-1B rocket is longer than
the WS-1, with length 6.182 m, and diameter of 0.320 m. The take-off weight is
708 kg with a 150 kg warhead.
The free rocket consists of the warhead and fuse, an FG-43 rocket motor and the
tail section. The FG-43 rocket motor is a single chamber, solid rocket motor
with an advanced hydroxy-terminated polybutadine (HTPB) composition rocket
Two types of warhead can be fitted on the WS-IB rocket, a ZDB-2 blasting
warhead or an SZB-1 submunition, which are selected according to the
characteristics of the target.
The ZDB-2 blasting warhead is loaded with steel balls and prefabricated
fragments. The SZB-1 submunition warhead provides an effective high power
weapon against massed tanks. When the SZB-1 submunition warhead detonates, just
under 500 bullets are expelled under high pressure.
The ground equipment of the multiple rocket system comprises: a rocket launch
truck, a transport and loading truck and a firing command truck. An army rocket
battery is equipped with one DZ-88B firing command truck, six to nine HF-4
rocket launch trucks and between six and nine QY-88B transport and loading
trucks. Each rocket launch truck is equipped with over 20 rounds of rockets.
The DZ-88B Firing Command Truck is equipped with a radio communications and
data transmission system; a firing and control computer and simulation
trajectory system; a global positioning system; a gyro-theodolite directional
system plus infrared ranging system; a field meteorological detection system;
and a communication control unit.
The HF-4 rocket launch truck is available in a four launch tube or eight launch
tube configuration. The launch tubes have an elevation range of 0 to 60 degrees
with an elevation speed between 0.1 and 3 degrees per second. The azimuth range
is from -30 to +30 degrees and the azimuthal adjustment speed is from 0.1 to 4
degrees per second. The truck is equipped with four hydraulically operated
stabilisers which are lowered in preparation for the rocket launch.
Courtesy of www.sinodefence.com