Specifications - WS 1B Multiple Launch Rocket System, China

system response time	20 minutes
launch tube	4 or 8 launch tubes
maximum firing range	180 km
minimum firing range	80 km
maximum flight altitude	60 km
maximum velocity	mach 5.0
maximum acceleration	40 g
error of probability	1% to 1.5%
WS1b rocket
diameter of rocket	302 mm
length of rocket	6182 mm
Take-off weight	708 kg
stabilisation mode	slow-spinning plus fins
ZDB-2b blasting warhead
weight of warhead	150 kg
charge of warhead	70 kg
effective fragments	26000 pieces, steel balls and prefabricated fragments
effective lethal radius	>70 metres
SZB-1 submunition warhead
Length	1380 mm
number of bullets	466 bullets
dispersion area	28,000 square metres
Armor-piercing thickness	>70 mm
rocket motor FG-43
Length	4709 mm
gross weight	538 kg
gross weight of solid propellant	370 kg
total impulse	888.9 kN
maximum thrust	275 kN
working time of motor	5.3 seconds
HF-4 rocket launch truck
number of launch tubes	4 or 8
elevation range	0 to 60 degrees
azimuth range	-30 to +30 degrees
elevation adjustment	0.1 to 3 degrees per second
azimuth adjustment	0.1 to 4 degrees per second