Artillery
Brief History of PLA's Type 83 273mm Multiple Launch Rocket System
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Brief History of PLA's
Type 83 273mm
Multiple Rocket Launcher System
by Leon Ing
Based on analysis data modifications were drawn up to solve the problems. They included:
a) Redesign of the launcher from a exposed frame and rail to a enclosed case type design. This resulted in the dramatic reduction of lateral forces from rocket motor gases on lateral components of the launcher, and diverted the forces downward and away from the launcher.
b) Reduction of the spin motor apparatus's width, thus reducing torque from jetting gases;
c) Reducing the gap between the launcher casing and rocket body so vibration sources were minimized while the rocket being propelled out of the launcher and while still on the launch rail;
d) Improved quality control during manufacturing, which improved the launcher's vibration damping characteristics by increasing stiffness of the stabilizing apparatus and lateral locking system.
After these improvements the system finally achieved range dispersion of 1/134 (0.7%) and lateral dispersion of 1/83 (1.2%), performance as good as or better than other spin-and-fin stabilized rockets of the day. This then met the 'Combat Accuracy Criteria' for artillery weaponry set by the People’s Liberation Army.
The Type 83 MRL is currently in limited service with the PLA.
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