It is possible that our friend Tuplevtu144 is thinking of the 122mm rockets fitted to some Russian ships as the A-215 system. This is based on the Truck mounted BM-21 or Grad-M. I have added some photos of a Russian Ropucha class (Pr775) which illustrate this system. Most of the time the tubes were not fitted as seen below. Some ships had the curved blast-deflectors fitted - others did not. The tubes could be reloaded from below deck. This rather simple weapon was able to lay down a range of warheads over a decent sized target area, about the size of a football (soccer) field. The range varied but it was around 30 Km.