sentences:  The "Restigouche"s were equipped with SPS-10, SPS-12, Sperry Mk 2 and SPG-48 radar along with SQS-501 and SQS-503 sonar.The "Restigouche"s diverged from the "St. Laurent"s in their weaponry.The "Restigouche"s were equipped with two twin mounts of Vickers /70 calibre Mk 6 dual-purpose guns forward and maintained a single twin mount of 3-inch/50 calibre Mk 22 guns aft used in the preceding class.