BNS TistaBNS Tista was a Kraljevica-class patrol boat that served with the Bangladesh Navy for nearly half a century.CareerBNS Tista was built as PBR 505, a Type 501 Kraljevica-class patrol boat for the Yugoslav Navy in 1956. The ship along with her sister ship BNS Karnafuli were acquired from the former Yugoslavia in 1975 and commissioned on 6 June 1975. The ships underwent upgrades from 1995 to 1998. After serving the Bangladesh Navy for around 47 years, BNS Tista was decommissioned from service on 9 November 2022.ArmamentThe ship was armed with two Bofors 40 mm L/70 guns and four 20 mm cannon. She also carried two 128 mm rocket launchers and two racks for Mk 6 Projectors for anti-submarine warfare operations. She was mainly used as an ASW ship.