T-4 (Swedish motor torpedo boat, 1939-1949)
T-3 and T-4 were Vosper type MTB's. Sisters T-1 and T-2 became the British MGB-44 and MGB-45. Built from designs provided by Vosper, LTD. of England, these vessels are powered with two Issota-Franchini engines for a speed of 40 knots. They are armed with two 18-inch tubes, anti-aircraft guns and depth charges.
Naval History and Heritage Command