TB-56: The TB-56 was a TB-50 Class 2nd Class Torpedo Boat planned in 1878-9 possibly at Yokosuka NYd, Japan. The vessel was 52 Grt, 34 meters in length, 3.5 meters in beam, and 0.9 meters in draught. Steam powered by a single boiler which provided 650 hp output to a single shaft for a maximum speed of 20 knots. Armament was a single 42mm gun and two 36-cm torpedo tubes. Crew compliment was 16 men. TB-50 Class 2nd class torpedo boats The TB-46 foundered on 17 May 1906 off of Damietta (Dumyat) while in tow by the HMS Arrogant. References: http://www.battleships-cruisers.co.uk/torpedo_boats.htm http://homepage2.nifty.com/nishidah/e/stc0642.htm