1961 to 1990 - ZEEHOND (S809) - Dolfijn Class Submarine - 1140 tons, 1848 dived - 79.5 x 7.8 - 1961 Rotterdam Drydock Co. - 8TT - 14.5 knots, 17 dived - 1990 reduced to test hulk - seen here on the River Thames, 09/89.