Laid down at the Arsenal do Alfeite in February 1970, launched in 1972 and commissioned on 14 July 1972. Displacement 900 tons and as dimensions 56 x 10 x 3,8 metres, Fitted out with 2 diesel engines and 2.400 hp allowing a speed of 14,5 knots and with a speed of 12,5 knots a range of 3.000 nautical miles. Ger crew consist of 3-4officers, 8-9 petty officers and 27-28 sailors, totally 40 persons. Anti-pollution vessel annex buoy layer. In 1997 fitted out with a decompression chamber for divers. Homeport Lisbon. Call sign CTED and MMSI 263132000.
