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FIGHTING SHIPS OF THE WORLD
PORTUGAL
MINE WARFARE SHIPS
SÃO ROQUE minesweepers (1956-1957)


Photo



Ribeira Grande 1979

Ships


Name No Yard No Builder Laid down Launched Comp Fate
São Roque M401   CUF, Lisboa 9/1954   6/1956 discarded 1992
Ribeira Grande M402   CUF, Lisboa 9/1954   2/1957 auxiliary 1992
Lagoa M403   CUF, Lisboa 9/1954   8/1956 discarded 1992
Rosário M404   CUF, Lisboa 9/1954   2/1956 discarded 1992


Technical data


Displacement standard, t

394

Displacement full, t

452

Length, m

42.7 pp 46.3 oa

Breadth, m

8.50

Draught, m

2.50 max

No of shafts

2

Machinery

2 Mirrlees JVSS-12 diesels

Power, h. p.

2500

Max speed, kts

15

Fuel, t

diesel oil 45

Endurance, nm(kts)2400(12)
Armament

1 x 1 - 40/60 Mk 7, 1 x 2 - 20/70 Mk 9, LL mechanical/magnetic/acoustic minesweeping gear

Electronic equipment

type 978 radar

Complement

29



Standard scale images


<i>Ribeira Grande </i>1970
Ribeira Grande 1970


Graphics


<i>Ribeira Grande </i>1979
Ribeira Grande 1979


Project history

RN 'Ton' class, M401 and M403 built under MDAP and M402 and M404 were paid for by Portugal.

Modernizations

1972, all as patrol craft: - 1 x 1 - 40/60, minesweeping gear

Naval service

No significant events.