NAVYPEDIA

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

Graphics

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.