NAVYPEDIA

Photo

Delfim 1934

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Delfim	D		Vickers-Armstrong, Barrow, UK	3.1933	1.5.1934	1935	stricken 1950
Espadarte	E		Vickers-Armstrong, Barrow, UK	3.1933	30.5.1934	1935	stricken 1950
Golfinho	G		Vickers-Armstrong, Barrow, UK	3.1933	30.5.1934	1935	stricken 1950

Technical data

Displacement standard, t
Displacement normal, t	800/1092
Length, m	69.2
Breadth, m	6.50
Draught, m	3.86
No of shafts	2
Machinery	2 Vickers diesels / 2 electric motors
Power, h. p.	2300 / 1000
Max speed, kts	16.5 / 9.2
Fuel, t	diesel oil
Endurance, nm(kts)	5000(10) / 110(4)
Armament	1 x 1 - 102/40 Vickers-Armstrong Mk M, 2 x 1 - 12.7/62, 6 - 533 TT (4 bow, 2 stern, 12)
Electronic equipment	presumably type 120 sonar
Complement	38
Diving depth operational, m

Standard scale images

Graphics

Project history

In 1930 Portuguese government ordered to CRDA (Monfalcone) four submarines: two large (1045/1305t, 17/8kts, 8 533mm TTs, 2 100mm/47 guns) and two medium (780/1000t, 14/8kts, 6 533mm TTs, 1 100mm/47 gun). Their building was started in 1931 (large submarines were named Delfim and Espadarte), however soon Portuguese government for financial reasons has broken the contract. All 4 boats were subsequently completed for Regia Marina as Glauco and Otaria (large), Argo and Velella (medium).

In exchange in 1931 the order for three medium submarines has been given out to British concern Vickers-Armstrong, building was conducted in Barrow. Portuguese boats were saddle-tank-hulled and were structurally similar to typical British submarines of inter-war period, differing by narrower hull. 102mm/40 gun was on a superstructure transferring to CT and was completely covered by a streamlined shield. All TTs had spare torpedoes.

Modernizations

None.

Naval service

No significant events.