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FIGHTING SHIPS OF THE WORLD
PORTUGAL
SUBMARINES
DELFIM submarines


Ships


Name No Yard No Builder Laid down Launched Comp Fate
Delfim     CRDA, Monfalcone, Italy 10.1932 5.1.1935 9.1935 // --- completed for Italy (Glauco)
Espadarte     CRDA, Monfalcone, Italy 11.1932 20.3.1935 10.1935 // --- completed for Italy (Otaria)


Technical data


Displacement standard, t977
Displacement normal, t

1054 / 1305

Length, m

73.0

Breadth, m

7.20

Draught, m

5.12

No of shafts

2

Machinery

2 Fiat diesels / 2 CRDA electric motors

Power, h. p.

3000 / 1200

Max speed, kts

17 / 8

Fuel, t

diesel oil 59 (norm.)

Endurance, nm(kts)9760(8) / 110(3)
Armament

2 x 1 - 100/47 OTO 1931, 2 x 1 - 13.2/76, 8 - 533 TT (4 bow, 4 stern, 14)

Electronic equipmenthydrophone
Complement

58

Diving depth operational, m90


Standard scale images


<i>Otaria</i> 1940
Otaria 1940


Project history

This pair was ordered by Portugal in 1931 as Delfim and Espadarte, but the same year the contract was terminated. In 1932 they were re-ordered by Italian Government for own Navy. The design was developed on the basis of Squalo class. Single-hulled, with external bulges. Successful design, differed by easy manoeuvrability both in surface, and in underwater position, fast and well armed.