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Delfinul

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Delfinul	1948- S1, 1956- S51		CNQ, Fiume, Italy	6.1927	22.6.1930	5.1936	captured by USSR 12.9.1944 (ТС-3 [TS-3]), returned 10.1945, stricken 1.1958

Technical data

Displacement standard, t
Displacement normal, t	650 / 900
Length, m	68.6
Breadth, m	5.94
Draught, m	3.66
No of shafts	2
Machinery	2 Sulzer diesels / 2 Monza electric motors
Power, h. p.	800 / 800
Max speed, kts	14 / 9
Fuel, t	diesel oil 37
Endurance, nm(kts)	2000(10) /
Armament	1 x 1 - 102/35 Schneider-Armstrong M1914-15, 6 - 533 TT (4 bow, 2 stern, 6)
Complement	40
Diving depth operational, m	80 (max)

Standard scale images

Graphics

Project history

Ordered under the 1926 programme, designed and built by CNQ in Fiume, thus builder has not fulfilled contractual requirements, and building was escorted by a lump of alterations. Submarine was practically completed to the early 1932, but not been accepted by Romanian party and within more than three years Romania had legal proceedings with CNQ, demanding collecting of spent means, however unsuccessfully. At this time submarine was offered by CNQ to acquisition to a number of countries, including the USSR. In August, 1935 Romanians have agreed to accept a boat which has begun trials in February, 1936 and arrived to Constanza 27.6.1936. The order for sister-ship was cancelled by Romanians in 1928. Rather unsuccessful double-hulled submarine with low endurance and self-sufficiency (only 15 days), low reliability of systems and machinery and weak diesels. Spare torpedoes were absent.

Modernizations

None.

Naval service

3.7.1942 Delfinul was put into repair at Galatz where she stayed till the end of war. 12.9.1944 she was captured by Soviet troops at Izlaza. 14.9.1944 submarine was enlisted by Soviet Navy as TS-3, but actually continued to be under repair: in October she was towed off to Balaklava, and year after towed again to Galatz where she was returned to Romania under former name. 12.10.1945 she was discarded by Soviet Navy. Delfinul was again commissioned by Romanians as training submarine only in 1954.