NAVYPEDIA

Photo

Almirante Simpson 1930

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Capitán O'Brien	O		Vickers-Armstrong, Barrow, UK	1928	2.10.1928	6.1929	discarded 1957
Almirante Simpson	S		Vickers-Armstrong, Barrow, UK	1928	15.1.1929	9.1929	discarded 1957
Capitán Thomson	T		Vickers-Armstrong, Barrow, UK	1928	15.1.1929	8.1929	discarded 4.1958

Technical data

Displacement standard, t	1412
Displacement normal, t	1540 / 2020
Length, m	79.3
Breadth, m	8.53
Draught, m	4.15
No of shafts	2
Machinery	2 diesels / 2 electric motors
Power, h. p.	2750 / 1300
Max speed, kts	15 / 9
Fuel, t	diesel oil 200
Endurance, nm(kts)	8400(10) / 70(4)
Armament	1 x 1 - 120/45 Vickers-Armstrong E, 1 x 1 - 7.7/87, 8 - 533 TT (6 bow, 2 stern, 16)
Electronic equipment	presumably type 118 sonar
Complement	54
Diving depth operational, m	95

Standard scale images

Graphics

Project history

Submarines were designed under Chilean order on the basis of first post-war British submarines of O class. Saddle-tank hull. Boats differed in the big sizes of fin structure on which 120mm/45 Vickers-Armstrong Mk E gun was installed in rotated semi-turret. Using of this gun on Chilean submarines was unique: similar guns have not found service on British submarines because of separate loading. All three submarines arrived to Valparaiso 5.3.1930.

Modernizations

None.

Naval service

Capitán O'Brien after write-off foundered at Talcahuano in 1959 and was salvaged and broken up only in 1988.