NAVYPEDIA

Photo

Goiás 1975

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Rio Grande do Sul (ex-Grampus)	S11		Boston N Yd, Charlestown, USA	8.2.1944	15.12.1944	10.1947 // 13.5.1972	stricken 11.1978
Bahia (ex-Sea Leopard)	S12		Portsmouth N Yd, USA	7.11.1944	2.3.1945	11.6.1945 // 27.3.1973	training hulk 7.1993
Rio de Janeiro (ex-Odax)	S13		Portsmouth N Yd, USA	4.12.1944	10.4.1945	11.7.1945 // 8.7.1972	stricken 11.1978
Ceará (ex-Amberjack)	S14		Boston N Yd, Charlestown, USA	8.2.1944	15.12.1944	4.3.1946 // 17.10.1973	stricken 9.1987
Goiás (ex-Trumpetfish)	S15		Cramp, Philadelphia, USA	23.8.1943	13.5.1945	29.1.1946 // 15.10.1973	stricken 4.1990

Technical data

Data variant	S11-14	S15
Displacement standard, t	1517	1650
Displacement normal, t	1950 / 2540	1975 / 2450
Length, m	93.6	99.5
Breadth, m	8.20	8.20
Draught, m	5.20	5.20
No of shafts	2	2
Machinery	3 Fairbanks-Morse diesel-generators / 4 electric motors	3 Fairbanks-Morse diesel-generators / 4 electric motors
Power, h. p.	4610 / 5400	4610 / 5400
Max speed, kts	18 / 16 (9 with snorkel)	17.2 / 14.5
Fuel, t	diesel oil 330	diesel oil 378 - 472
Endurance, nm(kts)	10000 (10) / 96 (2)	11000 (10) / 96 (2)
Armament	10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)	10 - 533 TT (24 torpedoes or 40 mines, 6 bow, 4 stern)
Electronic equipment	SS-2A radar, BQR-2B, BQS-2, SQR-3 sonars, APR-1 ECM suite	SS-2A radar, BQR-2B, BQS-2, SQR-3, BQG-4 PUFFS sonars, BLR-1 ECM suite
Complement	86	86
Diving depth operational, m	135	120

Standard scale images

Graphics

Project history

Former USN Tench classes submarines. First four were modernized under GUPPY II programme, Goiás under GUPPY III programme.

Modernizations

None.

Naval service

No significant events.