NAVYPEDIA

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Constituição 1978

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Niterói	F40		Thornycroft, Woolston, UK	8.6.1972	8.2.1974	20.11.1976	in service (2019)
Defensora	F41		Thornycroft, Woolston, UK	14.12.1972	27.3.1975	5.3.1977	in service (2019)
Constituição	F42		Thornycroft, Woolston, UK	13.3.1974	15.4.1976	31.3.1978	in service (2019)
Liberal	F43		Thornycroft, Woolston, UK	2.5.1975	7.2.1977	18.11.1978	in service (2019)
Independência	F44		Arsenal de Marinha do Rio de Janeiro	11.6.1972	2.9.1974	3.9.1979	in service (2019)
União	F45		Arsenal de Marinha do Rio de Janeiro	11.6.1972	14.3.1975	12.9.1980	in service (2019)

Technical data

Displacement standard, t	3250
Displacement full, t	3800
Length, m	121.9 pp 129.2 oa
Breadth, m	13.5
Draught, m	4.20 hull 5.94 sonar
No of shafts	2
Machinery	CODOG: 2 Rolls-Royce Olympus TM3B gas turbines / 4 MTU 16V956 TB91 diesels
Power, h. p.	56000 / 15760
Max speed, kts	30 / 22
Fuel, t	diesel / gas turbine oil 480
Endurance, nm(kts)	5300(17)
Armament	F40, 41, 44, 45: 2 x 3 SeaCat GWS22 SAM (60 SeaCat), 1 x 1 Branik ASuM (10 Ikara), 1 x 1 - 114/55 Mk 8, 2 x 1 - 40/70 Bofors 564, 2 x 3 - 324 STWS1 TT, 1 x 2 - 375 Bofors SR-375A ASWRL, 1 DCR (5), 1 helicopteer (AH-11 Lynx) F42, 43: 2 x 2 MM38 Exocet SSM (4 MM38), 2 x 3 SeaCat GWS22 SAM (60 SeaCat), 2 x 1 - 114/55 Mk 8, 2 x 1 - 40/70 Bofors 564, 2 x 3 - 324 STWS1 TT, 1 x 2 - 375 Bofors SR-375A ASWRL, 1 DCR (5), 1 helicopteer (AH-11 Lynx)
Electronic equipment	F40, 41, 44, 45: AWS-2, ZW-06, 2x RTN-10X, Ikara tracker radars, EDO610E, EDO700E sonars, RDL-2/3 ECM suite, 2x Shield decoy RL, CAAIS CCS F42, 43: AWS-2, ZW-06, 2x RTN-10X radars, EDO610E sonar, RDL-2/3 ECM suite, 2x Shield decoy RL, CAAIS CCS
Complement	201

Standard scale images

Graphics

Project history

Designed by Vosper Thornycroft and designated Mk 10, this handsome class is unique to the Brazilian Navy. The contract between Vosper Thornycroft Ltd. Portsmouth, and the Brazilian government was announced on 29 September 1970. Under the terms, four ships were to be built in Great Britain and two in Brazil, with materials, equipment, and leadyard services supplied by Vosper Thornycroft. These ships are comparable in size and complexity to the British Type 42, yet the Mk 10 requires a complement of 100 less men. Those ships built in Brazil required much more time to complete.

They were divided into two subtypes, for ASW and general purpose duties, the latter exchanging Ikara system (called Branik in Brazil) and VDS for SSMs and an extra gun.

Modernizations

early 1990s, Niterói, Defensora, Independência, União: + 2 x 2 MM40 Exocet SSM (4 MM40)

2001, Liberal; 2006, Constituição: - 2 x 2 MM38 Exocet SSM, 2 x 3 SeaCat GWS22 SAM, 1 x 1 - 114/55, 2 x 1 - 40/70, 2 x 3 - 324 TT, AWS-2, ZW-06, 2x RTN-10X radars, EDO610E sonar, RDL-2/3 ECM suite, 2x Shield decoy RL, CAAIS CCS; + 2 x 2 MM40 Exocet SSM (4 MM40), 1 x 8 Albatros SAM (8 Aspide), 2 x 1 - 40/70 Bofors Trinity Mk 3, 2 x 3 - 324 Mk 32 TT (Mk 46 Mod.5), RAN-20S, Terma-Scanter 4100, Furuno FR-1942, 2x RTN-30X radars, EOS-400-10B e/o system, EDO997F, EDO700E sonars, Cutlass, SLQ-2 ECM suites, 4x IPqM decoy RL, Siconta-2 CCS

2005, Niterói, Defensora, Independência, União: - 2 x 3 SeaCat GWS22 SAM, 1 x 1 Branik ASuM, 2 x 1 - 40/70, 2 x 3 - 324 TT, AWS-2, ZW-06, 2x RTN-10X, Ikara tracker radars, EDO610E sonar, RDL-2/3 ECM suite, 2x Shield decoy RL, CAAIS CCS; + 1 x 8 Albatros SAM (8 Aspide), 2 x 1 - 40/70 Bofors Trinity Mk 3, 2 x 3 - 324 Mk 32 TT (Mk 46 Mod.5), RAN-20S, Terma-Scanter 4100, Furuno FR-1942, 2x RTN-30X radars, EOS-400-10B e/o system, EDO997F sonar, Cutlass, SLQ-2 ECM suites, 4x IPqM decoy RL, Siconta CCS

Naval service

No significant events.