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Tupi class

Patrol submarine

Tupi class submarine

The Brazilian Tupi class submarines offer generally good capabilities

 
 
Entered service 1989
Crew 30 men
Diving depth (operational) 250 m
Dimensions and displacement
Length 61.2 m
Beam 6.2 m
Draught 5.5 m
Surfaced displacement 1 400 tons
Submerged displacement 1 550 tons
Propulsion and speed
Surfaced speed 11 knots
Submerged speed 21.5 knots
Diesel engines 4 x 2 414 hp
Electric motors 1 x 4 595 hp
Armament
Torpedoes 8 x 533- mm torpedo tubes with up to 16 torpedoes

 

   In 1984 Brazil contracted with Howaldtswerke-Deutsche Werft for six Tupi class submarines to the Type 1400 subvariant of the U-209 model, the first built in Kiel and the other five in Rio de Janeiro. Financial constraints trimmed the Brazilian-built quantity to three, while the pair of Tikuna-class boats, to an improved Tupi class standard, were far behind schedule: the Tikuna's commissioning date was delayed from 2000 to 2005 and work on the Tapuia has been suspended.

   Brazil established an uranium-enrichment plant in 1988 with the announced intention of building an SSN, but this project has not proceeded beyond the design stage. The Tikuna-class boats were described as intermediate between the older SSKs and an SSN.

   The Tupi class boats operate from Moncangue island's Base Almirante Castro e Silva across the bay from Rio. These are well armed small boats, carrying a combination of British Mk 24 Tigerfish torpedoes and an anti-submarine torpedo developed by the IPqM (Instituto de Pesquisas da Marinha, or naval research institute). Eight torpedoes are carried in the tubes and there are eight reloads. The Tigerfish is a wire-guided torpedo capable of active homing at 35 kts to a range of 13 km (8 miles) or passive homing at 24 kts to 29.6 km (18.4 miles) The IPqM torpedo has a swimout launch system and travels up to 18.5 km (11.5 miles) at 45 kts.

   The Tikuna-class boats are larger, at 2 425 tons dived, and have a crew of 39. Designed for an endurance of 60 days, they are designed to carry MCF-01/100 acoustic-magnetic mines (produced by IPqM) instead of some torpedoes.

 

Name Laid down Launched Commissioned Status
Tupi (S30) 1985 1987 1989

active, in service

Tamoio (S31) 1986 1993 1994

active, in service

Timbira (S32) 1987 1996 1996

active, in service

Tapajo (S33) 1996 1998 1999

active, in service

 

 
Tupi class submarine

Tupi class submarine

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