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BRAZILIAN NAVY (BRAZIL)

SUBMARINES

HUMAYTÁ submarine

Humaytá 1930

Name No Builder Laid down Launched Comp Fate
Humaytá   OTO, Livorno, Italy 11/1925 11/6/1927 7/1929 stricken 11/1950

 

Displacement standard, t

 

Displacement normal, t

1450 / 1884

Length, m

86.7

Breadth, m

7.77

Draught, m

4.26

No of shafts

2

Machinery

Ansaldo diesels / electric motors

Power, h. p.

4000 / 1000

Max speed, kts

18.5 / 10

Fuel, t

diesel oil
Endurance, nm(kts) 12840(10)/ 120(4)

Armament

1 x 1 - 120/41 Ansaldo, 2 x 1 - 13.2/76, 6 - 533 TT (4 bow, 2 stern, 12), 16 mines

Complement

61

Diving depth operational, m 100

Ship project history: Submarine cruiser, ordered in 1925 on the means obtained from sale of battleship Deodoro to Mexico. Improved variant of Italian Balilla class. Twin-hulled. For endurance increase two 425hp Fiat auxiliary diesels-generators were installed for battery recharging. Submarine was arranged by folding bow diving planes. Besides torpedoes, Humaytá carried 16 Ansaldo mines, placing in two horizontal tubes at aft end. 120mm/41 gun originally took place in rotating turret in front of a fin, but soon after commission was rearranged to deck. Building of Humaytá has been ended in the late 1927, but submarine was remained on wharf on one and a half year because of a protraction of ultimate payment by Brazilian party.

Modernizations: None.

Naval service: No significant events.

Humaytá 1929

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Ivan Gogin, 2011