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FOCA small submarine (1909)


Photo



Foca  

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Foca     FIAT-San Giorgio, La Spezia 4/1907 8.9.1908 2/1909 discarded 9.1918


Technical data


Displacement standard, t 
Displacement normal, t

185 / 280

Length, m

42.5

Breadth, m

4.20

Draught, m

2.60

No of shafts

3

Machinery

3 FIAT petrol engines / 2 electric motors

Power, h. p.

800 / 160

Max speed, kts

16 / 6

Fuel, t

petrol

Endurance, nm(kts)350(10) / 45(4)
Armament

2 - 450 TT (bow, 4)

Complement

17

Diving depth operational, m35


Standard scale images


<i>Foca </i>1909
Foca 1909


Graphics


<i>Foca</i>  
Foca  


Project history

Designed by Fiat-San Giorgio Yards, the Foca was a development of the Glauco class and was the only Italian submarine provided with 3 shafts and 3 propellers, operated by three sets of Fiat petrol motors for a total of 800bhp. On 26 April 1909 an internal petrol explosion set fire to her fuel, in Naples harbour so it was necessary to sink the boat. Refloated and towed to La Spezia, she was repaired, and the central motor with its shaft and propeller were removed. After this accident, the Italian Navy gave up building petrol-powered submarines.

Modernizations

(1909-1910): central shaft was removed; 600 / 160hp, 12 / 6kts.

Naval service

No significant events.