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fighting ships of the world

REGIA MARINA (ITALY)

SUBMARINES

A1 midget submarines (1915 - 1916)

A2 1918

Names

A1-6

Builders

R. Arsenale La Spezia: A1-6

Completed

1915: A1

1916: A2-6

Losses

None

Transfers

None

Discarding

9/1918: A1-6

  

Displacement standard, t

 

Displacement normal, t

31 / 37

Length, m

13.5 pp

Breadth, m

2.22

Draught, m

2.28

No of shafts

1

Machinery

electric motor

Power, h. p.

40 - 60

Max speed, kts

6.8 / 5.1

Fuel, t

battery only

Endurance, nm(kts) 12(6.6) / 8.5(4.6)

Armament

2 - 450 TC (ext cages)

Complement

4
Diving depth operational, m 50

Ship project history: These very small boats, designed by Eng Vice Admiral Edgardo Ferrati and built at La Spezia N Yd, were conceived for the defence of some Adriatic harbours, such as Venice, Ancona, Brindisi. They were transportable by railway. They were not successful, had a very low endurance and their periscope was not retractable.

Modernizations: None.

Naval service: No significant events.

A5 1916

 

Ivan Gogin, 2014