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A1 midget submarines (1915 - 1916)


Photo



A5 1916  

Ships


Names Builders Completed Losses Transfers Discarding

A1-6

R. Arsenale La Spezia: A1-6

1915: A1

1916: A2-6

None

None

9/1918: A1-6



Technical data


Displacement standard, t 
Displacement normal, t31 / 37
Length, m

13.5 pp

Breadth, m2.22
Draught, m

2.28

No of shafts

1

Machinery

1 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)
Armament2 - 450 TC (ext cages)
Complement4
Diving depth operational, m50


Standard scale images


<i>A2 </i>1918
A2 1918


Graphics


<i>A5 </i>1916  
A5 1916  


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.