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FIGHTING SHIPS OF THE WORLD
UNITED STATES OF AMERICA
SUBMARINES
"E" submarines (SKIPJACK (E1)) (1912)


Ships


No Name Yard No Builder Laid down Launched Comm Fate
SS24 E1 (ex-Skipjack) 179 Fore River, Quincy 12/1909 27.5.1911 2.1912 stricken 10.1921
SS25 E2 (ex-Sturgeon) 180 Fore River, Quincy 12/1909 15.6.1911 2.1912 stricken 10.1921


Technical data


Displacement standard, t

 

Displacement normal, t

287 / 342

Length, m

41.2

Breadth, m

4.40

Draught, m

3.60

No of shafts

2

Machinery

2 NLSE diesels / 2 electric motors

Power, h. p.

700 / 600

Max speed, kts

13.5 / 11.5

Fuel, t

diesel oil 25

Endurance, nm(kts)2100 (11) / 100 (5)
Armament

4 - 450 TT (bow, 4)

Complement

20

Diving depth operational, m60


Standard scale images


<i>E1</i> 1912
E1 1912


Project history

In these submarines the growth in size was reversed; the Submarine Flotilla considered them a 'reversion of type without justification'. They were the first US submarines with diesel engines, which gave considerable trouble; they had to be re-engined in 1915. They also were the first in USN with bow planes, and first USN submarines with radios. This class showed a typical pre-1917 American concentration on high underwater speed, which continued through the 'S' class of World War One.

Modernizations

None.

Naval service

No significant events.