
Viper 1907
| No | Name | Yard No | Builder | Laid down | Launched | Comm | Fate | 
| SS10 | Viper, 11.1911- B1 | 129 | Fore River, Quincy | 9/1905 | 30.3.1907 | 
    
     10.1907  | 
    stricken 12.1921 | 
| SS11 | Cuttlefish, 11.1911- B2 | 130 | Fore River, Quincy | 8/1905 | 1.9.1906 | 10.1907 | stricken 12.1919 | 
| SS12 | Tarantula, 11.1911- B3 | 131 | Fore River, Quincy | 9/1905 | 30.3.1907 | 12.1907 | stricken 7.1921 | 
| 
    
     Displacement standard, t  | 
    
    
     
  | 
  
| 
    
	 Displacement normal, t  | 
    
    
     145 / 173  | 
  
| 
    
	 Length, m  | 
    
    
     25.1  | 
  
| 
    
	 Breadth, m  | 
    
    
     3.80  | 
  
| 
    
	 Draught, m  | 
    
    
     3.20  | 
  
| 
    
	 No of shafts  | 
    
    
     1  | 
  
| 
    
	 Machinery  | 
    
    
     1 Craig petrol engine / 1 electric motor  | 
  
| 
    
	 Power, h. p.  | 
    
    
     250 / 150  | 
  
| 
    
	 Max speed, kts  | 
    
    
     9 / 8  | 
  
| 
    
	 Fuel, t  | 
    
    
     petrol 5.5  | 
  
| Endurance, nm(kts) | 540 (9) / 12 (4) | 
| 
    
     Armament  | 
    
    
     2 - 450 TT (bow, 4)  | 
  
| 
    
	 Complement  | 
    
    
     10  | 
  
| 
    
	 Diving depth operational, m  | 
    45 | 
Project history: Electric Boat design, purchased under Act of April 1904 an commissioned in 1907.
Modernizations: None.
Naval service: All were transferred to the Philippines in 1912 aboard the colliers Ajax and Hector, spending their remaining service time there.
      
Cuttlefish
© Ivan Gogin, 2014