
Growler 1959
| No | Name | Yard No | Builder | Laid down | Launched | Comm | Fate | 
| SSG577 | Growler | Portsmouth N Yd, Kittery | 15.2.1955 | 5.4.1958 | 30.8.1958 | stricken 9.1980 | 
| 
    
     Displacement standard, t  | 
    2174 | 
| 
    
	 Displacement normal, t  | 
    
    
     / 3387  | 
  
| 
    
	 Length, m  | 
    
    
     96.6  | 
  
| 
    
	 Breadth, m  | 
    
    
     8.30  | 
  
| 
    
	 Draught, m  | 
    
    
     5.20  | 
  
| 
    
	 No of shafts  | 
    
    
     2  | 
  
| 
    
	 Machinery  | 
    
    
     3 Fairbank Morse diesel-generators, 2 Elliott electric motors  | 
  
| 
    
	 Power, h. p.  | 
    
    
     4600 / 5600  | 
  
| 
    
	 Max speed, kts  | 
    
    
     15 / 12  | 
  
| 
    
	 Fuel, t  | 
    
    
     diesel oil  | 
  
| Endurance, nm(kts) | |
| 
    
     Armament  | 
    
    
     2 x 1 Regulus I SSM launchers (4 SSM-N-8), 6 - 533 TT (4 Mk 54 bow, 2 Mk 55 stern)  | 
  
| 
    
	 Electronic equipment  | 
    BPS-12 radar, BQS-4, BQR-2 sonars, BLR-1 ECM suite | 
| 
    
	 Complement  | 
    
    
     84  | 
  
| 
    
	 Diving depth operational, m  | 
    210 | 
Project history: Grayback and Growler were laid down as sisters to Darter, then cut in two and lengthened by ~15m to accommodate two cylindrical hangars for Regulus missiles.
Modernizations: 1964: - 2 x 1 Regulus I SSM (4 SSM-N-8)
Naval service: Both were decommissioned in May 1964 when Regulus was retired.

Grayback (left) and Growler (right) 1964
© Ivan Gogin, 2015