PLT-3 contact mine

This was a moored, small contact mine fired by four galvanic horns. Laying depth  was 470 ft (143 m) maximum, case depth, 8-30 ft (0.3-9 m). Minimum spacing between mines was 262 ft (80 m).

No longer in service.

 WEIGHTS
   Total                   2,220 lb (1,006 kg)
   Warhead                   220 lb (100 kg)

 DIMENSIONS
    Length                 7 ft 10 in (2.3 m)
    Diameter               1 ft  9 in (0.5 m)

 PERFORMANCE
   Minimum depth            30 ft (  9 m)
  ...