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Text File  |  2001-04-24  |  1KB  |  33 lines
  1. MAIN PARTICULARS    Porpoise Class
  2.  
  3. Length overall              289 ft
  4. Beam                          29 ft 10 1/4 in
  5. Depth, pressure hull     16ft 9 in
  6. Displacement,
  7.   surface                    1768 tons
  8.   submerged               2053 tons
  9. Diving Depth              300 ft
  10. No. of Shafts             2
  11. Propellers                  Details unknown
  12. Speed, surface:
  13.   design                     15 knots
  14.   service                    16 knots
  15. Speed, submerged:
  16.   design                      8.75 knots
  17.   service                    8.9 knots
  18. Endurance, surface:
  19.   design                      12 800 miles (maximum) 
  20.   service                     3860 miles (full power)
  21.                                  11 500 miles at 8 knots
  22. Endurance, submerged:
  23.   design                      64 miles at 4 knots
  24.   service                     8 miles at 9 knots
  25.                                  66 miles at 6 knots
  26. Armament                   6 21-inch bow tubes
  27.                                 (12 torpedoes carried)
  28.                                  1 4-inch gun
  29.                                  50 Mk XVI mines
  30. Complement
  31.   design                59
  32.  
  33.