| Lead Boat: SS-169, U.S.S. Dolphin (Only boat in class) |
| Length: 319' 3" |
| Beam: 27' 11" |
| Draft: 13' (Surface trim) |
| Displacement: 1,718 tons (surfaced); 2,240 tons (submerged) |
| Speed: 17 knots (surfaced); 8 knots (submerged) |
| Diving Depth: 300' (test depth) |
| Range:18,780 miles |
| Endurance: |
| Crew: 7 officers, 3 CPO, 53 enlisted |
| Deck Gun: 1-4"/50-calibre |
| Anti-Aircraft Weapons: |
| Light Weaponry: |
| Torpedoes: 4-21" torpedo tubes (bow), 2-21" torpedo tubes (stern), 18 torpedoes |
| Engines: 2-1,750 hp main, 2-450 hp diesel generator |
| Motors: 2-875 hp |
| Radar: |
| Sonar: |
| Wartime Modifications: |
