| Lead Boat: SS-198, U.S.S. Tambor |
| Length: 307' 2" |
| Beam: 27' 3" |
| Draft: 15' (Surface trim) |
| Displacement: 1,475 tons (surfaced); 2,370 tons (submerged) |
| Speed: 20 knots (surfaced); 9 knots (submerged) |
| Diving Depth: 250' (test depth) |
| Range: 11,000 miles |
| Endurance: |
| Crew: 6 officers, 54 enlisted |
| Deck Gun: 1-3"/50-calibre |
| Anti-Aircraft Weapons: |
| Light Weaponry: |
| Torpedoes: 6-21" torpedo tubes (bow), 4-21" torpedo tubes (stern); 24 torpedoes |
| Engines: 4-1,600 hp main engines, 1-300 kw, 1-100 kw auxiliaries |
| Motors: 4-685 hp |
| Radar: |
| Sonar: |
| Wartime Modifications: |
