| Lead Boat: SS-105, U.S.S. S-1 |
| Length: 219' |
| Beam: 20-3/4' |
| Draft: 16' (Surface trim) |
| Displacement: 800 - 1,180 tons (surfaced); 1,062 - 1,460 tons (submerged) |
| Speed: 14.5 knots (surfaced); 11 knots (submerged) |
| Diving Depth: 200' (test depth) |
| Range: 3,420 - 5500 miles |
| Endurance: |
| Crew: 4 officers, 34 - 39 enlisted |
| Deck Gun: 1-3"/50-calibre; 1-4"/50 calibre; or 1-5"/51 calibre |
| Anti-Aircraft Weapons: Machine guns, .30 calibre Browning or Lewis |
| Light Weaponry: |
| Torpedoes: 4-21" torpedo tubes; 12 - 16 Mark-10 torpedoes; no TDC |
| Engines: 2 diesel, direct drive |
| Motors: 2 DC motor/generators |
| Radar: SD, SJ fitted to active boats when available |
| Sonar: Hydrophones only |
| Wartime Modifications: |
