USS Helena (SSN-725) Facts | |
| Ship Class: | Fourth Flight 688 - Los Angles Class Fast-Attack Nuclear submarine |
| Crew: | 120 enlisted 13 Officers |
| Length: | 360 feet |
| Beam: | 33 feet |
| Draft: | 32 feet (surfaced) |
| Displacement: | 6080 tons (surfaced) 6927 tons (submerged) |
| Max. Depth: | "In excess of 800 feet" |
| Max. speed: | "In excess of 30 knots (submerged)" 20 knots (surfaced) |
| Propulsion: | 1 pressurized water nuclear reactor 2 steam turbines/ 1 shaft 30,000 shp |
| Armanent: | 4 Forward (21") Torpedo Tubes 12 VLS - Vertical Launch Missile Tubes |
| Weapons: | Mk-48 Torpedo Mk-48 ADCAP Torpedo UGM-84 Harpoon UGM-109 Tomahawk, VLS (Vertically Launched) UGM-109 Tomahawk, TTL (Torpedo Tube Launched) |
| Navigation: | GPS - Global Positioning system ESGN (Electro-statically Suspended Gyro Navigator) NAVSAT OMEGA LORAN Bottom Contour Mapping |
| Communications: | This cell "blank" |
| Builder: | General Dynamics, Electric Boat Division - Groton, CT |
| Keel Laid: | 16 SEP 1984 |
| Launched: | 28 JUN 1986 |
| Sponsor: | Mrs. Jean Cole Busey |
| Commissioned: | 11 JUL 1987, commanded by CDR Thomas Moore |
| Home Port: | San Diego, CA |
| Motto: | "Proud and Fearless" |
| International Call sign: | NHMT |
| Namesake City: | Helena, MT USA |