1. United States
  2. Submarine
  3. SSN 21 Seawolf

Basic Information

Category Submarine Type SSN - Nuclear Powered Attack Submarine
Year Commissioned 1996 Year Decommissioned 0
Nationality United States Hypothetical No
Beam 12.2 m Draft 10.7 m
Height 0 m Length 107.6 m
Crew 140 people Damage Points (DP) 43
Standard Displacement 7800 tons Full Displacement 8290 tons
Empty Displacement 0 tons

Sensor Parameters

Model Purpose Range Scan Interval Generation
Type 8L Optical Periscope Visual, Surveillance Periscope 0.00 - 22.50 nm 10 sec Visual
AN/BPS-16 Radar, Surface Search, Medium-Range 0.10 - 90.00 nm 5 sec Early 1990s
AN/BLD-1 HF/DF w/ OTH Targeting 0.00 - 500.00 nm 20 sec Early 1980s
AN/WLQ-4(V)1 Silent Knight SIGINT (ELINT & COMINT) w/ OTH Targeting 0.00 - 500.00 nm 20 sec Early 1990s
AN/WLR-9B Acoustic Intercept & Torpedo Warning 0.00 - 15.00 nm 5 sec Early 1980s
AN/BQS-24 MIDAS Hull Sonar, Active-Only Under-Ice Navigation and Mine & Obstacle Avoidance 0.00 - 0.60 nm 15 sec Early 1990s
AN/BQG-5A WAA [BSY-2] Hull Sonar, Passive-Only Ranging Flank Array Search & Track 0.00 - 70.00 nm 15 sec Late 1990s
AN/BQQ-5E(V)1 [BQS-13] Hull Sonar, Active/Passive Search & Track 0.00 - 40.00 nm 15 sec Late 1990s
AN/TB-16D TASS, Passive-Only Fat Line Towed Array Sonar System 0.00 - 70.00 nm 15 sec Early 1980s
AN/TB-29 TASS, Passive-Only Thin Line Towed Array Sonar System 0.00 - 100.00 nm 15 sec Late 1990s
Type 18 Periscope Sensor Group
Group Components
# Component Type Purpose Range Scan Interval Generation
1 Type 18 Periscope Optical Component Visual Visual, Surveillance Periscope 0.00 - 22.50 nm 10 sec Visual
2 Generic Submarine Periscope, LLTV Visual LLTV, Surveillance & Navigation Camera 0.00 - 22.50 nm 10 sec LLTV, 2nd Generation (1980s/1990s)

Submarine Capabilities Code

Shrouded Propulsor Shock Resistant

Signatures

Type Front Side Rear
Passive Sonar, VLF (0-1000 Hz, 200 Hz Center Frequency) 95 dB 96 dB 97 dB
Passive Sonar, LF (1-5 KHz, 3 KHz Center Frequency) 65.5 dB 66 dB 67 dB
Passive Sonar, MF (5-10 KHz, 7.5 KHz Center Frequency) 57.5 dB 58 dB 59 dB
Passive Sonar, HF (10-500 KHz, 20 KHz Center Frequency) 49 dB 50 dB 51 dB
Active Sonar, VLF-HF (0-500 KHz) 30 dB 200 dB 30 dB
Visual Detection Range 2.71 nm 4.52 nm 2.71 nm
Visual Classification Range 0.68 nm 1.13 nm 0.68 nm
Infrared Detection Range 2.71 nm 4.52 nm 2.71 nm
Infrared Classification Range 0.68 nm 1.13 nm 0.68 nm
Radar, A-D Band (30-2000 MHz) 36 dBsm (3981.07 m²) 40.8 dBsm (12022.64 m²) 36 dBsm (3981.07 m²)
Radar, E-M Band (2-100 GHz) 36 dBsm (3981.07 m²) 40.8 dBsm (12022.64 m²) 36 dBsm (3981.07 m²)

Default Configuration

Model Capacity Fire Interval Comments
660mm Mk69 TT 1 5 sec 1996, Seawolf
CSA Mk3 Mod 0 8 1 sec 1996, ADC Mk2 Mod 1, 8x Tubes

Magazine Systems

Magazine Name Capacity Comments
Seawolf 50 1996
CSA Mk3 Signal Ejector 20 1996, ADC Mk2 Mod 1

Datalink

ID Type Model Range Channels
7001 Radio ELF Radio [Secure] 100 nm 0
7001 Radio ELF Radio [Unsecure] 100 nm 0
7001 Radio VLF Radio [Secure] 100 nm 0
7001 Radio VLF Radio [Unsecure] 100 nm 0
7001 Radio LF Radio [Secure] 100 nm 10
7001 Radio LF Radio [Unsecure] 100 nm 10
7001 Radio HF Radio [Secure] 300 nm 10
7001 Radio HF Radio [Unsecure] 300 nm 10
7001 Radio VHF Radio [Secure] 100 nm 0
7001 Radio VHF Radio [Unsecure] 100 nm 0
7001 Radio UHF Radio [Secure] 100 nm 0
7001 Radio UHF Radio [Unsecure] 100 nm 0
2003 MILSTAR SATCOM MILSTAR SATCOM 0 nm 0
8002 Two-Way Wire Guidance Torpedo Wire Control [8 Wires] 30 nm 8
10062 TacTom Weapon Link Tomahawk Command Datalink 1600 nm 160

Engines

Model Type Combined Type Engine Count Shafts Primary Engines Secondary Engines Hypothetical Comments
1x S6W Nuclear Reactor Nuclear N/A 1 1 1 - No -