1. United States
  2. Ship
  3. DDG 31 Decatur [Mod Forrest Sherman]

Basic Information

Category Surface Combatant Type DD - Destroyer
Year Commissioned 1975 Year Decommissioned 1982
Nationality United States Hypothetical No
Beam 13.8 m Draft 6.7 m
Height 0 m Length 127.5 m
Crew 292 people Damage Points (DP) 530
Standard Displacement 2800 tons Full Displacement 4000 tons
Empty Displacement 0 tons

Sensor Parameters

Model Purpose Range Scan Interval Generation
AN/WLR-1 ELINT 0.00 - 500.00 nm 20 sec Early 1970s
AN/WLR-3 RWR, Radar Warning Receiver 0.00 - 120.00 nm 5 sec Late 1960s
AN/SPG-53C CWI [Mk68 GFCS] None 0.00 - 0.00 nm 0 sec None
AN/SQS-23A Hull Sonar, Active/Passive Search & Attack 0.00 - 20.00 nm 15 sec Early 1960s
AN/SPG-51 [Mk74 FCS] Radar, FCR, Surface-to-Air, Medium-Range 0.20 - 100.00 nm 1 sec Late 1960s
AN/SPS-52 Radar, Air Search, 3D Long-Range 0.20 - 240.00 nm 8 sec Late 1970s
AN/SPS-10B Radar, Surface Search & Navigation 0.20 - 40.00 nm 4 sec Late 1950s
AN/SPS-40 Radar, Air Search, 2D Long-Range 5.00 - 220.00 nm 4 sec Early 1960s
AN/ULQ-6B OECM & DECM, Offensive & Defensive ECM 0.00 - 0.00 nm 0 sec Early 1970s
AN/ULQ-6B OECM & DECM, Offensive & Defensive ECM 0.00 - 0.00 nm 0 sec Early 1970s
AN/ULQ-6A OECM & DECM, Offensive & Defensive ECM 0.00 - 0.00 nm 0 sec Early 1960s
AN/ULQ-6A OECM & DECM, Offensive & Defensive ECM 0.00 - 0.00 nm 0 sec Early 1960s

Ship Capabilities Code

|   Nuclear Shock Resistant   |   Degaussed Steel Hull   |   Refuel from Port x 2 (In)   |   Refuel from Starboard x 2 (In)   |   Replenish from Port x 1 (In)   |   Replenish from Starboard x 1 (In)   |  

Signatures

Type Front Side Rear
Passive Sonar, VLF (0-1000 Hz, 200 Hz Center Frequency) 125 dB 126 dB 127 dB
Passive Sonar, LF (1-5 KHz, 3 KHz Center Frequency) 95.5 dB 96 dB 97 dB
Passive Sonar, MF (5-10 KHz, 7.5 KHz Center Frequency) 87.5 dB 88 dB 89 dB
Passive Sonar, HF (10-500 KHz, 20 KHz Center Frequency) 79 dB 80 dB 81 dB
Active Sonar, VLF-HF (0-500 KHz) 35 dB 200 dB 35 dB
Visual Detection Range 7.98 nm 13.56 nm 7.98 nm
Visual Classification Range 3.21 nm 5.71 nm 3.21 nm
Infrared Detection Range 8.4 nm 14.27 nm 8.4 nm
Infrared Classification Range 3.57 nm 6.34 nm 3.57 nm
Radar, A-D Band (30-2000 MHz) 26.6 dBsm (457.09 m²) 30.1 dBsm (1023.29 m²) 26.6 dBsm (457.09 m²)
Radar, E-M Band (2-100 GHz) 26.6 dBsm (457.09 m²) 30.1 dBsm (1023.29 m²) 26.6 dBsm (457.09 m²)

Default Configuration

Model Capacity Fire Interval Comments
T Mk 6 Fanfare 2 1 sec -
127mm/54 Mk42 Mod 2 40 3 sec USN
12.7mm/50 MG 10 1 sec Facility/Ship, No Anti-Air Capability
Mk13 Mod 1 Single Rail 1 1 sec USN, Tartar
324mm Mk32 TT Triple 3 5 sec USN, 1972

Magazine Systems

Magazine Name Capacity Comments
Torpedo Magazine [External Tubes] 12 USN, 1972
12.7mm/50 MG 400 4x Mounts
Helicopter Magazine 10000 Generic, Empty

Datalink

Type Model Range Channels
Radio HF Radio [Secure] 300 nm 10
Radio VHF Radio [Unsecure] 100 nm 0
Radio UHF Radio [Unsecure] 100 nm 0
Radio VHF Radio [Secure] 100 nm 0
Radio HF Radio [Unsecure] 300 nm 10
Radio UHF Radio [Secure] 100 nm 0

Engines

Model Type Combined Type Engine Count Shafts Primary Engines Secondary Engines Hypothetical Comments
4x Foster-Wheeler Boilers, 2x General Electric Steam Turbines Steam N/A 2 2 2 - No -

Aircraft Facilities

|   Pad (x1)   |   Open Parking (x1)   |