USS WINSTON S. CHURCHILL DDG-81 alongside at HMNB Clyde.
CLASS OVERVIEW - ARLEIGH BURKE CLASS
Name: USS WINSTON S. CHURCHILL DDG-81
Builders: Bath Iron Works
Operators:  United States Navy
Preceded by: Kidd class
Succeeded by: Zumwalt class
Cost: US$1.843 billion (DDG 114–116, FY2011/12)
Built: 1988–present
In commission: 1991–present
Building: 8
Planned: 76
Completed: 66
Active: 64 (2 Under Repair)
General characteristics
Type: Guided missile destroyer
Displacement: Fully loaded:
Flight I: 8,315t (8,184 long tons; 9,166 short tons)
Flight II: 8,400t (8,300 long tons; 9,300 short tons)
Flight IIA: 9,200t (9,100 long tons; 10,100 short tons)
Flight III: 9,800t (9,600 long tons; 10,800 short tons)
Length: Flights I and II: 505ft (154m)
Flight IIA: 509ft (155m)
Beam: 66ft (20m)
Draft: 30.5ft (9.3m)
Installed power: 3 × Allison AG9140 Generators (2,500kW each, 440V)
Propulsion: 4 × General Electric LM2500 gas turbines each generating 26,250bhp (19,570kW) coupled to two shafts, each driving a five-bladed reversible controllable-pitch propeller Total output: 105,000bhp (78,000kW)
Speed: In excess of 30kn (56km/h; 35mph)
Range: 4,400 nmi (8,100km) at 20kn (37km/h; 23mph)
Boats & landing craft carried: 2 × rigid hull inflatable boats
Complement: Flight I: 303 total
Flight IIA: 23 officers, 300 enlisted
Crew: 276
Sensors and processing systems:
AN/SPY-1D 3D radar
AN/SPS-67(V)2 surface-search radar
AN/SPS-73(V)12 surface-search radar
AN/SPG-62 fire-control radar
AN/SQS-53C sonar array
AN/SQR-19 tactical towed array sonar
AN/SQQ-28 LAMPS III shipboard system
Electronic warfare and decoys:
AN/SLQ-32(V)2 Electronic Warfare System
AN/SLQ-25 Nixie Torpedo Countermeasures
MK 36 MOD 12 Decoy Launching System
AN/SLQ-39 CHAFF Buoys
Armament:
Missiles: Flight I: 90 cell Mk 41 Vertical Launching System (VLS)Flights II and IIA: 96 cell Mk 41 VLS Tomahawk cruise missile RIM-66M Standard medium range SAM (has an ASuW mode)
RIM-161 Standard Ballistic missile defense missile for Aegis BMD (15 ships as of March 2009
RIM-162 ESSM (4 per cell) SAM (DDG-79 onward)
RUM-139 Vertical Launch ASROC
RIM-174A Standard ERAM added in 2011 2 × Mk 141 Harpoon Missile Launcher SSM (not in Flight IIA units)
Guns: 1 × 5inch (127mm)/54 Mk-45 Mod 1/2 (lightweight gun) (DDG-51 to -80)
or 1 × 5-inch (127mm)/62 Mk-45 mod 4 (lightweight gun) (DDG-81 onwards)
2 × (DDG-51 to -84) or 1 × (DDG-85 onwards) 20mm Phalanx CIWS 2 × 25mm M242 Bushmaster cannons
Torpedoes: 2 × Mark 32 triple torpedo tubes (six Mk-46 or Mk-50 torpedoes, Mk-54 in the near future)
Aircraft carried: Flights I and II: None
Flight IIA onwards: up to two MH-60R Seahawk LAMPS III helicopters
Aviation facilities: Flights I and II: Flight deck only, but LAMPS III electronics installed on landing deck for coordinated DDG-51/helo ASW operations
Flight IIA onwards: Flight deck and enclosed hangars for two MH-60R LAMPS III helicopters