Peralta Alpha Trials

The future USS Rafael Peralta (DDG-115) successfully completed alpha trials October 18, after spending two days underway off the coast of Maine. The trials were conducted by shipbuilder, General Dynamics’ Bath Iron Works (BIW).

The future USS Rafael Peralta (DDG-115) sets sail for the first time to conduct initial at-sea builder's trials off the coast of Maine (Photo by General Dynamics, Bath Iron Works)
The future USS Rafael Peralta (DDG-115) sets sail for the first time to conduct initial at-sea builder’s trials off the coast of Maine (Photo by General Dynamics, Bath Iron Works)

Alpha trials, the initial set of builder’s trials, is the first of three underway periods that the ship will conduct to test and demonstrate that ship systems are properly installed and operational. Rafael Peralta successfully conducted a series of test events to demonstrate the operational capability of key communication, damage control, navigation and propulsion systems.

«Rafael Peralta is the first Arleigh Burke destroyer that BIW has taken to sea since the program was restarted in 2010», said Captain Casey Moton, DDG-51 class program manager, Program Executive Office (PEO) Ships. «The ship performed tremendously well, and that’s a testament to the hard work and commitment of our Navy team and industry partners».

Rafael Peralta is equipped with the Aegis Baseline 9 Combat System which includes an Integrated Air and Missile Defense (IAMD) capability incorporating Ballistic Missile Defense 5.0 Capability Upgrade and Naval Integrated Fire Control-Counter Air. The ship’s IAMD radar will provide increased computing power and radar upgrades that improve detection and reaction capabilities against modern air warfare threats. The Aegis Combat System will enable the ship to link radars with other ships and aircraft to provide a composite picture of the battle space and effectively increase the theater space.

USS Rafael Peralta (DDG-115) is the 65th Arleigh Burke (DDG-51) class destroyer and the first of the DDG-51 Flight IIA restart ships to be built at BIW. The shipyard is currently in production on future destroyers USS Thomas Hudner (DDG-116), USS Daniel Inouye (DDG-118) and USS Carl M. Levin (DDG-120) and under contract for three additional ships awarded as part of the five-ship multi-year procurement for fiscal years 2013-2017.

As one of the Defense Department’s largest acquisition organizations, PEO Ships is responsible for executing the development and procurement of all destroyers, amphibious ships, special mission and support ships, and boats and craft.

 

Ship Characteristics

Length Overall 510 feet/156 m
Beam – Waterline 59 feet/18 m
Draft 30.5 feet/9.3 m
Displacement – Full Load 9,217 tons/9,363 metric tons
Power Plant 4 General electric LM 2500-30 gas turbines; 2 shafts; 2 CRP (Contra-Rotating) propellers; 100,000 shaft horsepower/75,000 kW
Speed in excess of 30 knots/34.5 mph/55.5 km/h
Range 4,400 NM/8,149 km at 20 knots/23 mph/37 km/h
Crew 380 total: 32 Officers, 27 CPO (Chief Petty Officer), 321 OEM
Surveillance SPY-1D Phased Array Radar and Aegis Combat System (Lockheed Martin); SPS-73(V) Navigation; SPS-67(V)3 Surface Search; 3 SPG-62 Illuminator; SQQ-89(V)6 sonar incorporating SQS-53C hull mounted and SQR-19 towed array sonars used with Mark-116 Mod 7 ASW fire control system
Electronics/Countermeasures SLQ-32(V)3; Mark-53 Mod 0 Decoy System; Mark-234 Decoy System; SLQ-25A Torpedo Decoy; SLQ-39 Surface Decoy; URN-25 TACAN; UPX-29 IFF System; Kollmorgen Mark-46 Mod 1 Electro-Optical Director
Aircraft 2 embarked SH-60 helicopters ASW operations; RAST (Recovery Assist, Secure and Traverse)
Armament 2 Mark-41 Vertical Launching System (VLS) with 90 Standard, Vertical Launch ASROC (Anti-Submarine Rocket) & Tomahawk ASM (Air-to-Surface Missile)/LAM (Loitering Attack Missile); 5-in (127-mm)/54 (62) Mark-45 gun; 2 (1) CIWS (Close-In Weapon System); 2 Mark-32 triple 324-mm torpedo tubes for Mark-46 or Mark-50 ASW torpedos

 

Guided Missile Destroyers Lineup

 

Flight IIA: Restart

Ship Yard Launched Commissioned Homeport
DDG-113 John Finn HIIIS 03-28-15
DDG-114 Ralph Johnson HIIIS 12-12-15
DDG-115 Rafael Peralta GDBIW 10-31-15

 

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