US Navy Build Programs Face Budget Pressure

By Edward Lundquist
Thursday, June 19, 2014
(U.S. Navy photo by Shelby F. W. West/Released)

Ship construction programs move ahead, but it’s not smooth sailing.

Navies and Coast Guards everywhere face budgetary pressure, even in the U.S. which has the largest Navy in the world. The balance between desire for capacity and capability and pressure for affordability has never been more acute with the precarious budgetary issues presented by declining defense budgets, sequestration, continuing resolutions and government shutdowns.  Even so, there are ongoing major construction efforts to include large nuclear aircraft carriers and submarines, amphibious ships, destroyers and smaller combatants, albeit with compromises in quality, quantity and capability.
To prepare the Navy’s program within the fiscal constraints, Chief of Naval Operations Adm. Jonathan Greenert set the following six priorities. “Number one is the sea-based strategic deterrence. Number two, forward presence. Three, the capability and the capacity to win decisively.  Number four, the readiness to do that. Number five, to sustain our asymmetric capabilities and our technological edge. And number six, to sustain a relevant industrial base. Using these priorities, we build a balanced portfolio of capabilities within the fiscal guidance provided. We continue to maximize our presence in the Asia-Pacific and the Middle East using innovative combinations of rotational, forward-basing, and forward stationing forces.”
U.S. naval shipbuilders are components of large defense companies.  General Dynamics own Electric Boat in Groton, Connecticut, which builds SSNs; Bath Iron Works in Maine, currently building Zumwalt and Arleigh Burke class DDGs; and NASSCO in San Diego, California, where they are building the mobile landing platform (MLP).   Huntington Ingalls Industries owns yards in Newport News, Virginia; Pascagoula, Mississippi; and Avondale, Louisiana, and are building aircraft carriers (CVNs), attack submarines (SSNs); guided missile destroyers (DDGs), amphibious assault ships (LHSs) and amphibious landing platforms (LPDs). 
Two second-tier yards which are subsidiaries of larger foreign-owned companies are also building ships for the U.S. Navy. Italian shipbuilder Fincantieri owns Marinette Marine in Marinette, Wis., where the Freedom variant of the littoral combat ship (LCS) is being constructed; and Australia-owned Austal USA is building the Independence variant LCS platform in Mobile, Alabama, along with the joint high speed vessel (JHSV).

Submarines

The U.S. Navy announced a $17.6 billion multiyear buy of Virginia-class submarines on April 28 that will keep General Dynamics Electric Boat and Huntington Ingalls Newport News shipyards busy for a decade.  EB was selected as the sole source prime contractor for the $17,645,580,644 fixed-price incentive multiyear contract, with Huntington Ingalls as the largest sub-contractor.  Together, both companies have delivered 10 Virginia-class submarines to the Navy, with eight more already under contract.
The newest Virginia-class SSN, North Dakota (SSN-784), was christened Nov. 2, 2013 at Electric Boat, but her commissioning, which was scheduled for May 2014, has been rolled back until some design and material issues are resolved. It is still on track to deliver prior to its August 31 contract delivery date.  North Dakota is the first Virginia-class boat with a redesigned bow which features a pair of Multiple All Up Round Canisters (MAC) for Tomahawk land attack cruise missiles.

Aircraft Carriers
The newest nuclear aircraft carrier, Gerald R. Ford (CVN 78) was christened Nov. 9, 2013 at Newport News Shipbuilding.  Two others, John F. Kennedy and Enterprise, are underway in the construction pipeline. 
The Navy budget says it continues to support a fleet of 11 aircraft carriers, but Sen. Carl Levin (D-MI), chairman of the Senate Committee on Armed Services, says, “The budget in Future Years Defense Program, the FYDP, includes a plan to retire rather than refuel the George Washington. To follow through on the 11 carrier fleet, the administration would have to add almost $4 billion to the FYDP to refuel and retain George Washington.”

Expeditionary Warfare Ships

The Navy has a total of nine amphibious assault ships (LHAs and LHDs). HII is building America (LHA 6), designed to transport Marine Expeditionary Units and their equipment.  At 257m long with a 32m beam, it displaces 44,854 tons.  It has crew of 1,204 and can transport up to 1,800 troops and their equipment.   It has been built to operate the V-22 Osprey and F-35 Joint Strike Fighter. 
The final three of the 11 ship San Antonio-class amphibious transport docks (LPD) are being built by HII (both the HII Avondale and Pascagoula yards have been involved in building the LPDs). The San Antonio-class replaces the Austin-class LPDs, the last of which, USS Denver, is 46 years old.
The oldest of the Navy’s 12 Dock Landing Ships (LSDs), USS Whidbey Island, was commissioned in 1985.  Notionally the Navy wants to have 11 expeditionary strike groups, each with an LHA or LHD, an LPD and LSD.  The Navy is currently evaluating options for replacing the LSDs.
HII’s Pascagoula yard is also building the national security cutter for the Coast Guard.  The company’s fourth U.S. Coast Guard National Security Cutter, Hamilton (WMSL 753), was christened last October.  A total of eight are being built to replace the aging Hamilton-class high endurance cutters. The 418-ft. Bertholf-class cutter is designed to operate independently on extended patrols.

LCS
LCS is a new type of fast, modular, focused mission combatant concept designed and built to counter the asymmetric threats of mines, submarines and surface vessels in the littoral regions of the world. With LCS 1, most of the ship is steel, but the superstructure above the main deck is aluminum. To avoid cross contamination, the structures are built in different facilities. LCS 2 is all-aluminum. Both variants use waterjet propulsion and are the largest waterjet combatants built anywhere. While LCS is unlike other ships in the U.S. fleet, it is the numerical replacement for the frigates, mine warfare ships and coastal patrol craft.
LCS will employ a 3:2:1 manning concept.  Three crews rotate between two ships, one of which is forward deployed for an extended period, while the other ship is stateside for workups and training.
The first variant, USS Freedom (LCS 1) is a semi-planing monohull design built by a team led by prime contractor Lockheed Martin at Marinette. The second, USS Independence, is a trimaran design built by Austal USA.
LCS is reconfigurable, with a large amount of empty space inside for containerized mission packages for mine countermeasures (MCM), antisubmarine warfare (ASW) and surface warfare (SUW), as well as a large flight deck and hangar for both manned and unmanned aircraft. The ship has a core capability to perform a wide variety of operations, while the mission packages can be readily changed as required to give the ship an entirely different capability.
The first Structural Test Firing (STF) of the 30mm gun mission module for the SUW mission package was conducted aboard USS Coronado (LCS 4) off the coast of Southern California April 30.  Already tested and proven on the LCS Freedom variant, the test was the first for the LCS Independence variant. Critics have said LCS is too lightly armed, and less capable than frigates or destroyers. Although the Navy planned to acquire more than 50 of these ships, the Navy was directed not to buy more than 32, and established a Small Surface Combatant Task Force to study alternatives, including a ship that is more “frigate-like.”

DDG 1000
The guided missile destroyer USS Zumwalt (DDG 1000) being built at Bath Iron Works in Maine is more than just a revolutionary new concept.  It is a highly capable surface combatant and strike platform. From its shape, materials and propulsion, to its sensors, weapons and small crew size, Zumwalt incorporates a significant amount of transformational technology introduced in a single new ship design. 
The Navy had originally planned to buy several dozen of these 14,800-ton ships. As costs rose, the numbers were reduced. Now only three will be built. But they are an impressive trio. At 14,800 tons, it is a big ship—the largest destroyer ever built. The superstructure and hangar for DDG 1000 and 1001 are fabricated of composite and represent the largest composite structure ever built. The third ship, DDG 1002, will have a steel deckhouse because the Navy says there is sufficient weight margin that the more expensive composite structure is not required. 
The ships are being built in modules.  The deckhouse structure is one of nine “ultra units” making up DDG 1000. Zumwalt will be the first ship to carry the Advanced Gun System (AGS), which fires the new long range land attack projectile (LRLAP).  DDG 1000 has two of these 155-mm gun mounts to provide all-weather volume and precision fires in support of joint forces ashore, and DDG 1000 has two of these 155-mm gun mounts to provide all-weather volume and precision fires in support of joint forces ashore. The 2.13m long, GPS-guided, rocket-assisted LRLAP round has a range of up to 100 km, the longest range of any naval gun, and can engage targets with an accuracy of a few feet. 
The 80 peripheral vertical launch system (PVLS) missile tubes can carry a variety of missiles, including the Tomahawk land-attack cruise missile.  These missiles can attack fixed targets with great accuracy, but can also loiter around a battle field and get instructions from friendly forces on the scene.  Those tubes can also carry the Evolved Sea Sparrow Missile (in quad-packs that load four missiles into a single PVLS cell) for air defense and AntiSubmarine Rockets that are tipped with torpedoes. 
This ship looks different, too. The large composite superstructure and distinctive “tumblehome” hull — which slopes inward toward the center of the ship as it rises up from the waterline — results in a reduced radar cross section and acoustic signature, making Zumwalt one of the stealthiest surface combatants ever. The Raytheon SPY-3 X-band active phased-array radar detects the most advanced low-observable antiship cruise missile (ASCM) threats.
DDG 1000 has 16 electronics module enclosures (EMEs) that are fully outfitted with 230 cabinets.  The EMEs are produced by Raytheon and are fully tested and ready to install, saving 110,000 man hours per ship. 
The ship is totally integrated thanks to the Total Ship’s Computing Environment (TSCE) from Raytheon and the command and control software integration of the various computing domains that permits the networking and integration of internal and external information into efficient displays for control and monitoring of the ships systems.  Raytheon created 6.7 million lines of code to date for the integrated system that controls everything from ship and machinery control to combat management, weapons control and automated fire suppression.
Despite the fact that it’s almost 50 percent bigger than the 9,000-ton DDG 51, it has a much smaller crew.  The 14,500 ton DDG 1000 has a crew of crew of 142, including the aviation detachment, which will operate a pair of Sikorsky MH-60R Seahawk helicopters and three Northrop Grumman MQ-8B Fire Scout UAVs (compared to the DDG 51 crew of 281, not counting the air detachment). The all-electric integrated propulsion system has the power for future weapons such as electromagnetic rail guns and lasers.

DDG 51
As the Navy is ending the procurement of DDG-1000 with the third ship, it has instead “restarted” the DDG 51-class Aegis destroyer production line.  The DDG 51 program began in the 1970s, and is the largest class of combatants in the world.  The first ship of that class— USS Arleigh Burke (DDG 51)—was commissioned in 1991 and is currently undergoing a midlife modernization, the first of the 62 Arleigh Burkes to do so. With the truncation of the DDG 1000 program at three just three ships, the DDG 51 production line has been reopened, with several more ships of the current configuration Block IIA configuration will be built.  The Block IIA ships are longer than their predecessors and have a helicopter hanger.  With DDG 122, the Navy will begin a new air and missile defense variant which will feature the new air and missile defense (AMDR) radar.

Aegis Modernization
The Navy is modernizing the Aegis fleet with a midlife update to the combat systems and hull, mechanical and electrical (HM&E) systems. Some Aegis ships—including destroyers and some cruisers— are being modified to have an additional capability for ballistic missile defense (BMD) operations. The modification for BMD operations entails new software program for the Aegis combat system and the arming of the ship with the SM-3 missile, a version of the Navy’s Standard Missile that is designed for intercepting ballistic missiles.

JHSV
Originally planned as a joint Army-Navy effort, the Joint High Speed Vessel (JHSV) is now a Navy program.  The split-up came over the aviation capability.  The Army said, “Why would you build a ship with a helicopter deck?” and the Navy said “Why would you build a ship without a helicopter deck?”  JHSV has a flight deck that can operate an MH-60 Seahawk helicopter, although it does not have a hangar. 
Based on a high-speed commercial ferry design, the all-aluminum JHSV has significant internal volume for vehicles, but is strengthened for very heavy equipment, such as M1A1 Abrams main battle tanks and Mine Resistant Armor Protected (MRAP) vehicles, as well as the mechanized wrecking cranes large enough to handle them.
A crew of 22 Military Sealift Command civilians operates the vessel, while additional military mission personnel can embark as required.  The JHSVs have berthing for up to 146 personnel, and there is also airline-type seating for 312 troops and their weapons (it even has racks for stowing weapons) .  
The 1,500-ton ferry is powered by four MTU diesel engines and four waterjets, and can achieve speeds up to 43 knots.  Built for long transits, JHSV is considerably stronger than other ferries to be able to handle high sea states—up to sea state 7. 

MLP 
  
General Dynamics NASSCO is building the unique mobile landing platform (MLP).  Based on a tanker design, the ship can ballast down so that the main deck is awash, and landing craft can be discharged or recovered, and transfer personnel and vehicles from other vessels such as the large, medium-speed, roll-on/roll-off ships (LMSRs) onto landing craft air cushioned (LCAC) vehicles and transport them ashore.  The ship’s size allows for 7,620 square meters of vehicle and equipment stowage space and 380,000 gallons of JP-5 fuel storage.
USNS Mountford Point (MLP 1) returned to San Diego on April 30 following following installation of the ship’s Core Capability Set (CCS) at Vigor Marine, LLC in Portland, Ore.  The CCS enables the transfer of vehicles, personnel and equipment from vessels such as the Large, Medium-speed, Roll-on/Roll-off Ships onto Landing Craft Air Cushioned (LCAC) vehicles for movement to shore. MLPs will have a maximum speed of 15 knots and range of 9,500 nautical miles. At 239 meters long, MLPs displace over 80,000 tons when fully loaded. MLPs will operate with a crew of 34 Military Sealift Command personnel. 

 

(As published in the June 2014 edition of Maritime Reporter & Engineering News - http://magazines.marinelink.com/Magazines/MaritimeReporter)

  •  (U.S. Navy photo courtesy Austal USA/Released)

    (U.S. Navy photo courtesy Austal USA/Released)

  • The Military Sealift Command mobile landing platform ship USNS Montford Point (T-MLP 1) is floated out of General Dynamics NASSCO shipyard.  (U.S. Navy photo courtesy of General Dynamics NASSCO/Released)

    The Military Sealift Command mobile landing platform ship USNS Montford Point (T-MLP 1) is floated out of General Dynamics NASSCO shipyard. (U.S. Navy photo courtesy of General Dynamics NASSCO/Released)

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