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The US Navy’s Nuclear Propulsion Contracts

Latest update (Feb 6/12)

$583M to Bechtel; Article updates.

ENG_Basic_Nuclear_Propulsion_Plant.jpg
Basic Nuclear Propulsion
(click to expand)

This DII Spotlight article covers American nuclear propulsion industrial base contracts since the beginning of FY 2006. The USA has had an all-nuclear submarine fleet for over 50 years, a policy that dates back to the visionary Admiral Hyman Rickover. On the surface, America’s aircraft carriers became an all-nuclear fleet with the retirement of the USS Kitty Hawk [CV 63], and FY 2008-09 spending legislation pushed the US Navy to use nuclear power in its future CG (X) cruisers and new amphibious ship classes. At present, however, carriers are the only nuclear-powered American surface ships on the drawing board.

The civilian nuclear sector has seen major advances over the last 2 decades, and so has the military sector. The commitment to a nuclear fleet includes funding for those technical advances, as well as work to maintain both the reactors on board American ships, and the industrial base that supports them. This DID Spotlight article covers those efforts:

India’s ATV SSBN Submarine Project

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SSN Akula Class
SSN Akula Class
DII

Russia hands over INS Chakra; Reports on the Arihant Class; Article reorganization. (Jan 23/12)

According to GlobalSecurity.org, India’s ATV (advanced technology vessel) program to build a nuclear-powered submarine began in 1974, and became a serious effort in 1985. The Federation of American Scientists’ December 1996 document “The Indian Strategic Nuclear Submarine Project: An Open Literature Analysis” remains one of the best single open sources on India’s program. Unfortunately, it was compiled over a decade ago and has become rather dated. That project has continued, and this DID Spotlight article continues to collect open source information on the ATV program.

More and more sources were claiming that a rented Russian Akula class boat would be operational as a training vessel by 2009. The concept was correct, but the date was not. A deadly accident during K-152 Nerpa’s sea trials delayed that project, and further complications have pushed its in-service date to 2011. As efforts to move the Nerpa into service continue, India has finally launched its indigenous nuclear sub Arihant, to begin sea trials and testing…

Australia’s Next-Generation Submarines

HMAS Waller
Bridge to the future?

Kokoda report published – objectivity, conclusions, seriousness all questioned. (Jan 19/12)

In its 2009 White Paper, Australia’s Department of Defence and Labor Party government looked at the progress being made in anti-shipping surveillance-strike complexes, and the need to defend large sea lanes, and dropped something of a surprise. They proposed increasing Australia’s submarine fleet to 12 boats by 2030-2040, all of which would be successors to Australia’s a current fleet of advanced Collins class submarines.

The Collins class was designed with the strong cooperation of ThyssenKrupp’s Swedish Kockums subsidiary, and built in Australia by state-owned ASC. The class has encountered a number of issues, including significant difficulties with its combat systems, issues with acoustic signature, major cost growth to A$ 5+ billion, and schedule slippage. Worse still, reports indicated that the RAN can only staff 2 of its 6 submarines put a huge crimp in the fleet’s usefulness. High-level attention led to 29 recommendations aimed at improving conditions and staffing on Australia’s submarines, and those are now being implemented. Their long term effect remains to be seen. So, too, does the nature of Australia’s SEA 1000 future submarine project – and its eventual cost…

Design & Preparations Continue for the USA’s New CVN-21 Super-Carriers

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CV-74 USS Stennis and CV HMS Illustrious
USA’s Nimitz Class &
UK’s Invincible Class
DII

$113M more to prep construction of CVN 79. (Dec 21/11)

Some nations have aircraft carriers. The USA has super-carriers. The French Charles De Gaulle Class nuclear carriers displace about 43,000t. India’s new Vikramaditya/ Admiral Gorshkov Class will have a similar displacement. The future British CVF Queen Elizabeth Class and related French PA2 Project are expected to displace about 65,000t, while the British Invincible Class carriers that participated in the Falklands War weigh in at just 22,000t. Invincible actually compares well to Italy’s excellent new Cavour Class (27,000t), and Spain’s Principe de Asturias Class (17,000t). The USA’s Nimitz Class and CVN-21 Gerald R. Ford Class, in contrast, fall in the 90,000+ tonne range. Hence their unofficial designation: “super-carriers”. Just one of these ships packs a more potent air force than many nations.

CVN-71 Theodore Roosevelt Cutaway
Nimitz Class cutaway

As the successor to the 102,000 ton Nimitz Class super-carriers, the CVN-21 program aims to increase aircraft sortie generation rates by 20%, increase survivability to better handle future threats, require fewer sailors, and have depot maintenance requirements that could support an increase of up to 25% in operational availability. The combination of a new design nuclear propulsion plant and an improved electric plant are expected to provide 2-3 times the electrical generation capacity of previous carriers, which in turn enables systems like an Electromagnetic Aircraft Launching System (EMALS, replacing steam-driven catapults), Advanced Arresting Gear, and integrated combat electronics that will leverage advances in open systems architecture. Other CVN-21 features include an enhanced flight deck, improved weapons handling and aircraft servicing efficiency, and a flexible island arrangement allowing for future technology insertion. This graphic points out many of the key improvements.

DID’s CVN-21 FOCUS Article offers a detailed look at a number of the program’s key innovations, as well as a list of relevant contract awards and events.

France’s Future SSNs: The Barracuda Class

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SSN Barracuda cutaway
DII

Hull joins on 2nd sub using improved manufacturing techniques. (Dec 19/11)

In December 2006, France’s Defence Ministry awarded a contract for nuclear-propelled fast attack submarines to state-owned warship builder DCN and nuclear energy group Areva-TA. The contract’s total value could be as high as EUR 8.6 billion, and it is set up as an initial EUR 1.0-1.4 billion contract (reports vary), followed by 6 options (tranches conditionnelles) to cover development expenses, the production of more submarines, and through-life support during their first years of operational service.

All ships wear out over time, and the repeated squeezing and relaxing experienced by submarine hulls make their replacement times less negotiable. The USA began introducing their new-generation NSSN Virginia Class fast attack boats in 2004, and Britain’s problem-plagued SSN Astute Class followed in 2010. Now, it’s France’s turn to renew its SSN fleet, as DCNS works to supply 6 Barracuda Class submarines between 2016-2027…

Brazil & France in Deal for SSKs, SSN

SSK S30 Tupi
Current: S30 Tupi
(click to view larger)

Construction begins; 1st section joined. (Dec 8/11)

Brazil’s submarines are seen as a key part of the country’s new national armaments and defense strategy, which was released on Dec 18/08. It places a higher priority on protection of Brazil’s offshore energy reserves, and sees submarines as key players in that effort. The experience of the 1982 Falklands War, in which Argentina’s entire fleet was kept in port by Britain’s nuclear fast attack boat HMS Conqueror, is often cited as instructive.

In 2008, Brazil and France signed an agreement to build 4 diesel-electric submarines (SSK), and provide assistance in developing and fielding the non-nuclear parts of 1 nuclear fast attack submarine (SSN). Key specifics, such as the presence or absence of SSK Air Independent Propulsion technologies, have yet to be made public, but the terms of the agreement leave the possibility open. Reports regarding the submarine deal’s value have varied, but the budget is now set at almost EUR 7 billion. Financing now appears to be in place, and recent releases explain the budgets, the timing, and some of the key players in Brazil’s Prosub program…

USS Enterprise: The Beginning of the End for the “Big E”

CVN-65
The all-nuclear
Task Force One, 1964

Funding to keep her running to the end. (Nov 10/11)

There was a time when USS Enterprise was the most famous ship in the world. It still is, but these days, most people think of the fictional starship rather than the world’s first nuclear-powered carrier. The real USS Enterprise was commissioned in 1961, which means that its long career of service must soon draw to a close. In April 2008, a $453.3 million contract covered the ship’s Extended Drydocking Selected Restricted Availability for maintenance and upgrades – but reached over $660 million before all was said and done, and took 2 years.

That will keep “the Big E” going for a few more years. By 2014, however, USS Enterprise is scheduled to fade into history, to be replaced by the first ship [CVN 78] of the Gerald R. Ford Class. This time, there will be no reruns or syndication deals. When the end comes, plans and facilities for permanently decommissioning the ship and dealing with its A2W nuclear reactors will need to be ready…

Tending the Tender: Maintenance for USS Frank Cable

Littoral Combat Ship (LCS)
AS-40 & SSN-714, Guam
(click to enlarge)

It’s great to have a fleet of submarines, but even nuclear submarines need some level of at-sea support to improve their effectiveness. Submarine tenders can bring a boat food, fuel, weapons, and other supplies, while carrying a full array of maintenance equipment and personnel. The 664 foot, 23,000 ton USS Frank Cable [AS-40] was commissioned back in 1978, and was supposed to have ended her career in 1996. Unfortunately, the USS Holland [AS-32] needed to be retired that year, after 33 years of service, and the US Navy had no ship to replace her in the Western Pacific. USS Frank Cable was refurbished and reactivated for that role, and reached the 33-year mark herself in 2011. The ship was transferred from the US Navy on Feb 1/10, becoming 1 of only 2 Submarine Tenders in US Military Sealift Command’s 26-vessel Special Mission Ships Program. AS-40’s crews have won a number of commendations, but her most high profile incident took place on Dec 1/06 in Guam, when a steam line ruptured during a safety valve check, killing 2 sailors and injuring 7. A Navy investigation cited the sailors’ heroism during the incident, but there were serious questions afterward concerning some of the command decisions.

US Destroyers Get a HED: More Power to Them!

DDG-100 Kidd
USS Kidd [DDG-100]

The US Navy’s DDG-51 Arleigh Burke Class destroyers are the backbone of their present and future fleet. Unfortunately, they have a problem. Two problems, actually.

One problem involves keeping the fleet’s operating costs low, especially fuel use. These ships aren’t as efficient as more modern designs, especially at the low cruising speeds that make up so much of a ship’s operating life. The other problem is that DDG-51 destroyers are having trouble generating enough power, especially if they want to receive new radars like the proposed AMDR. Since this destroyer class includes the majority of American ballistic missile-defense ships, their ability to remain relevant, and to field an upgraded “Flight III” variant, is critical to maintaining US sea power.

A Northrop Grumman team, which includes Curtiss-Wright and L-3, believes that they may have the answer to both problems. Nor are they the only firm looking into this…

LCAC Hovercraft: US Navy’s Champion Schleppers Get SLEPped

US Navy LCAC Brushes Shoreline
LCAC versatility
DII

Propeller fixing contract; Boeing leaves SSC team. (Sept 26/11)

The US military calls them Landing Craft, Air Cushion (LCAC). They’re high-speed, fully amphibious hovercraft capable of carrying a 60-ton payload (75 tons in overload) over water and land at speeds in excess of 40 knots and a nominal range of up to 200 nautical miles. Carrying equipment, troops, and/or supplies, the LCAC launches from inside the well deck of an amphibious warship, then travels the waves at high speed, runs right through the surf zone near the beach, and stops at a suitable place on land. Its cargo walks or rolls off. The LCAC returns to the surf to pick up more. Rinse. Agitate. Repeat.

LCAC ashore
LCAC, ashore

A total of 91 LCACs were built between 1984-2001, and their design itself dates back to the 1970s. They require regular maintenance, refurbishment, upgrades, and even life extension programs to keep them operational into the future. This Spotlight article will covers the program from 2005 forward, tracking contracts and key events…