CMC Program Defining Future SSBN Launchers for UK, USA

The USA’s Ohio/ Henry M. Jackson Class and Britain’s Vanguard Class SSBNs (i.e. nuclear missile submarines) will begin experiencing age-related risks by the late 2010s, and military programs of this type can easily take 15-20 years from concept to fielding. The Common Missile Compartment (CMC) sub-program will help to define one of the next-generation SSBN’s most important constraints.

CMC aims to define the missile tubes and accompanying systems that would be used to launch new ballistic missiles, successors to the current Trident II/ D5 missile fleet used by the USA and Britain. Key options under consideration include a widened diameter for each tube from 2.21m – 3.04m, and the potential for flexibility beyond nuclear missiles.

Virginia Pivot: The USA’s Multi-Year Block IV Sub Deal

A 5-year, $17 billion deal will build 10 Virginia Class Block IV fast attack submarines for the US Navy, bringing production to 2 boats per year at long last. The USA’s nuclear submarine fleet gives it unmatched flexibility, but it’s confronted with rising submarine numbers in China and around the Pacific, even as its Los Angeles Class submarines are beginning to exit the fleet. Aircraft carriers may dominate in peacetime, but as anti-ship missiles gain longer reach and greater lethality, and sensors improve, some analysts are coming to see submarines as the key to wartime naval power…

Trident II D5 Missile: Keeping Up with Changing Times

Nuclear tipped missiles were first deployed on board US submarines at the height of the Cold War in the 1960s, to deter a Soviet first strike. The deterrence theorists argued that, unlike their land-based cousins, submarine-based nuclear weapons couldn’t be taken out by a surprise first strike, because the submarines were nearly impossible to locate and target. Which meant that Soviet leaders could not hope to destroy all of America’s nuclear weapons before they could be launched against Soviet territory. SLBM/FBM (Submarine Launched Ballistic Missile/ Fleet Ballistic Missile) offered shorter ranges and less accuracy than their land-based ICBM (Inter-Continental Ballistic Missile) counterparts, but the advent of Trident C4 missiles began extending those ranges, and offering other improvements. The C4s were succeeded by larger Trident II D5 missiles, which added precision accuracy and more payload.

The year that the Trident II D5 ballistic missile was first deployed, 1990, saw the beginning of the end of the missile’s primary mission. Even as the Soviet Union began to implode, the D5’s performance improvements were making the Trident submarine force the new backbone of the USA’s nuclear deterrent – and of Britain’s as well. To ensure that this capability was maintained at peak readiness and safety, the US Navy undertook a program in 2002 to replace aging components of the Trident II D5 missile called the D5 Life Extension (LE) Program. This article covers D5 LE, as well as support and production contracts associated with the American and British Trident missile fleets.

SSBN-X Subs: Congressmen Promote Refresh, Have Sub Bases in Districts

The US Navy needs new SSBN nuclear missile submarines. Their existing Ohio Class boats will begin to retire at a rate of 1 hull per year, beginning in 2027, as they reach the end of their 42-year operational lifetimes. Hence SSBN-X, also known as the Ohio Replacement Program for now.

The first step toward recapitalization involved a new Common Missile Compartment and Advanced Launcher for current and future nuclear missiles. The next step involves finalizing a design that can serve effectively to 2080, without destroying the US Navy’s shipbuilding budget in the process. Good luck with that one, but they have to to try. The maintenance of the USA’s nuclear deterrent is too important, in a world where nuclear weapons are proliferating.

India’s Nuclear Submarine Projects

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 pushed its hand-over date to 2012. As efforts to move the Nerpa into service continue, India has finally launched its indigenous nuclear sub Arihant, to begin sea trials and testing.

The US Navy’s Nuclear Propulsion Contracts

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.

The USA’s E-6 Fleet: Take Charge, And Move Out!

The USA’s E-6 Mercury (aka. TACAMO, as in TAke Charge And Move Out) “survivable airborne communication system” airplanes support their Navy’s SSBN ballistic missile submarine force and overall strategic forces. With the advent of the new “Tactical Trident” converted Ohio Class special operations subs, their unique capabilities become even more useful. The E-6B version also has a secondary role as a “Looking Glass” Airborne National Command Post, and in recent years they have seen use as communications relay stations over the front lines of combat.

Delivery of the first production E-6 aircraft took place in August 1989, with delivery of the 16th and final airplane coming in May 1992. This is DID’s FOCUS Article concerning the E-6 system, which includes details concerning the capabilities and associated contracts. The latest contracts involve important fleet upgrades, as the Navy tries to drag the jet’s systems into the 21st century.

Astute Buy? Britain Spends Big on its Next Fast Submarines

Britain retired its nuclear-powered 4,900t SSN Swiftsure Class fast attack boats in 2010, and has begun phasing out its follow-on 5,300t SSN Trafalgar Class, before the effects of the ocean’s constant squeezing and release start making them dangerous to use. The last Trafalgar Class boat is expected to retire by 2022, and replacements were required. Submarines are considered to be a strategic industry in Britain, which remains committed to nuclear-powered submarines for their entire fleet. As such, there was never any question of whether they’d design their own. The new SSN Astute Class were designed to be stealthier than the Trafalgars, despite having 39% more displacement at 7,400t submerged.

Britain’s 6 Swiftsure and 7 Trafalgar Class boats will eventually find themselves replaced by 7 of the new Astute Class. The new submarine class has had its share of delays and difficulties, but the program continues to move forward with GBP 2.75 billion in contracts over the past week.

France’s Future SSNs: The Barracuda Class

In December 2006, France’s Defense 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.

Virginia Block III: The Revised Bow

“GDEB Receives $148M as Virginia Class Lead Yard” described changes to the Virginia Class submarine’s design that are expected to reach 20% of the $200 million savings goal by the time orders for the versatile sea attack/ land attack/ special forces submarines rise to 2 per year, in 2012.

The bow changes cover the FY 2009-2013 ships, referred to as Block III. SSN 774 Virginia – SSN 777 North Carolina are Block I, and SSNs 778-783 will be Block II. Block III begins with the 11th ship of class, SSN 784. Long lead time component orders began May 22/08, and the submarine is expected to be ready for delivery around 2015. A fuller explanation of Block III’s extensive bow changes, and an accompanying graphic, may be found below – along with contract updates that include additional improvements and sonar development.