Mar 02, 2015 00:24 UTC
The Navy tells Congress that it will move up work
on the JFK, but not to launch the ship any sooner. To do so would create an impractical overlap of an extra carrier for a couple year prior to the retirement of CVN-68. Instead, they will delay the completion of the ship, waiting until the last minute to purchase and install the electronics, which presumably will be somewhat improved by the period just before launch in the summer of 2022.
USA’s Nimitz Class &
UK’s Invincible Class
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.
Nimitz Class cutaway
As the successor to the 102,000 ton Nimitz Class super-carriers, the CVN-21 program aimed 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.
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Feb 12, 2015 00:25 UTC
Japan is expected to be disappointed
that Australia will have a competitive process for choosing submarine vendors. But it won't be too competitive. Russia and North Korea have been excluded
Bridge to the future?
In its 2009 White Paper, Australia’s Department of Defence and Labor Party government looked at the progress being made in ship killing surveillance-strike complexes, and at their need to defend large sea lanes, as key drivers shaping future navies. These premises are well accepted, but the White Paper’s conclusion was a surprise. It recommended a doubling of Australia’s submarine fleet to 12 boats by 2030-2040, all of which would be a new successor design that would replace the RAN’s Collins Class submarines.
The surprise, and controversy, stem from Australia’s recent experiences. 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 had a checkered career, including significant difficulties with its combat systems, issues with acoustic signature and propulsion, 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. High-level attention led to a report and recommendations to improve the force, but whether they will work remains to be seen. Meanwhile, the nature of Australia’s SEA 1000 future submarine project – and its eventual cost – remain unclear, with estimated costs in the A$ 36-44 billion range. This FOCUS article covers Australia’s options, decisions, and plans, as their future submarine program slowly gets underway.
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Oct 26, 2014 20:00 UTC
Latest updates[?]: DAC clears Project 75i, but conditions set by India's political class have cut the throat of their future submarine force structure.
India’s submarine fleet currently consists of 16 boats: 10 Russian SSK Kilo (Sindhugosh) Class, 4 locally built SSK U209 (Shishumar) Class, a leased nuclear-powered Improved Akula Class SSN from Russia (INS Chakra), and its own INS Arihant SSBN. Most of the Kilos have been modernized, but readiness rates for India’s existing submarine fleet sits below 40%, and the U209s will have trouble lasting much beyond 2015. With Pakistan acquiring modern submarines, and Chinese submarine building exploding, expanding India’s submarine fleet became an obvious national priority.
In 2005, India confirmed that it would buy 6 Franco-Spanish Scorpene diesel submarines, with an option for 6 more and extensive technology transfer agreements. Unfortunately, 7 years after that deal was signed, “Project 75″ has yet to field a single submarine. A poor Indian procurement approach, and state-run inefficiency, are pushing the country’s entire submarine force toward an aging crisis. This DID FOCUS article covers the Scorpene deal and its structure, adds key contracts and new developments, and offers insights into the larger naval picture within and beyond India.
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Jan 21, 2014 17:34 UTC
Latest updates[?]: Arihant scheduled to go to sea in March 2014 - meanwhile, phased reactor power-up continues; Additional Readings sections updated.
SSN Akula Class
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.
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