Airfields Afloat: The USA’s New Gerald Ford Class Super-Carriers

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.

Pentagon’s Global Broadcast Services Matures

GBS Concept & Elements

Pentagon contracts occasionally refer to the Global Broadcast Services (GBS), a system linked to the Wideband SATCOM program. A variant was first fielded in Bosnia during 1996, and special nodes were also set up in the aftermath of Hurricane Katrina. It sounds almost like a form of global satellite TV – which is close, but not quite right. GBS is not intended to replace existing MILSATCOM (MILitary SATellite COMmunications) systems in any way. Instead, GBS uses a form of “push and store” to distribute high-bandwidth information for local relay, thereby saving critical two-way military satellite communications systems from having to handle every field request.

The other thing that makes GBS so attractive is the ability to provide high-volume data directly into 18-inch antennas, allowing streaming to and storage in devices that can move with units in the field. The GBS “pushes” a high volume of packaged data to these widely dispersed, low-cost receive terminals, whose function resembles the set-top smart cable TV storage box or TiVO used at home.

LCAC Hovercraft: US Navy’s Champion Schleppers Get SLEPped

LCAC versatility

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

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 free-to-view Spotlight article will covers the program from 2005 forward, tracking contracts and key events.

SSDS: Quicker Naval Response to Cruise Missiles

Right now, in many American ships beyond its Navy’s top-tier AEGIS destroyers and cruisers, the detect-to-engage sequence against anti-ship missiles requires a lot of manual steps, involving different ship systems that use different displays. When a Mach 3 missile gives you 45 seconds from appearance on ship’s radar to impact, seconds of delay can be fatal. Seconds of unnecessary delay are unacceptable.

Hence Raytheon’s Ship Self Defense System (SSDS), which is currently funded under the US Navy’s Quick Reaction Combat Capability program. It’s widely used as a combat system in America’s carrier and amphibious fleets. That can be challenging for its developers, given the wide array of hardware and systems it needs to work with. Consistent testing reports indicate that this is indeed the case, and SSDS has its share of gaps and issues. It also has a series of upgrade programs underway, in order to add new capabilities. Managing these demands effectively will have a big impact on the survivability of the US Navy’s most important power projection assets.

Rapid Fire April 2, 2013: CNO on State of US Navy Budget

• Chief of Naval Operations Admiral Greenert updated the US Navy on the state of their budget with a series of short videos. There’s a shortfall due to sequestration, but it’s not as bad as it was prior to the FY13 CR/Appropriations bill. “[P]riorities will be funding reimbursables, reconciling our FY13 operations, preparing to meet our FY14 plans, and restoring required base operations and routine maintenance.” The Navy’s Military Sealift Command also posted updated furlough guidance.

• US Naval Sea Systems Command (NAVSEA) intends to procure later this year commercial software to replace its paper-based work instructions for ship repair work during depot maintenance and overhaul.

• The GAO reviewed the Pentagon’s controversial procurement of Mi-17 helicopters from Russia for end use by the Afghan Air Force.