Jan 15, 2015 15:29 UTC
Back in 2008, the Navy signaled its desire to its desire to incorporate the “far term sea-based terminal defense” capacity of the SM-6 into its Aegis system, with one hurdle being some ships’ radars being capable of handling the sensor data requirements. They then hoped for operational capability in 2015. Yesterday, Raytheon announced in a widely-parroted release that the Navy had indeed approved the SM-6 for additional Aegis systems, to include those Arleigh Burke-class guided missile destroyers from the 1994-keel-laid The Sullivans (DDG-68) onward.
This appears to put to rest concerns that the Zumwalt-class (DDG-1000) program wouldn’t be able to employ (see “Weapons” section) the standard family of missiles, although confirmation is being from both Raytheon and the Navy.
Jan 15, 2015 04:15 UTC
Latest updates[?]: Raytheon announced that the Navy has approved the SM-6 for additional Aegis systems, to include those Arleigh Burke-class guided missile destroyers from the 1994-keel-laid The Sullivans (DDG-68) onward.
The AEGIS Ballistic Missile Defense System seamlessly integrates the SPY-1 radar, the MK 41 Vertical Launching System for missiles, the SM-3 Standard missile, and the ship’s command and control system, in order to give ships the ability to defend against enemy ballistic missiles. Like its less-capable AEGIS counterpart, AEGIS BMD can also work with other radars on land and sea via Cooperative Engagement Capability (CEC). That lets it receive cues from other platforms and provide information to them, in order to create a more detailed battle picture than any one radar could produce alone.
AEGIS has become a widely-deployed top-tier air defense system, with customers in the USA, Australia, Japan, South Korea, Norway, and Spain. In a dawning age of rogue states and proliferation of mass-destruction weapons, the US Navy is being pushed toward a “shield of the nation” role as the USA’s most flexible and most numerous option for missile defense. AEGIS BMD modifications are the keystone of that effort – in the USA, and beyond.
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Jan 13, 2015 07:38 UTC
Latest updates[?]: USN paying for hardware changes, but the radar's software weaknesses are still a problem, 7 years after introduction. January 2015 flight test was deemed successful by Raytheon.
AN/APG-79 AESA Radar
The AN/APG-79 Active Electronically Scanned Array (AESA) radar began life as a replacement. Initial F/A-18 E/F Super Hornet production batches installed Raytheon’s all-weather, multimode AN/APG-73, but the APG-79 has intrinsic technical features that offered revolutionary increases in capability, reliability, image resolution, and range.
Unlike the APG-73 that equipped the first Super Hornets, the APG-79’s AESA array is composed of numerous solid-state transmit and receive modules that are fixed in place, eliminating a common cause of breakdowns. To move their beams, they rely on electronic changes in each module’s transmissions, creating useful interference patterns in order to aim, focus and shape their output. Other system components include an advanced receiver/exciter, ruggedized commercial-off-the-shelf (COTS) processor, and power supplies. With its open systems architecture and compact COTS parts, it changes what both aircrews and maintenance staff can do with a fighter radar – and does so in a smaller, lighter package.
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Dec 15, 2014 16:30 UTC
Latest updates[?]: Another reform announcement: more delays, cost overruns TBD.
F100 visits Sydney
Under the SEA 4000 Air Warfare Destroyer program, Australia plans to replace its retired air defense destroyers with modern ships that can provide significantly better protection from air attack, integrate with the US Navy and other coalition partners, offer long-range air warfare defense for Royal Australian Navy task groups, and help provide a coordinated air picture for fighter and surveillance aircraft. Despite their name and focus, the ships are multi-role designs, with a “sea control” mission that includes area air defense, advanced anti-submarine operations, and the ability to fight other ships.
The Royal Australian Navy took a pair of giant steps in June 2007, when it selected winning designs for its keystone naval programs: Canberra Class LHD amphibious operations vessels, and Hobart Class “air warfare destroyers.” Spain’s Navantia made an A$ 11 billion clean sweep, winning both the A$ 3 billion Canberra Class LHD and the A$ 8 billion Hobart Class Air Warfare Destroyer contracts. The new AWD ships were scheduled to begin entering service with the Royal Australian Navy in 2013, but that date has now slipped to 2016 or so. A 2014 ANAO report examines why – and the answers aren’t pretty.
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