May 13, 2015 23:38 UTC
that it has successfully flight-tested the APG-79(V) X AESA radar system, intended to extend the service lives of F/A-18C/D aircraft by 15 to 20 years. This latest test builds on a previous successful test in January
, with new features such as Synthetic Aperture Mapping (SAR) announced with the company's press release.
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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Feb 25, 2015 00:01 UTC
An RAAF officer spoke to media
about the two real-world taskings the Wedgetail pulled: the marshaling of disparate aircraft in the search for Malaysia Airlines MH370 and in recent operations against ISIS. Wing Commander Paul Carpenter said the reliability rate was 90 percent or higher. He also said that since the platform is based on the Boeing 737, when it operated away from Australia, it benefited from high availability of the 737 support chain.
over New South Wales
The island continent of Australia faces a number of unique security challenges that stem from its geography. The continent may be separated from its neighbors by large expanses of ocean, but it also resides within a potential arc of instability, and has a number of important offshore resource sites to protect. Full awareness of what is going on around them, and the ability to push that awareness well offshore, are critical security requirements.
“Project Wedgetail” had 3 finalists, and the winner was a new variant of Boeing’s 737-700, fitted with an MESA (multirole electronically scanned array) radar from Northrop Grumman. That radar exchanges the traditional AWACS rotating dome for the E-7A’s “top hat” stationary antenna. That design, and the project as a whole, have run into severe turbulence, creating problems for Boeing earnings, the ADF, and other export orders for the type. DID’s FOCUS articles offer in-depth, updated looks at significant military programs of record. This one covers contracts, events, and key milestones within Australia’s E-7A program, from inception to the current day.
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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.
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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