Hobart-class destroyer

The Hobart-class is a class of three air warfare destroyers (AWD) built for the Royal Australian Navy (RAN) based on the Spanish F100 Álvaro de Bazán-class frigate design. The three ships—HMAS Hobart (DDGH 39), HMAS Brisbane (DDGH 41), and HMAS Sydney (DDGH 42)—are the RAN's most capable air defense platforms and form the core of Australia's naval air defense capability.

Key aspects of the Hobart-class:

1. Construction:

• Based on the Spanish Navantia F100 design
• Built in Australia by ASC (Australian Submarine Corporation) at Osborne, South Australia, with modules from various Australian shipyards
• HMAS Hobart commissioned in 2017, Brisbane in 2018, Sydney in 2020
• The construction program involved significant technology transfer from Spain to Australia and built Australian shipbuilding capability

2. Aegis Combat System:

• The Hobart-class is equipped with the Aegis Combat System, the same system used by US Navy Arleigh Burke-class destroyers
• Aegis provides advanced air defense capability including simultaneous tracking of hundreds of targets and engagement of multiple threats
• The Australian Aegis configuration is unique in using CEA Technologies' CEAFAR radar instead of the standard US SPY-1 radar
• This CEAFAR-Aegis integration demonstrates Australian radar technology capability at the highest level

3. Weapons systems:

• 48 Mk 41 Vertical Launch System (VLS) cells: Can carry a mix of SM-2, ESSM, and Tomahawk missiles
• SM-2 Block IIIC: Standard Missile 2 with a range of approximately 170 km for long-range air defense
• ESSM (Evolved Sea Sparrow Missile): Medium-range air defense for closer threats, with 4 missiles per VLS cell
• Tomahawk Land Attack Missile: Australia has acquired Tomahawk cruise missiles for the Hobart-class, providing long-range land strike capability
• 5-inch (127mm) gun: For naval gunfire support and surface warfare
• Harpoon anti-ship missiles: For surface warfare
• MU90 torpedoes: For anti-submarine warfare
• Phalanx CIWS: Close-in weapon system for last-line defense

4. Sensors:

• CEAFAR AESA radar: Australian-designed phased-array radar for air surveillance and tracking
• CEAMOUNT AESA radar: Missile illumination and fire control radar
• Hull-mounted sonar: For anti-submarine warfare
• Various electronic support measures and countermeasures

5. Capabilities:

• Area air defense: The Hobart-class can provide air defense for a naval task group, protecting multiple ships from air and missile threats
• Ballistic missile defense potential: The Aegis system could potentially be upgraded for ballistic missile defense capability (BMD)
• Land strike: Tomahawk missiles provide long-range precision strike against land targets
• Anti-submarine warfare: Equipped with sonar, torpedoes, and an embarked MH-60R Seahawk helicopter
• Surface warfare: 5-inch gun, Harpoon missiles, and embarked helicopter provide surface warfare capability

6. Operational significance:

• The Hobart-class provides Australia with its most capable air defense platforms
• The Aegis-CEAFAR combination represents a unique Australian contribution to allied naval technology
• The ships can operate independently or as part of allied task groups, interoperating with US, UK, Japanese, and other allied navies
• The Tomahawk acquisition provides Australia with long-range strike capability for the first time

7. Connection to broader defense modernization:

• The Hobart-class complements the Hunter-class frigates (anti-submarine warfare focus)
• The Aegis SM-2 hybrid launcher test at Woomera (July 2026) demonstrated ground-based application of Hobart-class air defense technology
• The class connects to the broader allied Aegis ecosystem (US, Japan, South Korea, Spain, Norway)

The Hobart-class destroyers represent the pinnacle of Australian naval air defense capability. The unique Aegis-CEAFAR integration, combined with SM-2, Tomahawk, and ESSM weapons, makes these ships among the most capable air defense platforms in the Indo-Pacific.