Hobart-class destroyer

RBJ
2 years ago
Hobart-class destroyer 0Hobart-class destroyer 1Hobart-class destroyer 2Hobart-class destroyer 3Hobart-class destroyer 4Hobart-class destroyer 5Hobart-class destroyer 6
Yes
Builder:
Type:
Planned:
3
Completed:
3
Commissioned:
Complement:
202
Displacement:
7000 t
Length:
147.2 m
Beam:
18.6 m
Propulsion:
  • Combined diesel or gas (CODOG) arrangement
  • 2 * General Electric Marine model 7LM2500-SA-MLG38 gas turbines, 17,500 kilowatts (23,500 hp) each
  • 2 * Caterpillar Bravo 16 V Bravo diesel engines, 5,650 kilowatts (7,580 hp) each
  • 2 * controllable pitch propellers
Speed:
28 knots
Range:
Over 5,000 nautical miles (9,300 km; 5,800 mi) at 18 knots (33 km/h; 21 mph)
Electronics:
  • Aegis combat system
  • Lockheed Martin AN/SPY-1D(V) S-band radar
  • Northrop Grumman AN/SPQ-9B X-band pulse Doppler horizon search radar
  • Raytheon Mark 99 fire-control system with two continuous wave illuminating radars
  • 2 * L-3 Communications SAM Electronics X-band navigation radars
  • Ultra Electronics Sonar Systems, hull mounted sonar and towed sonar
  • Ultra Electronics Series 2500 electro-optical director
  • Sagem VAMPIR IR search and track system
  • Rafael Toplite stabilised target acquisition sights
  • ITT EDO Reconnaissance and Surveillance Systems ES-3701 ESM radar
  • SwRI MBS-567A communications ESM system
  • Ultra Electronics Avalon Systems multipurpose digital receiver
  • Jenkins Engineering Defence Systems low-band receiver
  • 4 * Nulka decoy launchers
  • 4 * 6-tube multipurpose decoy launchers
Armament:
  • 48-cell Mark 41 Vertical Launch System (RIM-66 Standard 2 missile, RIM-162 Evolved Sea Sparrow missile)
  • 2 * 4-canister Harpoon missile launchers
  • 1 * Mark 45 (Mod 4) 5-inch gun
  • 2 * Mark 32 Mod 9 two-tube torpedo launchers (Eurotorp MU90 torpedoes)
  • 1 * Phalanx CIWS
  • 2 * 25mm M242 Bushmaster autocannons in Typhoon mounts
Aircraft:

1 * MH-60R Seahawk

The Hobart class is a ship class of three air warfare destroyers (AWDs) being built for the Royal Australian Navy (RAN). Planning for ships to replace the Adelaide-class frigates and restore the capability last exhibited by the Perth-class destroyers began by 2000, initially under acquisition project SEA 1400, which was re-designated SEA 4000. Although the designation «Air Warfare Destroyer» is used to describe ships dedicated to the defence of a naval force (plus assets ashore) from aircraft and missile attack, the planned Australian destroyers are expected to also operate in anti-surface, anti-submarine, and naval gunfire support roles.

Planning for the Australian Air Warfare Destroyer (as the class was known until 2006) continued through the mid-2000s, with the selection of the Aegis combat system as the intended combat system and ASC as the primary shipbuilder in 2005. In late 2005, the AWD Alliance was formed as a consortium of the Defence Materiel Organisation (DMO), ASC, and Raytheon. Between 2005 and 2007, Gibbs & Cox's Evolved Arleigh Burke-class destroyer concept and Navantia's Álvaro de Bazán-class frigate competed for selection as the AWD design. Although the Arleigh Burke design was larger and more capable, the Álvaro de Bazán design was selected in June 2007 as it was an existing design, and would be cheaper, quicker, and less risky to build.

Three ships were ordered in October 2007, and will be assembled at ASC's facility in Osborne, South Australia, from 31 pre-fabricated modules (or 'blocks'). An option to build a fourth destroyer was included in the original contract, but has not been exercised. ASC, NQEA Australia, and the Forgacs Group were selected in May 2009 to build the blocks, but within two months, NQEA was replaced by BAE Systems Australia. Construction errors and growing delays led the AWD Alliance to redistribute the construction workload in 2011, with some modules to be built by Navantia. Increasing slippage has pushed the original planned 2014-2016 commissioning dates out by at least three years, with lead ship Hobart to be completed by June 2017, Brisbane in September 2018, and Sydney by March 2020. The AWD Alliance, Navantia, and the involved shipyards have been criticised for underestimating risks, costs, and timeframes; faulty drawings and bad building practices leading to repeated manufacturing errors; and blame-passing. The alliance concept has been panned for having no clear management structure or entity in charge, and having the DMO simultaneously acting as supplier, build partner, and customer for the ships.

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