Austin class amphibious transport dock

The Austin class of amphibious transport dock followed the Raleigh class and was followed by the San Antonio and Cleveland classes. Note that some sources consider Cleveland and later ships to be a part of the Austin class, but the Naval Vessel Registry lists them as a separate class.

General Characteristics

• Unit cost: US$235-419 million
• Power plant: Two boilers, two steam turbines, two shafts, 24,000 shaft horsepower (17.9 MW)
• Length: 171 m (570 feet)
• Beam: 25.2 (84 feet)
• Displacement: Over 17,000 tons full load
• Speed: 21 knots (24.2 mi/h, 38.7 km/h)
• Aircraft: Up to six CH-46 Sea Knight helicopters
• Ship's Company: 24 officers, 396 enlisted, 900 marines
• Armament: Two 25mm Mk38 guns; two Phalanx CIWS; and eight .50-calibre machine guns.

Ships

Ship	Builder	Homeport
USS Austin (LPD-4)	New York Naval Shipyard	Norfolk, Virginia
USS Ogden (LPD-5)	New York Naval Shipyard	San Diego, California
USS Duluth (LPD-6)	New York Naval Shipyard	San Diego, California