Austin-class amphibious transport dock

USS Austin (LPD-4)
Class overview
Name	Austin class
Builders	New York Naval Shipyard, Ingalls, Lockheed
Operators	United States Navy  Indian Navy
Preceded by	Raleigh class
Succeeded by	San Antonio class
In commission	1965–2017 (U.S.)
Planned	13
Completed	12
Cancelled	1
Active	1 (with India)
Retired	11
General characteristics
Type	Amphibious transport dock
Tonnage	7,713 DWT
Displacement	9,201 tons (light) 16,914 tons (full)
Length	548 ft (167 m)w/l 569 ft (173 m) o/a
Beam	84 ft (26 m) w/l 105 ft (32 m) extreme
Draft	22 ft (6.7 m) navigational, 34 ft (10 m) ballasted
Propulsion	2 × boilers, 2 × steam turbines, 2 × shafts, 24,000 shp (18,000 kW)
Speed	21 knots (24 mph; 39 km/h)
Boats & landing craft carried	1 × LCAC, or 1 × LCU & 3 × LCM-6, or 4 × LCM-8, or 9 × LCM-6, or 24 × AAV
Complement	24 officers, 396 enlisted, 900 marines
Armament	2 × 25 mm Mk 38 guns 2 × Phalanx CIWS 8 × .50-calibre machine guns
Aircraft carried	Up to 6 CH-46 Sea Knight helicopters

The Austin class was a class of twelve amphibious transport dock ships in service with the United States Navy from 1965 to 2017. Note that the U.S. Naval Vessel Registry list separate Cleveland (seven built) and Trenton (two built) class ships, but most sources lists them as a single class.^[1] Trenton was sold to India and is the only ship still active.