USS Indianapolis (LCS-17) is a Freedom-class littoral combat ship of the United States Navy. She is the fourth vessel in the navy named after Indianapolis, Indiana.^[8]

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Indianapolis undergoing acceptance trials in Lake Michigan in 2019
History
United States
Name	Indianapolis
Namesake	Indianapolis, IN
Awarded	29 December 2010[1]
Builder	Marinette Marine[1]
Laid down	18 July 2016[2]
Launched	18 April 2018[1]
Sponsored by	Jill Donnelly
Christened	14 April 2018[3]
Acquired	26 July 2019[4]
Commissioned	26 October 2019[5]
Homeport	Mayport
Identification	MMSI number: 368926296 Callsign: NIDP Hull number LCS-17
Motto	Legacy of War
Status	Active
General characteristics
Class and type	Freedom-class littoral combat ship
Displacement	3,500 metric tons (3,900 short tons) full load[6]
Length	378.3 ft (115.3 m)
Beam	57.4 ft (17.5 m)
Draft	13.0 ft (4.0 m)
Propulsion	2 Rolls-Royce MT30 36 MW gas turbines, 2 Colt-Pielstick diesel engines, 4 Rolls-Royce waterjets
Speed	45 knots (52 mph; 83 km/h) (sea state 3)
Range	3,500 nmi (6,500 km) at 18 knots (21 mph; 33 km/h)[7]
Endurance	21 days (336 hours)
Boats & landing craft carried	11 m RHIB, 40 ft (12 m) high-speed boats
Complement	15 to 50 core crew, 75 mission crew (Blue and Gold crews)
Sensors and processing systems	TRS-4D AESA radar
Armament	BAE Systems Mk 110 57 mm gun RIM-116 Rolling Airframe Missiles Honeywell Mk 50 Torpedo NETFIRES PAM missile in the ASuW module 2 .50 cal (12.7 mm) guns can be fitted with up to 4 Bushmaster 30mm guns
Aircraft carried	2 MH-60R/S Seahawks MQ-8 Fire Scout
Aviation facilities	Flight Deck, Hangar Bay
Notes	Electrical power is provided by 4 Isotta Fraschini V1708 diesel engines with Hitzinger generator units rated at 800 kW each.

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In 2002, the US Navy initiated a program to develop the first of a fleet of littoral combat ships.^[9] The Navy initially ordered two monohull ships from Lockheed Martin, which became known as the Freedom-class littoral combat ships after the first ship of the class, USS Freedom.^[9][10] Odd-numbered U.S. Navy littoral combat ships are built using the Freedom-class monohull design, while even-numbered ships are based on a competing design, the trimaran hull Independence-class littoral combat ship from General Dynamics.^[9] The initial order of littoral combat ships involved a total of four ships, including two of the Freedom-class design.^[9]  Indianapolis is the tenth Freedom-class littoral combat ship to be built.

Indianapolis includes additional stability improvements over the original Freedom design; the stern transom was lengthened and buoyancy tanks were added to the stern to increase weight service and enhance stability.^[11] The ship will also feature automated sensors to allow "conditions-based maintenance" and reduce crew overwork and fatigue issues that Freedom had on her first deployment.^[12]

Marinette Marine was awarded the contract to build the ship on 29 December 2010. Construction began on 18 July 2016 and she was launched on 18 April 2018. she is homeported to Naval Station Mayport, Florida and assigned to Littoral Combat Ship Squadron Two.

Indianapolis was commissioned in a ceremony at Burns Harbor, Indiana on 26 October 2019.^[5][13]

As of March 2020^[update], Indianapolis is billeted to act in the mine countermeasures (MCM) role.^[14]