USS Baton Rouge (SSN-689) was a Los Angeles-class nuclear-powered attack submarine which served with the United States Navy.

The latter has a range of either 280 or 1,600 miles (450 or 2,500 km), depending on whether it is anti-ship or strike variant, and is nuclear-compatible, although this capability is normally not deployed on Los Angeles-class submarines.

[2] Since the boat did not incorporate the vertical launching system found on later Los Angeles-class submarines, the Harpoons and Tomahawks were torpedo tube-launched.

[3] Heat produced from the S6G reactor converted water into steam, powering two turbines, and thus the propeller shaft (see Nuclear marine propulsion).

[2] A crucial component in Baton Rouge's ability to perform her mission were the comprehensive defensive, navigational and sonar systems.

[6] Launched on 26 April 1975 in the presence of sponsor Mrs. Felix Edward Hebert, wife of the United States representative from the first district and the former chairman of the House Armed Services Committee, Baton Rouge was commissioned on 25 June 1977.

[1][7] Based at Norfolk and assigned to Submarine Squadron 8, Baton Rouge's immediate history following the commissioning was characterized by shakedown training in New London, Connecticut, among other tests.

These included participation in two major ASW exercises and visits to such widely separated places as Fort Lauderdale, Florida, and Halifax, Nova Scotia.

During September–October, Baton Rouge participated in a major NATO exercise – Operation Ocean Safari – which took her across the Atlantic once more and included a call at Rotterdam, the Netherlands.

[8] At 20:16 local time on 11 February 1992, while on patrol off Kildin Island near Severomorsk, Baton Rouge collided with the Russian Sierra-class attack submarine K-276 Kostroma.

As part of post-Cold War restructuring, the U.S. Navy decided to decommission 14 of the first 31 ships in the Los Angeles-class instead of refueling them, most at between 17 and 19 years of service.