Hearings on Military Posture and H.R. 5068 [H.R. 5970], Department of Defense Authorization for Appropriations for Fiscal Year 1978, Before the Committee on Armed Services, House of Representatives, Ninety-fifth Congress, First Session: Seapower and Strategic and Critical Materials Subcommittee. Navy shipbuilding and conversion (SCN) program for fiscal year 1978, torpedoes and other weapons