Accession Number : ADA309966

Title :   Report to the Chairman, Subcommittee on Military Research and Development, Committee on National Security, House of Representatives. Navy Ship Propulsion. Viability of New Engine Program in Question.

Corporate Author : GENERAL ACCOUNTING OFFICE WASHINGTON DC NATIONAL SECURITY AND INTERNATIONAL A FFAIRS DIV

Personal Author(s) : Schultz, Thomas J. ; Hathaway, Brad ; D'Esopo, John J. ; Brown, Joseph C. ; Fisher, David R.

PDF Url : ADA309966

Report Date : 07 JUN 1996

Pagination or Media Count : 26

Abstract : This General Accounting Office(GAO) report discusses the Department of the Navy's development of a new ship propulsion system, the intercooled recuperated (ICR) gas turbine engine. GAO's review focused on the (1) Navy's need for the engine; (2) cost, schedule, and performance of the engine testing program; and (3) impact of the test results and funding issues on the program's test and development strategies. The ICR gas turbine engine program was established in the mid-1980s to develop an improved surface ship propulsion system that would be fuel efficient. In December 1991, the Navy awarded a contract to the Westinghouse Electric Corporation for the advanced design and an option for full-scale development of the engine.' Their engine development team includes Rolls-Royce Public limited Company (United Kingdom), AlliedSignal Aerospace Incorporated, and CAE Electronics. The engine is essentially an advanced gas turbine engine, similar to the one used on a large commercial aircraft. It is being adapted for marine use by adding a recuperator, an intercooler, and other major components. Housed in a special enclosure, the engine also has a lube oil module, an off-engine intercooling module, and a digital control system specifically built for shipboard application. A critical component of the engine is the recuperator. The recuperator uses engine exhaust to preheat compressed air before fuel combustion, allowing the engine to use less fuel. For example, the Navy expects the ICR engine to achieve a weighted average improvement of 30 percent in fuel efficiency for a mechanical drive destroyer.

Descriptors :   *NAVAL VESSELS, *GAS TURBINES, *MARINE PROPULSION, TEST AND EVALUATION, DIGITAL SYSTEMS, ELECTRONICS, SHIPS, CONTROL SYSTEMS, STRATEGY, OCEAN SURFACE, TEAMS(PERSONNEL), EFFICIENCY, COSTS, COMBUSTION, FUELS, MILITARY RESEARCH, SHIPBOARD, DRIVES, ENGINES, ELECTRIC POWER, GREAT BRITAIN, MECHANICAL COMPONENTS, COMPRESSED AIR, LUBRICATING OILS, DESTROYERS.

Subject Categories : Marine Engineering
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE