Accession Number : ADA302568

Title :   Summary Highlights of the Advanced Rotorcraft Transmission (ART) Program,

Corporate Author : AMERICAN INST OF AERONAUTICS AND ASTRONAUTICS NEW YORK

Personal Author(s) : Bill, Robert C.

PDF Url : ADA302568

Report Date : 08 JUL 1992

Pagination or Media Count : 25

Abstract : The Advanced Rotorcraft Transmission (ART) program is an Army-funded, joint Army/NASA program to develop and demonstrate lightweight, quiet, durable drivetrain systems for next generation rotorcraft. Contract participants in ART include Boeing Helicopters, Sikorsky Aircraft, McDonnell Douglas Helicopter Company, and Bell Helicopter Textron, Inc., with some in-house technical support provided at Lewis Research Center. ART addresses the drivetrain requirements of two distinct next generation aircraft classes: (1) Future Air Attack Vehicle, a 10,000 to 20,000 lb aircraft capable of undertaking tactical support and air-to-air missions; (2) Advanced Cargo Aircraft, a 60,000 to 80,000 lb aircraft capable of heavy lift field support operations. Both tiltrotor and more conventional helicopter configurations are included in the ART program Specific objectives of ART include reduction of drivetrain weight by 25 percent compared to baseline state- of-the-art drive systems configured and sized for the next generation aircraft, reduction of noise level at the transmission source by 10 dB relative to a suitably sized and configured baseline, and attainment of at least a 5000 hr mean-time-between-removal. The technical approach for achieving the ART goals includes application of the latest available component, material, and lubrication technology to advanced concept drivetrains that utilize new ideas in gear configuration, transmission layout, and airframe drivetrain integration.To date, candidate drivetrain systems have been carried to a conceptual design stage, and trade-off studies have been conducted resulting in selection of an ART transmission configuration for each of the four contractors. The final selection was based on comparative weight, noise, and reliability studies.

Descriptors :   *AIRCRAFT ENGINES, *HELICOPTERS, *TRANSPORT AIRCRAFT, *ROTARY WING AIRCRAFT, *TRANSMISSIONS(MECHANICAL), REQUIREMENTS, METHODOLOGY, CONTRACTORS, FORGING, RELIABILITY, BASE LINES, INTEGRATION, CONFIGURATIONS, AIR STRIKES, WEIGHT, AIRFRAMES, TAKEOFF, LEVEL(QUANTITY), DRIVES, COMPANY LEVEL ORGANIZATIONS, PLANETARY GEARS, NOISE, TRADE OFF ANALYSIS, ARMY, ROTORS, LUBRICATION, AIR TO AIR.

Subject Categories : Helicopters
      Transport Aircraft
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE