Advanced Antitorque Concepts Study

Abstract

The report summarizes a study of possible alternatives to the tail rotor on single-rotor shaft-driven helicopters. The objective was to select concepts that show improvements over the tail rotor in high-speed dynamics, vulnerability, reliability and maintainability, safety, and at a lower priority level, acoustic detectability, and erosion and foreign object damage. These characteristics were to be obtained without incurring unacceptable penalties in aircraft weight, performance, or cost. The stability and control criteria of MIL-H-8501A were imposed throughout.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1971
Accession Number
AD0729860

Entities

People

  • Arthur W. Grumm
  • Groves E. Herrick

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Army Aircraft
  • Boundary Layer
  • Control Systems
  • Engineers
  • Exhaust Systems
  • Fan Blades
  • Flight Speeds
  • Geometry
  • Helicopters
  • Mach Number
  • Maintenance
  • Military Aircraft
  • Shrouded Propellers
  • Test And Evaluation

Readers

  • Aerospace Engineering
  • Life Cycle Cost Analysis