Structural Integrity Recording System (SIRS) for U.S. Army AH-1S Helicopters.

Abstract

A research and development program for an improved Army AH-1S helicopter Structural Integrity Recording System (SIRS) was conducted to track fatigue damage accumulation on critical helicopter components. The work was divided into five tasks. Task I included modification of hardware and software of five SIRS recorders fabricated under a previous contract, recording of histogram data on flight conditions representative of current missions flown by AH-1S helicopters, determination of the tail rotor usage spectrum, and recording of flight parameters such as rotor RPM, engine torque, airspeed, altitude, acceleration, outside air temperature, gross weight, and pitch and roll attitude. Task II comprised all work required for installation of the SIRS recorders in AH-1S helicopters. Under Tasks III, IV, and V, installation of the flight recorders, monthly retrieval of data from the five aircraft, processing of data, and removal of the recorders and installation kits was performed. Recommendations for additional improvements on the recorder system and its utilization conclude this report. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1981
Accession Number
ADA098236

Entities

People

  • Axel W. Kolb
  • James G. Dotson

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Amplifiers
  • Computer Programs
  • Computers
  • Damage Assessment
  • Data Processing
  • Data Storage Systems
  • Measurement
  • Plastic Explosives
  • Printed Circuits
  • Recording Systems
  • Reliability
  • Strain Gages
  • Test And Evaluation
  • Transducers
  • Uninterruptible Power Supplies

Readers

  • Aerospace Engineering
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Nuclear Civil Defense.