Long-Line Loiter Personnel Retrieval System: Triaxial Acceleration Tests

Abstract

The report describes the feasibility of using a fixed-wing aircraft, employing free-fall and circling-line techniques, to rescue personnel or retrieve equipment from the ground. The technique involves deploying a line from the aircraft while a controlled turn is maintained, causing the line to describe a diminishing spiral earthward. As a continuation of the efforts described in AMRL-TR-69-140, this report describes measurements of launch g forces and of line tensions in recovering 185 to 231-pound dumies. For 7 launches, the mean total g was 01.7 plus or minus .19 g/sec. Line tension at the aircraft was 360- 645 pounds at launch and from 245-410 pounds when the dummy was in trail behind the aircraft. Results suggest that this method of retrieval is feasible for human subjects or equipment with regard to stability and g load at launch.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0749518

Entities

People

  • Edward A. Behling
  • Eric J. Jumper
  • Richard B. Pilmer

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Altitude
  • Biomedical Research
  • Contracts
  • Data Analysis
  • Engineering
  • Fixed Wing Aircraft
  • Horizontal Stabilizers
  • Instrumentation
  • Measurement
  • Parachutes
  • Photography
  • Vehicles

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