Assessment of Hollow (Tubular) Projectile Time of Flight on Vulcan Air Defense System (VADS) Accuracy

Abstract

Man in the loop experiments, utilizing the Vulcan Air Defense System Dynamic Field Evaluator (VADS-DFE), were conducted to assess VADS accuracy with standard M246 and reduced time of flight hollow (tubular) ammunition. Simulated targets flying linear flight paths with velocity over crossing range (V/R) ratios of 0.33 rad/s, 0.66 rad/s and 0.99 rad/s were utilized. Time histories of weapon pointing and tracking error were collected, reduced and analyzed. With hollow round ballistics employed in lieu of M246 ballistics, substantial improvements in weapon pointing accuracy were noted. Effects on tracking accuracy, however, were small. In essence, standard Vulcan appears as a 24.0 mil system and Vulcan, with hollow ballistics, an 18.0 mil system for a net improvement of 27 percent. Tracking accuracy is hardly impacted (4 percent). Due to various experimental constraints, the results produced were inconclusive yet promising. It was therefore recommended that further development of hollow (tubular) ammunition continue for anti-aircraft warfare.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADB055223

Entities

People

  • Bohdan Gol
  • Christine Eastburn
  • Robert S. Segal

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Defense
  • Altitude
  • Ammunition
  • Ballistics
  • Computers
  • Control Systems
  • Data Analysis
  • Defense Systems
  • Fire Control Systems
  • Geometry
  • Lead Angle
  • Muzzle Velocity
  • Simulators
  • Standards
  • Test And Evaluation
  • Test Facilities

Readers

  • Missile Defense Systems.
  • Systems Analysis and Design
  • ballistics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Spacecraft Maneuvers