Moisture Indicating Lacquer for 20 mm Ammunition

Abstract

Hangfire problems encountered in M61 gun installations on USAF aircraft dictated the need for a moisture-indicating system which could be used to screen 20 mm ammunition. This report describes the development of such a system utilizing a color-producing reaction between ferric ammonium citrate and gallic acid. When formulated into a suitable lacquer system and applied to a cartridge case, water contamination was indicated by a color change from gray to black.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0766717

Entities

People

  • Bruce W. Brodman
  • Michael J. Ennis

Organizations

  • Frankford Arsenal

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acid-Base Indicators
  • Acids
  • Aircrafts
  • Ammunition
  • Cartridge Cases
  • Classification
  • Coatings
  • Determinants (Mathematics)
  • Engineering
  • Films
  • Microcapsules
  • Munitions
  • Projectiles
  • Propellants
  • Resins
  • Security
  • Weapons

Readers

  • Analytical Chemistry
  • Software Engineering
  • ballistics.