SEAGNAT Safety and Arming Device.

Abstract

This report summarizes the design development and testing of a safety and arming (S&D) device for the NATO SEAGNAT time fuze. This S&A device is the result of modifications to the existing M429 safing and arming device. Three major changes were made to the M429 mechanism: (1) the spring-mass system was changed to permit arming at 8 g's; (2) a single pole single throw switch was added. The switch closed at arming and was electrically isolated from the S&A and the outer housing; and (3) the rotor is locked in the safe position to prevent movement prior to the launch signal. All performance and safety requirements were met as could be determined by the testing performed at Hamilton Technology. The device is housed within an aluminum cylinder 1.515 in. dia. by 1.550 in. long with a 2.015 in. dia. mounting flange at one end. The safe or armed condition may be determined through a window at the top of the housing. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1981
Accession Number
ADA100309

Entities

People

  • R. G. Eshleman

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Actuators
  • Aluminum
  • Aluminum Foil
  • Arming Devices
  • Assembly
  • Detonators
  • Electric Detonators
  • Electromagnetic Shielding
  • Explosive Trains
  • Explosives
  • Lepidoptera
  • Lubricants
  • Metals
  • Molecular Orbital Theory
  • Rockets
  • Terminals
  • Time Fuzes

Readers

  • Explosive Engineering.
  • Munitions and Ordnance Engineering
  • Structural Dynamics.