Stability of 90 mm Shell T3

Abstract

It is found that the stability factor of the 90 mm A.A. Shell T3, with the Mechanical Time Fuze M43, fired from the A.A. Gun T2 with a twist of rifling of 1/30 at a muzzle velocity of 2800 f/s, is 1.515. If the twist were reduced to 1/32, the stability factor would be 1.33, and the projectile would still be sufficiently stable. A twist of 1/30 is recommended.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1939
Accession Number
AD0491819

Entities

People

  • H. P. Hitchcock

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Cartridge Cases
  • Center Of Gravity
  • Coefficients
  • Firing Mechanisms (Munitions)
  • Fuzes (Ordnance)
  • Gravity
  • Inertia
  • Line Of Fire
  • Military Research
  • Moment Of Inertia
  • Muzzle Velocity
  • Point Detonating Fuzes
  • Projectiles
  • Technical Information Centers
  • Time Fuzes
  • United States

Fields of Study

  • Physics

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • ballistics.