Accession Number:

AD0491819

Title:

Stability of 90 mm Shell T3

Descriptive Note:

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1939-11-01

Pagination or Media Count:

14.0

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 130 at a muzzle velocity of 2800 fs, is 1.515. If the twist were reduced to 132, the stability factor would be 1.33, and the projectile would still be sufficiently stable. A twist of 130 is recommended.

Subject Categories:

  • Ammunition and Explosives
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE