REPORT ON THE EFFECT OF YAW ON ARMOR PENETRATION AND OF GUN TEMPERATURE ON YAW

Abstract

Firings were carried out in caliber .50 barrels of various twists of rifling in an effort to determine the optimum one but with no conclusive result. The armor penetration was determined as a function of the yaw and it was found that the effect of yaw was negligible on penetration as compared with its effect on accuracy at long ranges. It was found that a relatively large percentage of rounds fired in a hot gun with caliber .50 M1 Ball and A.P. boat-tail bullets have appreciable yaws whereas the M1 Tracer flat-base bullet and several modifications of this bullet give much smaller yaws. Recommendations are made for additional tests with modified bullets and a gun having a modified throat contour before any additional work is done on the determination of the optimum twist of rifling.

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Document Details

Document Type
Technical Report
Publication Date
Nov 11, 1936
Accession Number
AD0702229

Entities

People

  • H. H. Zornig
  • J. R. Lane

Organizations

  • Ballistic Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Ammunition
  • Armor
  • Armor Plate
  • Ball Ammunition
  • Cartridge Cases
  • Coefficients
  • Economic Development
  • Equations
  • Guns
  • Kinetic Energy
  • Machine Guns
  • Measurement
  • Muzzle Velocity
  • Orientation (Direction)
  • Standards
  • Thickness

Readers

  • Aerodynamics/Aeronautics.
  • Marksmanship and Weaponry.
  • Rocket Propulsion.