Effects of Linear Velocities Caused by Gun Platform Motion on Gun Firing Accuracy

Abstract

Along with the mean velocity that takes a land or water vehicle from one place to another, there are six types of oscillatory motions, which are rotational-roll, pitch, and yaw; and translational-surge, sway, and heave. These six types of motion, as well as the mean vehicle velocity, cause linear velocities that add to the muzzle velocities of projectiles fired from guns located on a moving vehicle. Linear velocities imparted to a projectile fired from a moving platform influence the probability of hitting (PH) a target. These velocities are not usually adjusted by the gun stabilization system. At 2000m, it is shown for a typical platform motion that the Ph for a 25mm gun shooting at a 2.29 x 2.29 sq. m. target is lowered from .453 to .348. A method of modeling these aiming errors if uncompensated by the fire control system is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1984
Accession Number
ADB100637

Entities

People

  • Winston C. Chow

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Angular Motion
  • Computer Programs
  • Computers
  • Control Systems
  • Coordinate Systems
  • Dead Reckoning
  • Fire Control Systems
  • Flat Trajectories
  • Gun Barrels
  • Inertial Navigation
  • Muzzle Velocity
  • Navigation
  • Projectiles
  • Stabilization Systems
  • Systems Analysis
  • Test And Evaluation
  • Weapons

Readers

  • Control Systems Engineering.
  • ballistics.