THE EFFECTS OF MAGNUS MOMENT AT SUBSONIC VELOCITIES ON THE 105MM MOTAR PROJECTILE T-53

Abstract

An analysis of the performance of the 105mm mortar shell T-53 with T10E5 fins, at subsonic velocities, is presented and discussed. Emphasis is focused on the effect of Magnus moment. This shell, representative of one type of fin stabilized projectile, has an eight-bladed fin assembly with a span of one caliber, and has a low-drag, streamlined body. The performance of the T-53 is of particular interest, because little is known about Magnus in the subsonic region. The Magnus moment derivative varied from 2.3 with a 13-degree spin per ft. to 4.5 with a 27-degree spin per ft. These values are several times larger than those experienced by spin stabilized projectiles. It was found that the static moment derivative was also a function of spin.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0262877

Entities

People

  • Maynard Piddington

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Assembly
  • Drag
  • Fin Stabilized Ammunition
  • Free Flight
  • Jet Propulsion
  • Low Drag
  • Mach Number
  • Manufacturing
  • Mortar Ammunition
  • Mortars
  • Munitions
  • Ordnance Laboratories
  • Physical Properties
  • Physics Laboratories
  • Projectiles
  • Weapons

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.