Free-Flight Rocket Guidance with the Spinning Plug Nozzle

Abstract

The spinning plug nozzles (SPN) has a direct effect on the flow of the rocket exhaust gases. It acts like a gyroscope to restore the angle between the rocket axis and the spinning plug axis to zero. Thus, when the rocket body axis becomes misaligned with the plug axis, due to external moments acting upon the rocket, leading to inaccuracy, the SPN restores the alignment and minimizes the flight path error. In 1980, Battelle's Columbus Division completed a contract for Lockheed Missile and Space Company on the military application of the SPN. Battelle developed its SPIN (Spinning Plug In Nozzle) model to help evaluate the concept. The software was first applied to three different rocket types: the 2.75-in., the Multiple Launch Rocket System (MLRS), and the OATS. This paper summarizes this work at Battelle.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1982
Accession Number
ADP001071

Entities

People

  • A. H. Samuel
  • W. E. Judnick

Organizations

  • Battelle Memorial Institute

Tags

DTIC Thesaurus Topics

  • Angular Acceleration
  • Angular Motion
  • Center Of Gravity
  • Diameters
  • Exhaust Gases
  • Fire Control Systems
  • Indirect Fire
  • Miss Distance
  • Moment Of Inertia
  • Multiple Launch Rocket System
  • Munitions
  • Plastic Explosives
  • Self Propelled Guns
  • Time Intervals
  • Trajectories
  • Weapon Systems
  • Weapons

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Combustion and Flow Dynamics.
  • Missile Defense Systems.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Satellites
  • Space - Spacecraft Maneuvers