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Title: Aerodynamic flail for a spinning projectile

Abstract

A flail is provided which reduces the spin of a projectile in a recovery system which includes a parachute, a cable connected to the parachute, a swivel, and means for connecting the swivel to the projectile. The flail includes a plurality of flexible filaments and a rotor for attaching the filaments to the front end of the projectile. The rotor is located radially with respect to the spinning axis of the projectile. In one embodiment, the projectile includes a first nose cone section housing a deployable spin damping assembly; a second nose cone section, housing a deployable parachute assembly; a shell section, supporting the first and second nose cone sections during flight of the projectile; a mechanism for releasing the first nose cone section from the second cone section; and a mechanism for releasing the second nose cone section from the shell section. In operation of this embodiment, the deployable spin damping assembly deploys during flight of the projectile when the mechanism for releasing the first nose cone section from the second nose cone section are actuated. Then, upon actuation of the mechanism for releasing the second nose cone section from the shell section, two things happen: the spin dampingmore » assembly separates from the projectile; and the deployable parachute assembly is deployed.« less

Inventors:
 [1]
  1. (Albuquerque, NM)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
875253
Patent Number(s):
H776
Assignee:
United States of America as represented by United States (Washington, DC) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
aerodynamic; flail; spinning; projectile; provided; reduces; spin; recovery; parachute; cable; connected; swivel; means; connecting; plurality; flexible; filaments; rotor; attaching; front; located; radially; respect; axis; embodiment; nose; cone; section; housing; deployable; damping; assembly; shell; supporting; sections; flight; mechanism; releasing; operation; deploys; actuated; actuation; happen; separates; deployed; located radially; shell section; cable connected; /102/

Citation Formats

Cole, James K. Aerodynamic flail for a spinning projectile. United States: N. p., 1990. Web.
Cole, James K. Aerodynamic flail for a spinning projectile. United States.
Cole, James K. Mon . "Aerodynamic flail for a spinning projectile". United States. https://www.osti.gov/servlets/purl/875253.
@article{osti_875253,
title = {Aerodynamic flail for a spinning projectile},
author = {Cole, James K.},
abstractNote = {A flail is provided which reduces the spin of a projectile in a recovery system which includes a parachute, a cable connected to the parachute, a swivel, and means for connecting the swivel to the projectile. The flail includes a plurality of flexible filaments and a rotor for attaching the filaments to the front end of the projectile. The rotor is located radially with respect to the spinning axis of the projectile. In one embodiment, the projectile includes a first nose cone section housing a deployable spin damping assembly; a second nose cone section, housing a deployable parachute assembly; a shell section, supporting the first and second nose cone sections during flight of the projectile; a mechanism for releasing the first nose cone section from the second cone section; and a mechanism for releasing the second nose cone section from the shell section. In operation of this embodiment, the deployable spin damping assembly deploys during flight of the projectile when the mechanism for releasing the first nose cone section from the second nose cone section are actuated. Then, upon actuation of the mechanism for releasing the second nose cone section from the shell section, two things happen: the spin damping assembly separates from the projectile; and the deployable parachute assembly is deployed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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