Rotating flexible drag mill

Title: Rotating flexible drag mill

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Abstract

A rotating parachute for decelerating objects travelling through atmosphere at subsonic or supersonic deployment speeds includes a circular canopy having a plurality of circumferentially arranged flexible panels projecting radially from a solid central disk. A slot extends radially between adjacent panels to the outer periphery of the canopy. Upon deployment, the solid disk diverts air radially to rapidly inflate the panels into a position of maximum diameter. Air impinging on the panels adjacent the panel slots rotates the parachute during its descent. Centrifugal force flattens the canopy into a constant maximum diameter during terminal descent for maximum drag and deceleration.

Inventors:: Pepper, W.B.

Issue Date:: 1984-05-09

OSTI Identifier:: 6063087

Application Number:: ON: TI85005737

Assignee:: Dept. of Energy SNL; EDB-85-048156

DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; PARACHUTES; DESIGN; REENTRY VEHICLES; SPACE VEHICLES; VEHICLES; 420200* - Engineering- Facilities, Equipment, & Techniques

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                    Pepper, W.B. Rotating flexible drag mill.  United States: N. p., 1984. 
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                    Pepper, W.B. Rotating flexible drag mill.  United States.

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                    Pepper, W.B. Wed .  
        "Rotating flexible drag mill".  United States.

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@article{osti_6063087,

  title        = {Rotating flexible drag mill},

  author       = {Pepper, W.B.},

  abstractNote = {A rotating parachute for decelerating objects travelling through atmosphere at subsonic or supersonic deployment speeds includes a circular canopy having a plurality of circumferentially arranged flexible panels projecting radially from a solid central disk. A slot extends radially between adjacent panels to the outer periphery of the canopy. Upon deployment, the solid disk diverts air radially to rapidly inflate the panels into a position of maximum diameter. Air impinging on the panels adjacent the panel slots rotates the parachute during its descent. Centrifugal force flattens the canopy into a constant maximum diameter during terminal descent for maximum drag and deceleration.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1984},

  month        = {5}

}

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