Aerodynamic controllably vented pressure modulating drogue

Aeronautics and astronautics – Safety lowering devices – Parachutes

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244110R, 244142, 244145, B64D 1718

Patent

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049270990

ABSTRACT:
An aeronautical drogue having a canopy and support members connecting the canopy to a connector provides for essentially constant drag at variable speeds by aerodynamic pressure modulation through controllably venting the canopy by constructing the canopy of a plurality of separate elastic bands positioned side by side the elastic bands being connected at spaced intervals by flexible connections.

REFERENCES:
patent: 3011742 (1961-12-01), Gross
patent: 3127137 (1964-03-01), Downing
patent: 4117993 (1978-10-01), Palm et al.
patent: 4178706 (1979-12-01), Boyce
79-0467 Development and Initial Test Results of Parachutes with Automatic Inflation Modulation (AIM), Mr. David B. Webb, Member AIAA.

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