Both an all-parachute recovery system and a hybrid parachute-retrorocket recovery system for a one-million-pound booster are evaluated in order to determine what parachute sizes and number in a cluster are required for an all-parachute system to provide impact velocities of less than 100 ft/sec and in order to determine whether the hybrid system permits a weight reduction over an all-parachute system. A minimum-weight hybrid decelerator system using Kevlar materials for a cluster of three parachutes with two stages of reefing is analyzed. Major conclusions are that for an impact velocity of less than 100 ft/sec the hybrid decelerator system is lighter in weight, and that the use of Kevlar rather than Nylon material results in hybrid decelerator system weight savings of over 40% for impact velocities in the range 60-30 ft/sec.


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    Title :

    Evaluation of all-parachute and hybrid /parachute-retrorocket/ recovery systems for a one-million-pound booster


    Contributors:

    Conference:

    Aerodynamic Deceleration Systems Conference ; 1975 ; Albuquerque, NM


    Publication date :

    1975-11-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English