Two piloted simulations were conducted at NASA's Johnson Space Center using the Cooper-Harper scale to study the handling qualities of the Orion Command Module capsule during atmospheric entry flight. The simulations were conducted using high fidelity 6-DOF simulators for Lunar Return Skip Entry and International Space Station Return Direct Entry flight using bank angle steering commands generated by either the Primary (PredGuid) or Backup (PLM) guidance algorithms. For both evaluations, manual control of bank angle began after descending through Entry Interface into the atmosphere until drogue chutes deployment. Pilots were able to use defined bank management and reversal criteria to accurately track the bank angle commands, and stay within flight performance metrics of landing accuracy, g-loads, and propellant consumption, suggesting that the pilotability of Orion under manual control is both achievable and provides adequate trajectory performance with acceptable levels of pilot effort. Another significant result of these analyses is the applicability of flying a complex entry task under high speed entry flight conditions relevant to the next generation Multi Purpose Crew Vehicle return from Mars and Near Earth Objects.


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    Title :

    Orion Capsule Handling Qualities for Atmospheric Entry



    Conference:

    AIAA GNC/AFM/MST 2011 Joint Conference - (AFM) - AIAA 2nd Atmospheric Flight Mechanics ; 2011 ; Portland, OR, United States
    AIAA GNC/AFM/MST 2011 Joint Conference - (MST) - AIAA Modeling and Simulation Technologies ; 2011 ; Portland, OR, United States
    AIAA GNC/AFM/MST 2011 Joint Conference - (GNC) - AIAA Guidance, Navigation and Control ; 2011 ; Portland, OR, United States


    Publication date :

    2011-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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