NASA's Ares I launch vehicle, consisting of a five segment solid rocket booster first stage and a liquid bi-propellant J-2X engine upper stage, is the vehicle that's been chosen to return humans to the moon, mars, and beyond. This paper provides an overview of the work that has taken place on the Ares I launch vehicle roll and reaction control systems. Reaction control systems are found on many launch vehicles and provide a vehicle with a three degree of freedom stabilization during the mission. The Ares I baseline configuration currently consists of a first stage roll control system that will provide the vehicle with a method of counteracting the roll torque that is expected during launch. An upper stage reaction control system will allow the upper stage three degrees of freedom control as needed. Design assessments and trade studies are being conducted on the roll and reaction control systems including: propellant selection, thruster arrangement, pressurization system configuration, and system component trades. Other vehicle considerations and issues include thruster plume impingement, thruster module aerothermal and aerodynamic effects, and system integration. This paper concludes by summarizing the process of down selecting to the current baseline configuration for the Ares I roll and reaction control systems.


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    Title :

    NASA Ares I Launch Vehicle Roll and Reaction Control Systems Overview


    Contributors:
    Popp, Chris (author) / Butt, Adam (author) / Sharp, David (author) / Pitts, Hank (author)

    Conference:

    AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit ; 2008 ; Hartford, CT, United States


    Publication date :

    2008-07-20


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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