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    Laser Propulsion and the Constant Momentum Mission

    Laser Propulsion and the Constant Momentum Mission


    We show that perfect propulsion requires a constant momentum mission, as a consequence of Newton's second law. Perfect propulsion occurs when the velocity of the propelled mass in the inertial frame of reference matches the velocity of the propellant jet in the rocket frame of reference. We compare constant momentum to constant specific impulse propulsion, which, for a given specification of the mission delta V has an optimum specific impulse that maximizes the propelled mass per unit jet kinetic energy investment We also describe findings of more than 50 % efficiency for conversion of laser energy into jet kinetic energy by ablation of solids.

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    Titel :

    Laser Propulsion and the Constant Momentum Mission

    Beteiligte:
    C. W. Larson (Autor:in) / F. B. Mead (Autor:in) / S. D. Knecht (Autor:in)
    Erscheinungsdatum :

    2003

    Format / Umfang :

    13 pages

    Medientyp :

    Report

    Format :

    Keine Angabe

    Sprache :

    Englisch

    Schlagwörter :

    Optics & Lasers , Rocket Propellants , Lasers , Propulsion systems , Conversion , Ablation , Optimization , Energy , Solids , Propellants , Missions , Kinetic energy , Inertial systems , Momentum , Rockets , Specific impulse

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    Larson, C. W. / Mead, F. B. / Knecht, S. D. et al. | British Library Conference Proceedings | 2004

    BENEFIT OF CONSTANT MOMENTUM PROPULSION FOR LARGE AV MISSIONS - APPPLICATION IN LASER PROPULSION

    Larson, Carl / Mead, Franklin / Knecht, Sean | AIAA | 2004

    Benefit of Constant Momentum Propulsion for Large Delta V Missions -- Applications in Laser Propulsion

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    Benefit of Constant Momentum Propulsion for Large Delta V Missions - Applications to Laser Propulsion

    C. W. Larson / F. B. Mead / S. D. Knecht | NTIS | 2004

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