Routine travel to and from Mars demands an efficient, rapid, low cost means of two-way transportation. To answer this need, we have invented an architecture consisting of two spinning tether systems in highly elliptical orbits about each planet. At Earth, a payload is picked up near periapsis and tossed a half-rotation later, still near periapsis, at a velocity sufficient to send the payload on a high-speed trajectory to Mars. At Mars, it is caught near periapsis and is released a short time later on a suborbital reentry trajectory. The system works in both directions and is reusable. Energy and momentum lost by the throwing tethers can be restored either by catching incoming payloads or by propellantless tether propulsion methods. Tethers with tip velocities of 2.5 km per second can send payloads to Mars in as little as 90 days if aeroslowing is used at Mars. Tether-to-tether transfers without aeroslowing may be accomplished in about 130 to 160 days. Tether systems using commercially available tether materials at reasonable safety factors can be as little as 15 times the mass of the payload being handled.


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    Title :

    Mars-Earth rapid interplanetary tether transport (MERITT) architecture


    Contributors:

    Conference:

    Space Technology and Applications International Forum - 2001 ; 2001 ; Albuquerque, New Mexico


    Published in:

    Publication date :

    2001-02-02


    Size :

    7 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Mars-Earth Rapid Interplanetary Tether Transport (MERITT) Architecture

    Forward, R. L. / Nordley, G. D. / Institute for Space and Nuclear Power Studies | British Library Conference Proceedings | 2001


    Mars-Earth Rapid Interplanetary Two-way Tether Transport (MERITTT) Architecture

    Nordley, Gerald / Forward, Robert L. / Hoyt, Robert P. | AIAA | 2002