Advanced propulsion for LEO-Moon transport. 2: Tether configurations in the LEO-Moon system

Details Advanced propulsion for LEO-Moon transport. 2: Tether configurations in the LEO-Moon system Advanced propulsion for LEO-Moon transport. 2: Tether configurations in the LEO-Moon system

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992lbsa.conf...55a&link_type=abstract

In NASA. Johnson Space Center, The Second Conference on Lunar Bases and Space Activities of the 21st Century, Volume 1 p 55-59 (

Physics

Lunar Spacecraft, Space Transportation, Spacecraft Design, Spacecraft Propulsion, Tethering, Lunar Landing Modules, Orbit Transfer Vehicles, Oxygen, Tetherlines

Scientific paper

This brief work discusses a possible application of a tether as a dynamical element in a low Earth orbit (LEO)-Moon transport system, and is a part of the Cal Space study of that transport system. To be specific, that study concentrated on the downward transport of O2 from the Moon to LEO, where it is stored for use as a rocket propellant, thus reducing Earth liftoff mass requirements by a factor of about 8. Moreover, in order to display clearly the role of advanced technology, only one novel technology was introduced at a single node in the transport system, the rest being 'conventional' rocket transport. Tethers were found useful in several different roles: hanging from platforms in lunar orbits, as supports for elevators, spinning in LEO, or spinning in a tether transport orbit, an elliptical orbit with perigee at approximately 600 km. This last use is considered here. Presented are the usefulness of the tether, nature of the tether system, the apparatus needed to support, deploy, and control it, and a discussion of needed developments.

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