Technology needs for lunar and Mars space transfer systemsThe determination of appropriate space transportation technologies and operating modes is discussed with respect to both lunar and Mars missions. Three levels of activity are set forth to examine the sensitivity of transportation preferences including 'minimum,' 'full science,' and 'industrialization and settlement' categories. High-thrust-profile missions for lunar and Mars transportation are considered in terms of their relative advantages, and transportation options are defined in terms of propulsion and braking technologies. Costs and life-cycle cost estimates are prepared for the transportation preferences by using a parametric cost model, and a return-on-investment summary is given. Major technological needs for the programs are listed and include storable propulsion systems; cryogenic engines and fluids management; aerobraking; and nuclear thermal, nuclear electric, electric, and solar electric propulsion technologies.
Document ID
19910059531
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Woodcock, Gordon R. (Boeing Co. Huntsville, AL, United States)
Cothran, Bradley C. (Boeing Co. Huntsville, AL, United States)
Donahue, Benjamin (Boeing Co. Huntsville, AL, United States)
Mcghee, Jerry (Boeing Defense and Space Group Huntsville, AL, United States)