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Abstract:
Robotic planetary missions use almost exclusively storable propellants. However, it is clear that the use LOX/LH2 and LOX/HC combinations will offer a tremendous payload gain for most robotic missions. The perceived complexity of cryogenic propulsion, the need of cryogenic propellants active refrigeration to eliminate boil-off losses and the high acceleration imparted to spacecraft structure by high thrust cryogenic engines have prevented the use of cryogenic propulsion for robotic missions. Elaborated thermal insulation techniques and the recent progresses in active refrigeration help to consider the use of cryogenic propulsion for interplanetary missions. The performance increase enable to consider new missions like Mars sample return without in orbit rendezvous or heavy rovers on Mars surface.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Conference paper |
| Pages: |
8 |
| Report Date: |
13 JUL 2005 |
| Report Number: |
A452644 |
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Keywords relating to this report:
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