Propulsion Aspects of Unmanned and Manned Lunar Landings
Direct vertical descent and descent from an intermediate<br />lunar parking orbit are discussed. The difference in philosophy between<br />langing a payload of instruments and of humans is considered in some<br />detail. The " human return to eartli &qu...
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
1963-06-01
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| Series: | Annals of Geophysics |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/5232 |
| Summary: | Direct vertical descent and descent from an intermediate<br />lunar parking orbit are discussed. The difference in philosophy between<br />langing a payload of instruments and of humans is considered in some<br />detail. The " human return to eartli " problem is separated from the<br />" mission success-failure " criteria.<br />Some anticipated performances are given in terms of payload ratio<br />for various propulsion-cehicle vcaling constants for botli forms of descent.<br />Manned descent from parking orbit is discussed with respect to the<br />general problem of maximising the probability of human return. .Minimum<br />impulse, high safety and long low approaches are mentioned. In conclusion<br />the problem of abort during the final powered descent is considered for<br />fixed and variable geometry vehicles. |
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| ISSN: | 1593-5213 2037-416X |