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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Main Author: D. S. CARTON
Format: Article
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 1963-06-01
Series:Annals of Geophysics
Online Access:http://www.annalsofgeophysics.eu/index.php/annals/article/view/5232
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author D. S. CARTON
author_facet D. S. CARTON
author_sort D. S. CARTON
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description 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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spelling doaj.art-62c177bfae074dc7bf91dd5332077ba52022-12-21T17:32:44ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X1963-06-0116229530710.4401/ag-5232Propulsion Aspects of Unmanned and Manned Lunar LandingsD. S. CARTONDirect 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.http://www.annalsofgeophysics.eu/index.php/annals/article/view/5232
spellingShingle D. S. CARTON
Propulsion Aspects of Unmanned and Manned Lunar Landings
Annals of Geophysics
title Propulsion Aspects of Unmanned and Manned Lunar Landings
title_full Propulsion Aspects of Unmanned and Manned Lunar Landings
title_fullStr Propulsion Aspects of Unmanned and Manned Lunar Landings
title_full_unstemmed Propulsion Aspects of Unmanned and Manned Lunar Landings
title_short Propulsion Aspects of Unmanned and Manned Lunar Landings
title_sort propulsion aspects of unmanned and manned lunar landings
url http://www.annalsofgeophysics.eu/index.php/annals/article/view/5232
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