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Parametric Relationships of Factors Affecting Maintainability of Long Duration Manned Space Flights
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Abstract
There are many parameters which influence the maintainability of long duration manned space flights. This study involved a detailed investigation of the sensitivity of some of the major parameters on a typical 1975 near earth orbit spacecraft and mission. A mechanized analytical math model and a mission simulation model were utilized to evaluate the effects of: spacecraft system weight, volume and reliability; mission duration and resupply rate; and maintenance requirements on the total spacecraft requirements to achieve various probabilities of crew survival and mission success. Preliminary information developed in the NAS 2-3705 contract is presented. The results obtained to date are given, but specific conclusions will not be made until the study is completed.
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Jennings, H. and Trott, E., "Parametric Relationships of Factors Affecting Maintainability of Long Duration Manned Space Flights," SAE Technical Paper 670665, 1967, https://doi.org/10.4271/670665.Also In
References
- Douglas Aircraft Company “Report on Optimization of the Manned Orbital Research Laboratory System Concept” Douglas Aircraft Company Reports SM-46071 thru SM-46100 September 1964
- General Dynamics “Life Support System for Space Flights of Extended Time Periods” NASA Contractor Report CR-615 November 1966
- Trott E. P. “MARCEP - Maintainability and Reliability Cost Effectiveness Program” Paper presented at Fourth Annual Reliability and Maintainability Conference Los Angeles July 1965