Space Ecological Systems 1960–1975
There appears to be a great deal of varied opinions in regard to the types of ecological systems required in manned space vehicles. In order to logically discuss designs of various ecological systems we must first establish some general operational requirements for the space systems concerned. The integrated space systems approach dictates the necessity of looking at each subsystem in relation to the whole. In most cases there are many different types of subsystems that could be used to satisfy a particular requirement. Therefore, in considering a total space ecological system the various combinations of subsystems actually number into the thousands. From a practical point of view, it would be impossible time wise and economically impractical to perfect this large number of systems. We must review the existing and proposed subsystems and rate them in such a manner so that we are able to meet the particular mission requirement. Ecological systems can be divided into three general mission or vehicle categories, i.e.,orbital systems, lunar systems, and interplanetary systems. If we consider our present propulsion capabilities then we are relegated to a fairly small manned orbital system and manned lunar and interplanetary systems would be essentially non-existent. If, however, we project our studies into the future when larger and/or more powerful propulsion devices (e.g. nuclear) will become available, then we can determine requirements for these three types of vehicles.
KeywordsEcological System Space Vehicle Order Item Cabin Pressure Crew Size
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