Systems Engineering 



Recommendations 



• Systematic studies of habitability requirements should be considerably 

 expanded to identify outstanding issues and to provide information 

 applicable to long-duration space flight and the potential success of the 

 Space Station as a habitable vehicle. 



— This process should incorporate available data from the Astronaut Office 

 and from personnel involved in Antarctic expeditions, submarine 

 missions, and Soviet space flight. 



— Additional information should be elicited from ground-based 

 simulations, as well as underseas habitats and polar stations. 



• A systematic research program should be established to utilize fully the 

 unique capabilities of the Space Station in delineating human habitability 

 factors for long-duration space missions. 



• NASA should allocate funding each year for updating Man-Systems 

 Integration Standards. The information in these volumes will be important in 

 meeting the requirements of long-duration missions. 



Space Adaptation/Gravity Environment 



Findings 



• Long-term missions require that crew members adapt and readapt successfully 

 to varying gravity conditions. 



• Scientific evidence is lacking at present to demonstrate that the provision of 

 partial gravity may prevent or reduce the effects of exposure to microgravity. 



Recommendation 



• Research should be conducted to identify the requirements for designing a 

 large, rotating spacecraft that is safe and habitable. 



Reference List 



1. Alexander, Joseph K., Philip C. Johnson, Percival D. McCormack, David C. 

 Nagel, Sam L. Pool, M. Rhea Seddon, Joseph C. Sharp, and Frank M. 

 Sulzman. January 1987. Advanced Missions with Humans in Space. No city of 

 publication given: National Aeronautics and Space Administration. 



2. National Aeronautics and Space Administration. March 1987. Man-Systems 

 Integration Standards. Vol. 1. NASA-STD-3000. Houston, TX: Johnson Space 

 Center. 



3. National Aeronautics and Space Administration. Johnson Space Center. 1987. 

 Space Station Program: Definition and Reqiurements. JSC-3000. Houston: 

 Johnson Space Center; Cohen, M.M., and S. Bussolari. 1987. EVA Access 

 Facility: A Comparative Analysis of Four Concepts for On-Orbit Space Suit 



89 



