EVA - Planned or Contingency

The reality of the space shuttle and the prospect of a permanent space station have caused system developers to look again at extravehicular activity (EVA) as a viable means of assembling and servicing orbiting space hardware.

This paper considers the kinds of analyses required to assess man's possible role in the extravehicular environment of these systems. The paper covers analysis and planning of EVA in the development, deployment, and operational stages of a program. Through examples, benefits in the form of cost avoidance and risk reduction are illustrated.