Critical engineering factors in the design and development of space systems

The paper deals with the basic concepts underlying the design and development of systems for space operations. The importance of reliability and weight as system parameters, particularly in regard to cost, performance and development time schedules are discussed. The peculiar needs of a space system are shown to affect the design philosophy, the ground test programme and the developmental approach to an optimum system. Some suggestions are made regarding the techniques and procedures to be used in design and development to ensure that the system will operate satisfactorily on its mission in the space environment. The paper also points out certain work that is needed in basic research before we can design the reliable space systems that will enable our conquest of space.