More Subsystem Design

IT is difficult to say which subsystem on board a spacecraft is the most important, or indeed rank them in order of importance. Subsystem engineers invariably say that their own piece of territory on the spacecraft is the most important. Table 7.1 in Chapter 7 lists the subsystems; a serious failure of any one of them will result in the end of the spacecraft mission. So there is some validity to what subsystem engineers say.

This chapter discusses the remainder of the subsystems, focusing on the main factors that drive their design. As a consequence, I should warn you that this chapter is longer than previous ones. We start with the propulsion subsystem simply because it follows logically from the discussion of orbits in Chapters 2, 3, and 4.

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