In this chapter we presented the four basic techniques for RCS reduction. Of the four, the use of shaping and radar absorbers are by far the most effective. As the design and use of RAM is covered in detail in Chapter 8, this chapter focuses on the fundamentals of shaping for RCSR. Shaping typically is available only for systems still in the design stage, because it can seldom be exploited for vehicles already in production. But, in those cases where shaping can be applied, it is the most effective method available for RCSR.