Figure 2-7. Stage 2


2.2.4 Stage 3

 At this stage (Figure 2-8), the first layers, corresponding to the layers deployed in

stage one, are deployed.


Figure 2-8. Stage 3


2.2.5 Stage 4

 At this stage (Figure 2-9), the second two layers corresponding to the layers

deployed in stage three are deployed, hence the closed loop structure is completely

deployed.