Figure 23-13. The finished Box Kite
Once again, begin by constructing the sails. Split three 10″×13″ envelopes down both 13″ sides, resulting in three strips, each 10″ wide by 26″ long, plus the self-adhesive flaps (leave the flaps intact; see Figure 23-14).
Figure 23-14. The 10″×13″ envelope, cut and unfolded to a 10″ by 26″ piece of Tyvek
Use the self-adhesive flaps to connect the three envelopes in a single 78″ long strip, as shown in Figure 23-15. Do the same with three more envelopes, and then set the two sails aside.
Figure 23-15. A ...