,.. \ Figure 2 ..... lower elevating and lowering mechanisms Figure 1 The surface area of the set was 227.5 m 2 . The foundation consisted of iron frames mounted on steel tube supports covered with 22 mm wood paneling with needle felt glued on. In addition, various trapdoors as well as running grooves as trackways for two "racing cars" were installed. The racing cars were pulled by hand cables. A crater and two boulders, which rose up out of the floor, were made of polyester. A conventional harness and a second harness for raising and lowering a "parachutist" was installed. Two mobile cacti, Figure 4 Groundview, Sideview, and Frontview of Proscenium Stage ~. I -, ~ ~ .."'0:= F= b ~ ~ ~ (.) 0 Figure 3 Triangular Lattice Truss for Elevatable and Lowerable Reel-Operated Backdrop ~ = I ! = : a::: ~h .1-. o --====- 0 --.--- - ~~ ~ - I~======~I Volker Butzmann was a member of the technical direction team for the production.