Figure 5. Experiment E2. The support effect with one median ventral pneumatic body was tested. One inflated balloon was tied with gauze bandages ventral to the segments and filled with air until a specific pressure was reached. 5.1. With a pressure of 0.15 bar, the curvature si = 370 mm and was strongest between the two proximalmost segments, whereas the other segments formed a straight line. 5.2. The increase of pressure to 0.3 bar caused the chain beam to curve dorsally. 5.3. With a pressure of the balloon of 0.15 bar, 45 g iron powder were necessary to achieve siE1.