This gallery is from a Discovery Channel television show that tries to bust popular myths. In this episode, the theory of soldiers marching across a bridge in cadence can cause a bridge failure is put to the test.

You'll see the Kinetrol vane actuators were used in a very unique way. Kinetrol actuators were selected because they could be precisely controlled, so that all the "feet" would march in unison.

Click on the thumbnail image for larger view.