A ServoBelt actuator is being used to rock a quarter scale model of the Crew Excursion Vehicle (CEV), the replacement for the space shuttle. Basically, the model goes in the biiiiig pool at NASA Johnson Space Center, and they can rock the lander as if in high seas. I think they can actually flip it over. I hope to get the follow-on work for the full size unit, though I don't think I'll be getting in it, burp..