A flight t' 2000ft AGL o' an Armadillo Aerospace "Mod" VTVL rocket, with a shiny new actuated roll vane, 2010/06/22. Well, blow me down! Rather than usin' cold gas thrusters t' move t' vehicle around t' vertical axis (roll), an aerodynamic surface is actuated t' provide roll. In t' split screen, it's t' aluminum plate on t' right; t' camera is pointed straight up. T' view on t' left is lookin' straight down, shiver me timbers, t' show t' roll orientation over time.