Guys, its shown on the link i posted above. It was Leo Loudenschlager's shark design. The gang at zivko finished the plane in July of this year, and it has a double stab/double rudder arrangement. They show how the tail works in the video. It has a small movable area, to allow for precision flying, and then the whole darn elevator halves rotate up to 75-80 degrees for what would have been 3d flight.

go to www.zivko.com and click on the news tab. from the news tab, look for leo's shark. Theres pics and some background story, and a video file (.wmv) that shows the plane. The bottom half of the rudder folds over 90 degrees on landing, to allow the tailwheel room to touch. There was alot of thought and engineering done on this plane, and they describe alot of it in the article.