Definitely a great video. At 08:58 minutes there is 'pitching stability with T foils.' Every place I could find a view of the rudders, I could not see any T foils. I guess that is because the camera angles are nearly on the same plane as the edge of the foils.
Man, what a beautiful shot at 01:02 to 01:20! Slicing through the water like a hot knife on butter.
Alpha Omega Formula 14 cat GARY