sorry, kurt and rpm, i know what a barrel roll is, i do know some of that acm stuff, believe it or not. but, i also know that when a plane goes from from straight(we'll say 90 degress) to .5sec later to nose360, then 180, then 270then 90 and everywhere in between in matter of a second is nothing resembling a barrel roll. it is done on the same axis, straight line, no roll what so ever. does look like a fish out of water tho, well close.