Barrel rolls are low G maneuvers so properly executed they shouldn't cause any of those things. My memory had the barrel roll as a 1G maneuver but wikipedia tel

Barrel rolls are low G maneuvers so properly executed they shouldn't cause any of those things. My memory had the barrel roll as a 1G maneuver but wikipedia tells me it gets up to 2-3g (probably to enter/exit the maneuver). Were you thinking of an aileron roll? I mean, if a 707 could do it safely in 1955[1] modern airliners should do just fine. (not that I support routine barrel rolls on airliners...) [1] http://www.youtube.com/watch?v=AaA7kPfC5Hk http://www.youtube.com/watch?v=AaA7kPfC5Hk