History Channel Documentary just shot a big question mark in the grounding theory of the Titanic with the actual bilge keel showing no visible signs of iceberg damage across the entire main beam section of either side! Since the bilge keels would have been bent or peeled back if the Titanic slip up on the submerged portion of the berg to receive any damage then you need to reevaluate this theory. I have seen actual photographs of several bergs that have no underwater shelfs on one side or the other. So I still return to the damage to side panels as the failing element of the design.