DeepestSouth, I post this so you might gain an understanding of what happens should you loose control in an asymmetric situation. In this case the left engine failed and the pilot lost control of the situation, which should not have happened. As others have mentioned, the Halifax did have an inherent problem with the rudder design, and this may well have had hand to play.
David Thompson, photos of the Darlington headstones are on the link in my previous post.