The drum brake to secure the main propulsion shaft of the Louis St. Laurent was made of cast iron and suffered unrepairable cracking. CME ruled out repair and instead offered a redesign in a steel alloy weldment, rim would be rolled of 3″ plate made of 2″ plate. Weldment halves were then milled, bolted, dowel pinned and machining was completed with two halves bolted as a full assembly. The weldment allowed the ship to re-enter service and was much faster and less expensive than creating patterns and recasting.