The Coast Guard is leaving the door open to potentially expanding its heavy icebreaker program to six ships, and the service is giving shipbuilders the option to include block-buy proposals in their bids. In early March, the integrated program office set up by the Navy and Coast Guard released the request for proposals for detail design and construction of up to three heavy polar icebreakers. While current plans call for procuring three heavy icebreakers followed by three medium icebreakers, the...
