The Navy has extended the deadline for Littoral Combat Ship proposals from competitors General Dynamics and Lockheed Martin from March 29 to April 12, according to a notice posted yesterday on the Federal Business Opportunities Web site. The March 2 amendment to the January request for proposals does not specify a reason for the extension. The sea service announced last year that it would choose between Lockheed's steel monohull LCS design and GD's aluminum trimaran hull before the end of...