Naval Air Systems Command last week held a pre-proposal conference for the VXX Presidential Helicopter Replacement Program, emphasizing affordability and clearing another hurdle for as many as four industry teams who are to submit proposals later this summer. The Navy last month launched the competition for the program, issuing a request for proposals for the VXX that scaled back the requirements and price tag of the previous VH-71 program, which was terminated by the Pentagon in March 2009 due to...