is more important than whether that's a DDG 1000 or a DDG 51". On 19 August 2008, Secretary Winter said that a third Zumwalt would be built at Bath Iron Works, citing concerns about maintaining shipbuilding capacity. House Defense Appropriations Subcommittee Chairman John Murtha said on 23 September 2008 that he had agreed to partial funding of the third DDG-1000 in the 2009 Defense authorization bill. A 26 January 2009 memo from John Young, the U.S. Department of Defense's (DoD) top acquisition official, stated that the per ship price for the Zumwalt-class destroyers had reached $5.964 billion, 81 percent over the Navy's original estimate used in proposing the program, resulting in a breach of the Nunn–McCurdy Amendment, requiring the Navy to re-certify and re-justify the program to Congress or to cancel its production. On 6 April 2009, Defense Secretary Robert Gates announced that DoD's proposed 2010 budget would end the DDG-1000 program at a maximum of three ships. Also in April, the Pentagon awarded a fixed-price contract with General Dynamics to build the three destroyers, replacing a cost-plus-fee contract that had been awarded to Northrop Grumman. At that time, the first DDG-1000 destroyer was expected to cost $3.5 billion, the second approximately $2.5 billion, and the third even less. What had once been seen as the backbone of the Navy's future surface fleet with a planned production run of 32 has since been replaced by destroyer production reverting to the Arleigh Burke class after ordering three Zumwalts. In April 2016, the U.S. Naval Institute stated that the total cost of the three Zumwalt ships is about $22.5 billion with research and development costs, which is an average of $7.5 billion per ship. Construction In late 2005, the program entered the detailed design and integration phase, for which Raytheon was the Mission Systems Integrator. Both Northrop Grumman Ship Systems and General Dynamics Bath Iron Works shared dual-lead for the hull, mechanical, and electrical detailed design. BAE Systems Inc. had the advanced gun system and the MK57 Vertical Launching System (VLS). Almost every major defense contractor (including Lockheed Martin, Northrop Grumman Sperry Marine, and L-3 Communications) and subcontractors from nearly every state in the U.S. were involved to some extent in this project, which was the largest single line item in the Navy's budget. During the previous contract, the development and testing of 11 Engineering Development Models (EDMs) took place: Advanced Gun