Navy DDG-51 and DDG-1000 Destroyer Programs: Background and Issues for Congress [April 7, 2017] [open pdf - 903KB]
From the Summary: "The Navy has been procuring Arleigh Burke (DDG-51) class Aegis destroyers since FY1985. The two DDG-51s requested for procurement in FY2017 are to be the 75th and 76th ships in the class. The 10 DDG-51s programmed for procurement in FY2013-FY2017 (in annual quantities of 3-1-2-2-2) are being procured under a multiyear-procurement (MYP) contract. One of the DDG-51s funded in FY2016 is to be the first of a new DDG-51 design variation called the Flight III design, which is to incorporate a new and more capable radar called the Air and Missile Defense Radar (AMDR). As part of its action on the Navy's FY2016 budget, Congress provided $1 billion in unrequested procurement funding to help pay for a DDG-51 that would be in addition to those being procured under the 10-ship MYP contract for FY2013-FY2017. The Navy, in its budget submission, notes this additional $1 billion in funding for the DDG-51 program, but does not show the additional DDG-51 in its shipbuilding plan. The $433 million in procurement funding that would be needed to complete the cost of this additional DDG-51 is, however, included as the second item on the Navy's FY2017 unfunded requirements list (i.e., the list of FY2017 programs that the Navy desires, but for which it did not have sufficient funding in FY2017)."
CRS Report for Congress, RL32109
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html