Marine Corps Amphibious Combat Vehicle (ACV) and Marine Personnel Carrier (MPC): Background and Issues for Congress [June 1, 2017] [open pdf - 719KB]
"On January 6, 2011, after spending approximately $3 billion in developmental funding, the Marine Corps cancelled the Expeditionary Fighting Vehicle (EFV) program due to poor reliability demonstrated during operational testing and excessive cost growth. Because the EFV was intended to replace the 40-year-old Amphibious Assault Vehicle (AAV), the Pentagon pledged to move quickly to develop a 'more affordable and sustainable' vehicle to replace the EFV. The Amphibious Combat Vehicle (ACV) is intended to replace the AAV, incorporating some EFV capabilities but in a more practical and cost-efficient manner. In concert with the ACV, the Marines were developing the Marine Personnel Carrier (MPC) to serve as a survivable and mobile platform to transport Marines when ashore. The MPC was not intended to be amphibious like an AAV, EFV, or the ACV but instead would be required to have a swim capability for inland waterways such as rivers, lakes, and other water obstacles such as shore-to-shore operations in the littorals. Both vehicles are intended to play central roles in future Marine amphibious operations [...] The Department of Defense's FY 2018 Budget Request requests $340.5 million dollars for 26 ACV 1.1s. Potential issues for Congress include an increase in Marine Corps end strength and force structure resulting in an increase in overall ACV requirements and the challenges and risks associated with the Marines' new MPC/ACV acquisition strategy."
CRS Report for Congress, R42723
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html