The U.S. Marine Corps (USMC) is facing a critical shortage of heavy-lift aircraft (HLA). In addition, current weapon systems are heavier than their predecessors, further challenging the USMC's current CH-53E HLA. To address the emerging heavy-lift requirements, the USMC initiated the CH-53K HLA Replacement program, which has experienced significant cost increase and schedule delays since entering development in 2005. This report: (1) determines how the CH-53K's estimates of cost, schedule, and quantity have changed since the program began and the impact of these changes; and (2) determines how the CH-53K's current acquisition strategy will meet current program targets as well as the warfighter's needs. Illus. A print on demand report.