The Weapon Systems Factbook is organized into categories of weapon systems: air and missile defense; aircraft capability enhancements; aircraft procurement: fixed-wing aviation; aircraft procurement: rotary-wing aviation; aircraft procurement: unmanned systems; communications systems; ground systems; missiles and munitions; naval vessels and capabilities; nuclear forces; and space systems.
Unless otherwise noted, the cost and quantity figures used in this report are from the December 2016 SARs. Unlike other CSBA budget analyses, most cost figures in this report are shown in then-year dollars. In addition, in some cases, the SAR does not include a complete funding projection for the program, as noted throughout the report.