SAM-D firing section, which is composed of Radar Unit (right), Weapon Control Unit (left), Prime Power Module (center) and Launcher Unit (behind), all of them are mobile, put on the wheeled chassis
Department of the Army
<a rel="nofollow" class="external text" href="https://books.google.com/books?id=Wb8h9dFIn-oC&amp;pg=PA3730">Fiscal Year 1973 Authorization for Military Procurement</a>, Pt. 6, Page 3730