"e | - -o . - - - . noe _ = Copy No.” 4 of TOP. SECRET Sd nner a LTRS SS EE ee r=tee | Srna reeo 16 Series A. : Byauthority”of:UySoAton c Energy PART III WEAPONS WEAPONS PRODUCTION . 1, The production of nuclear weapons in the July-September quarter was 22 percent below forecast. Among the individual pro- grams, the Mark 25 warhead for the Genie missile and the Mark 28 Class D thermonuclear bomb were furthest behind schedule, The lag in these programs resulted from difficulties encountered with the newly designed PELETED However, pro- duction during September improved generally, and at the end of the month it appeared that the production lag for all programs would be overcome by January 1959, and that the previously reported forecast of the number of nuclear weapons in stockpile by June 30, 1959, would be met, 2. New weapons first produced for stockpile during the ~~, quarter were: BY AUTHORITY oF DATE BY CLASH. FICATION CANCEL LED OR Cid IGHD TY 4 . a. The Class D thermonuclear bomb, Mark 28 Yl, with a yield of’ Li [and a weight of 2,000 pounds, pb b. The Mark 49 Yl thermonuclear warhead for the Intermediate Range Ballistic Missiles, Jupiter and Thor, with a yield of pricy , ‘and a weight of 1,600 pounds, and c. The Class D thermonuclear warhead, Mark 21s for the Regulus and Rascal missiles with a yield of! 7:7 <3 and a weight of 2,800 pounds. bolas she