PRD -S eOl piIE nsIa po WPSEeRET— 1/ Weapons Production Facilities 18, The Pantex Ordnance Plant, Amarillo, Texas, has been producing cored H.E. charges for the Mark 6 Mod 2 weapons since December 1951. Casting of high explosive charges for the Mark 5 and Mark 7 weapons is scheduled to begin at Pantex in June 195e. 19. A number of factors combined to delay the operational date of additional facilities at the Iowa Ordnance Plant at Burlington. However, production of H.E, for the Mark 5 weapons and weapon assembly work have been started there, and H.E. production and assembly of the Mark 7 i8 now expected to start in June 1952. 20. Inspection and assembly of nuclear cores has started at the Rocky Flats Plant near Denver, Colorado. Full production capability for fabricating plutonium and uranium 235 weapon components is scheduled to be attained by April 1953. Fission Weapon Development 21. Chart No. 1 shows present development schedules for the principal new non-nuclear assemblies. Mark 10 (Gun-type bomb desired for airburst only) ee, The Department of Defense has postponed indefinitely the requirement for this weapon, and its development has been suspended. 1 Mark 11 | : 0 ge by (ha. ) 23.°Seventeen aircraft are being studied as possible carriers for this weapon. Ballistic dummies are being used for aireraft compatibility tests and air flow studies. Impact tests of scale models indicate that the Mark 11 warhead will have significantly I/7 Construction schedules are given in Appendix "B™ of the body of i wi) Y | the report. ans Dp ie aiass WP -SRCINIE, I

Select target paragraph3