WEAPONS DEVELOPMENT 3. A feasibility btudy was completed and the Department of Defense requested a deVé lopment program for a warhead for the Falcon missile and. the Davy) Obdckett recoilless rifle and other weapons in the Battle Group Atomic Weapon System. hy A aévelopment program was estabiished at the request of the Department of Defense for a laydowm version of the Class C thermonuclear bomb, TX-46, 5. As a result of Operation HARDTACK tests, the AEC determined / that the Eee device will be weaponized for the Class B thermonuclear bomb, TX-41, with yields of, for the conventional version and. fetried tid \for the "clean" version, 6. The pfer test of the XW-35 wavhead for Intermedi- ate Range and Intercontinental Ballistic Missiles »esulted ina yield of mon ry pensa bw bie Inasmuch as a slightly better yield can be obtained in the same weight class using the Mark 49 warhead with. a) the XW-35 progrem was canceled. 7. The weapons laboratories, Ios Alamos Scientific Labora- tory, Sandia Laboratory, and University of California Radiation laboratory at Livermore, were informed that the President directed that every effort should be made to maintain the vigor of the laboratories and weapons development progress during the period of the nuclear weapons tests suspension. 8. New light weight weapons, now in research or development, require detonators which will meet severe weight and space limitations, ool ay < -* * (See also Part II of