BY Co | -Il- eas operation and one possible B-57 aircraft will be needed for any overs 's to take care of Livermore. breakdown Is that 4 of these would be B-570 t altitude range and the other requirements in Xkx&& +he 55 to 65,000-foo give dual shot sampling 4 aircraft would?B-57B's. This array would d Including surface, capability for ‘2 shots within a 24 hour perio 0 feet altitude. Further it subsurface and air bursts up to 40 +o 45,00 continued economical use is noted that after the beginning of 1960 the of support and maintenance. of B-57's may be in question due to problems thought being given The 4950th is studying these problems with the sary. - . to planning for a replacement system if neces The 4926th Test work associated with Squadron inzmr conjunction with LASL is doing artous parts of the rehabilitating ,reconditioning calibratingjetc.v a sampling system for the aircraft. SN The next program letter from Teller following the beginning of the moratoriun, dated25March 59,_st states "It is yet too early to evaluate accurately the effects of the test moratorium on the Livermore laboratory. Nor is it possible to predict how fast the science of nuclear weapons will progress if the limitations are to continue. New ways are continuing to be explored that will allow weapons technology to advance even without testing, but it is uncertain at what reduced rate new ' models of weapons can enter production and stockpile once the backlog of current committments is met. It is certain that if the moratorium continues, weapons will proceed at a muchslower pace than that which was achieved in the past two years when testing was at its peak. The plans for future weapons development at Livermore include new techniques and facilities which will, in some small measure, offset the loss of the testing capability. Df " As for test readiness,3