Db. “When Ready” Concept. As testing is conducted farther out into space, the means for obtaining diagnostic and effects data will be increasingly limited to instrumentation contained within the device carrier and/or to measurements from satellites. This is because the problems of achieving reliable and acceptable limits, with regard to time-space, become more and more difficult as greater testing altitudes are attempted. As we move outward in space to conduct testing it will be, in most instances, less feasible and suitable to take measurements from or near the earths surface. From an operational and organizational view-point, this means greatly reduced requirements for ships, aircraft and people which in turn means a smaller testing organization. Because of the large dollar costs and the magnitude of technical preparations associated with high altitude testing it will become increasingly important to obtain the naximm amount of information from each shot. t seems reasonable to conclude that we will not test numberswise as in past surface test series, but rather on a more limited scale for specialized purposes. Reduced requirements for major items of military support i.e., aircraft, ships, etc., and the need for less military personnel (other than scientific) indicates that a small planning organization can be augmented by TDY forces of the Army, Navy and Air Force to an operational level well within the technical and logistical lead times of possible future high altitude tests. This is particularly applicable if full advantage is taken of the inherent Army test support capability at Johnston Island. On the basis of the foregoing considerations, a small permanent test

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