could have been really serious was never completely decided. However, it was serious enough that there was no further argument on the subject and the tracking information was brought to the control point from then on and actually became somewhat of assistance to the bombadier in checking his tracking orbit. Once the operation was planned for a land base at Christmas Island, DASA requested the addition of a number of effects experiments which were accommodated where operationally feasible. For design and some number of operations they heme been trying to/provide past optical ) shutter eye glasses for airplane pilots warfare. to prevent flash blindness in Several stations were set up close to A site to test such devices and to obtain optical information for further design. DASA also wished to adfan experiment that caused a great deal of mental anguish on the part of the Task Force safety people, particularly the commander and the scientific deputy. This experiment was a continuation of a long series of measurements that had been made in past operations and was an attempt to measure the response of aircraft in flight to the thermal burstfrom large yield nuclear detonations. The aircraft to be used were B57 C's instrumented to observe skin temperature and stress.#®To perform the experiment, it was necessary to fly a B57 right through the shot point or immediately below or above just a few seconds before detonation (where a few seconds, in one case, | believe was as ears as 3). The possibility of miscalculation was a very distrubing one to the Task Force commander. We had to take into account the probable bombing accuracy of the B52, The timing of the B57 and other similar factors. It is clear that if the timing were not right, the pilot could get into an even worse situation by trying to abort. A variation of the experiment that was somewhat safer than proposed was eventually agreed upon. The final data obtained were perhaps the best data every obtained on this type of experiment but xke largely 19