The following comments are oS in comparing the two schedules: a. The interval between shots for a given test location; i.e., the Tare Complex, is the sum of the time required for re-entry, technical preparedness, design interaction, average weather delay (see discussions on veather following), and time lost, if any, for evacuation and re- entry for the firing of a shot somewhere else in the atoll. true for both Schedules I and II. b. This is In Schedule I, the time interval between shots of the small weapons program at the Tare Island complex is nominally ten days, which is perhaps longer than one might expect. This interval is necessary for planning purposes because of interruptions in attaining technical preparedness while trying, at the same time, to continue firing large shots in the northern part of the lagoon. All installations at Tare, for example, must be protected from water wave damage. The concept of the use of 50 foot stub towers is aimed at circumventing damage from such an effect. As pertains also to Schedule I, the firing of Events 2, 4, 6, 12, 13, 14, and 15 in the northern Bikini Lagoon sector, as well as the Tare shots, necessitates the evacuation of all fare personne) to Nan for protection from fallout. Shots greater than 5 MI, such as Schedule I Events 12, 13, 14, and 15 will mke complete atoll evacuation necessary while firing. Ce Also in Schedule I, it is to be noted that the time interval between large shots in the northern lagoon is 10 days. The yields mke the inclusion of the average Bikini weather delay for these shot inter- vals necessary. a. The interwoven schedule of large and small shots at Bikini would pre- serve the dual large and smll shot capability, but, in the case of one of each being in readiness, the large yield or most difficult shot would take precedence, No insertion of BOD shots is shown in Schedule I. It is believed that Bikini Atoll is best adapted for these shots even if Taongi is unavail- able and it becomes necessary to insert them into a schedule typical of Schedule I. The information available at the present time indicates that there my be considerable difficulty in getting either of the ultra high altitude rocket shots ready for a 1 May ready date. Both the 100,000 foot and 250,000 foot rocket shots require installation of manned diagnostic rocket launchers et several points around the atoll. Even such July teed though the scope of this program is not firm, the inclusion of an effort in Schedule I between the indicated dates 1 May and 30 will be difficult indeed if uncontaminated areas must be guaran~ for the manned diagnostic rocket stations which are more or less equally distributed around the atoll. It is felt that the high altitude nuclear device vehicles themselves can be guaranteed uncontaminated launching sites at How or Nan Islands during all of the period enconpassed by Schedule I, The launching of the nuclear device carrying balloon from either of these islands seems feasible at any time between other shots during this period, ce «6G