Project 9.1 = Technical Photography - J. G. James Three RB-50 sircreaft were scheduled for this event. Carter II normally positioned in the south quadrant, aborted the mission at 0300 due to mechanical difficulties. This abort was made prior to take off. Carter III was repositioned from the west quadrant to replece Carter II in order to insure triangulation photography. At completion of mission both aircraft commanders reported excellent photographie conditions from zero time to plus 45 minutes. Both aircraft completed three race-track photo runs. encountered light cloud cover st 20,000 feet at plus nine minutes. Carter I Because of this probable obscuration plus low embient light levels at this tine decision was made to return to the original zero starting point. This change in flight plan should not materially affect the overall cualitative results of the mission. No camera malfuncticns were reported and final results are expected to be good. Carter I proceeded to Enyu Island end conducted a damage survey. Observers reported no apparent water or tlast damage visible on the island. At plus 2 hours Carter I approached the ground zero area from the south quadrant to attempt a crater survey. Cne mapping run was made at 1700 feet, the mission was aborted when the eircraft entered a 12 r/hr level; however it is possible the exposed negatives may cover the critical area as defined ‘SS OOS in the mission requirement. - 72 =

Select target paragraph3