prepared after the operation. For histeurical and .Qpurt purposes, s:proximately 3500 black and white still negatives were exposed during the cperation, Very High Altitude Carrier Systems Program 9 also provided support for the three high altitude detonations on Hardtack: Yucca (Eniwetok-Bikini area, SRBburst height about 90,000 ft), Teak (Johnston Island, (Johnston Island rst height~about am) and Orange rst height abogy t): ED For Shot Yucca, Project 9.2a supplied the warhead, the fuzing and arming equipment, the radio-command system, and function monitoring for the as 7 Project 9.2b provided the carrier to deliver the device and associated instrumentation to altitude. This was a 128-ft, 2-mil, polyethylene balloon. Test flights from various launching sites conducted during the 18 months preceding the shot had shown that launch from an aircraft carrier, with a deck wind velocity of nearly zero, was the most reliable method, The USS Boxer (CVS-21) departed Bikini Atoll at 1900 on April 27, and at 1125:05 on April 28 the balloon was launched. The total weight of the “ system was 1295.5 lb, including a payload of 761.5 lb. The latter consisted of the device and five canisters containing instrumentation for measuring pressures, thermal and gamma radiation, neutron flux, and electromagnetic pulse. The device was suspended 568 ft below the balloon and the canisters from 750 to 3000 ft below the device. The device. was detonated at 1440 on . April 28. Because of command transmitter failure prior to shot time, no effects data of significance was received from the suspended canisters; however, participating aircraft did obtain data for determining energy partition and extending scaling laws to include low yield detonations up to 100,000 ft. For shots Teak and Orange, Project 9.3a was assigned the task of gTED readying and firing the two Redstone missiles, each equipped with a warheads. Each missile was also equipped with four instrumented pods mounted on the surface of the thrust unit; these were explosively expelled during the powered phase of the trajectory so as to be in pre-determined positions at burst times. The Redstone missiles were adapted specifically for these shots, and several flight tests of the modifications had been conducted. ome “> On shot Teak, the burst did not occur where intended because of fail- ure of the missile to program. From preliminary data, a vertical trajectory was assumed. Lift-off was at 2347:14.99 and burst occurred at 2350:05.597 LST on July 31. On shot Orange, the missile programmed about as planned. Lift-off was at 2327:34.498, and burst occurred at 2330:08.607 LST on August 11. On both shots, all except necessary key personnel were evacuated to ships during the morning and afternoon of shot day. Indications of missile performance were provided the Missile Flight Safety Officer, as well as means of taking corrective action in the event of malfunction, i.e., command destruction of the fuel tanks and, in the case of Orange, a means of preventing arming of the warhead. Quince and Fig Results (Programs 1,2, and 8) + The Quince event, planned as a es 37 Ab w LUN ge a