6, YANKEE Shot A] - - DELETED = eee ee eeemet ne a. 3 Aircraft positioning for YANKEE and NECTAR, the Tara t “vas confirmed during an 18 April meeting at Parry Island. The YANKEE sampling effort consisted of one-half the normal capability, in order that the Air Task Group might be in a position to participate in another detonation within twenty-four to forty-eight hours. FB-36 and one WB-29 were used. Nine F-84's, one Each aircraft obtained a double sample. ELAINE TWO, the B-47 effects aircraft, aborted with a fuel leek, but the B-36, ELAINE ONE, accomplished its mission. The B~36 instrumentation system received the highest valuss of thermal and blast response measured by that aircraft in the entire operation on YANKEE, partly because estimated and actual yield were closely compatible. According to the crew, the red glow seen through the asbestos cur~ tains during the thermal phase was more intense than on any previous shot and was observed to have two distinct pulses. was observed in the aft crew compartment. AFWL/HO Considerable smoke The fire warning lights on