XIII (f) Convert to WB-7/WC-130 operations as soon as aircraft can be made available, Thus was set in motion the sequence of events which led up to the operations known as MUSIC MAN and CROW FLIGHT as well as the air sampling operations which made it possible to detect foreign nuclear blasts; to determine theyield of those blasts, the efficiency of the device tested, and even the mechanical and physical means used to cause the detonation, KIWD During the summer and early autumn, 1960, tests of two nuclear powered reactors under Project ROVER, KIWI A-PRIME and KIWI IITwere conducted by the Atomic Energy Commission-Los Alamos Scientific Laboratory. Despite much and repeated delays, when the reactors finally operated, the B-57 crews of the 926th accomplished sampling missions with no operational difficulties For the sampling of KIWI A-PRIME, a trail formation, race-track pattern sampling technique was used. Following the firing of the first jet-assisted takeoff, the airborne control aircraft orbiting in the area adjacent to the reactor test cell informed the four sampler aircraft to commence the sampling operation as soon as the exhaust cloud reached a minimum safe altitude, This was determined to be approximately 6,000 feet mean sea level, or 2,000 over the reactor. The jet-assisted takeoff fired in banks of five at one minute intervals for a period of nine minutes, During this time, the expelled hydrogen was ignited by the acetylene flare as it left the nozzle of the reactor and forced the exhaust and smoke 288 SWEH -2~003 6 APWL/ NO 3 7 wy Rt