capable of flying at least 100 miles at these altitudes, Colonel Gavin asked the Wright Air Development Center for information on guided missiles, test vehicles, or target drones which might fit these unmanned sampling requirements. Any such vehicle, he pointed out, would have to be capable of recovery over land. Lieutenant Colonel Richard S, Nugent, the colonel's administrative assistant, hand-carried the request to Wright Fieldand wag able to pet some preliminary information. Rocket vehicles would be difficult to adopt because of the problem of attaching adequate samplingdevices to them, Also, they would be difficult to recover, especially when ‘operating in the Pacific Proving Grounds.” Joint Task Force SEVEN was also in favor of unmanned sampling devices, Brigadier General A. R. Walk, U.S, Army, Chief of Staff of the Joint Task Force, suggested that Los Alamos and the Center investigate the potential- ities of the Q-2 drone and the drome B-l7 aircraft used on BRASS RING, Center officials pointed out, however, that the Q-2 drone could climb very little higher than the F-84G sampler aircraft and, because the advantage of the drone B-,7 over available samplers was not very great, the logistics of operating at the Pacific Proving Grounds would be exorbitant, ?° Therefore, no serious attempt was made to secure unmanned samplers, However, while preparing a final report for CASTLE, General Estes asked the University of California Radiation Laboratory, at Livermore, California, what they | thought an unmanned sampler should be Like,” Professor Kenneth Street and Roger Batzel, sampling experts from the *y program to develop a prototype long-range automatic bomb delivery system, 96 SWEH-2-003); / AFWLZHO WO uM wis