Control of aircraft during sampling operations required exactness and” pilot coordination considerably above the level of otherwise competent pilots, According to Mr. Paul W. Cuthals of Los Alamos, Pilots with the ability to succeed in sampling missions . were difficult to find. It was necessary for them to be adept at piloting ander unusual, dangerous, and difficult conditions, Additionally, they had to possess the ability to receive radioed instractions,-make taped recordings of instrument readings, be alert for excessive radiation and a myriad of other details simultaneously. I remember during the OAK event, a field grade officer command pilot, volunteered to get an early sample It was his first-sampling mission, As he entered the cloud, in a normal voice, reported an "R" reading of 30. -In rapid * hey succession his "R*® reading reports came over the radio~-each report higher in radiation intensity and each report in a . voice of higher pitch. As his instruments. passed 100 roentgens per hour readings, his voice was pitched so high that it didn't seem possible that a man was transmitting. Of all the sampling pilots employed, to my knowledge, was the only one who was not a command pilot. Most pilots with less experience and proven ability were simply overwhelmed~-so badly that they could not -fimction satisface torily--by the awesomeness of the cloud interior,. Sampler pilots and controllers found detailed requirements and methods given in "Control and Sampling Procedures for Eager Beaver Aircrafts? Tey found instructions for air filters used, the bags for collecting gas samples, and a discussion of water samples in "Sampling Methods «24 These instructions were incorporated in operation planning for the squadron, In 1953, an earlier approach to determining yield was directed toward the collection of valuable material from the cotaminated aircraft itself, In this test, scientists sealed the decontamination pod with a plastic compound, washed the contaminated aircraft with citric acid soluticas, 213 SWEH-~2-003h ff AFWU + 4c