"Wy MCHAWK) Project 21.2 - Sampling ~ R. Patzel The Air Force Special Weapons Center supplied five B-57, one of which acted as control plane. B-57 aircreft were used instead of F-84Gs due to the operating altitude. Aircraft 502 500 495 £96 504 Time after shot Hours Alt. Collected Thousand Feet Fission One Wine Pilot Radiation mr 1.45 - 2.30 45 = 16.8 11.2 x 1049 2,828 1.45 2.40 3.00 2,50 19.7 52 = 53 49 - 50.5 LB —— 19.5 9.7x10'? 14.5 x 10°? 12.6x 107° 13.8x10'? 3,002 3,275 —2, 550 2,308 The cloud op ~ ~ - 1.55 3.15 3.50 3,30 Nj ‘ohawk) topped at 65,000 feet. The base of the cloud was obscured by lower cloud cover, The semple size collected on this device was very good. A sufficient amount of fissions were collected to make all measurements necessary, and the success of this project can be attributed to the cooveration and interest shown by the Air Force personnel, -é61-