a ans ¢ 14,000! drone aircraft which went out of control at H - 2 minutes and crashed, Folloving the detonation all other aircraft proceeded to carry out their assisned missions without incident and without encountering appreciable radioactivity. The drone aircraft were landed at Eniwetok and all other aircraft returned to Kwajalein, The period following <-ray Day was a very busy one. Cloud tracker missions were flown until plus five day and the aircraft used for these missions always returned with exterior contamination thereby necessitating monitoring and personnel decontamination operations. Capt. Matthews and five additional monitors returned to Eniwetok on plus one day to supervise drone aircraft decontamination operations and campile data. ‘Two monitors were sent to Guam to handle a problem which arose there in connection with weather reconnaissance aircraft contamination. Additional operaticns in this period consisted of post X-ray Day photographic aircraft missions, compilation of mission data and monitoring of drone aircraft ground maintenance operations following the return of drone aircraft to Kwajalein on X-ray Day plus fives During a visit to Kwajalein on 24 April, Col, Cooney gave an informal talk to T.U. 7¢6e1 at which time he gave a summary of the results obtained on X-ray Day and stated some.of the problems anticipated for Yoke ‘ Operations. MN A final critique of the X-ray test shaved that the overall operation of T.U. 7e6e1 had been very good, The one flaw was that post X-ray Day VEY operations were somewhat disorganized because of unexpected missions which ¥. ¢ came up. RE nents for Yoke and Zebra tests. pte. ae : ‘c correct this all monitors were given post mission day assign— _91- = ae.