NCA EVENT _OPERATION REDWING 1. The INCA device was fired at 09564, 22 June 1956, from atop i. 200-fcot tower loceted on RUJORU Island (PEARL) of ENIVETOK Atoll. "he Domt cloud reached es ind clovd moved to the west at approximately 10 knots, The sten The stem ipocerec to contain more surfese debris than usual for tover stots of :iwvilar magnitude and height of turst, 2. The fallout forecast was based on a iip 3. Initial helicopter and P2V surveys verified the fallout fore- cast, Ehot island and the lagoon area to the vest were the only areas thich geve appreciable radiation reacings, 127 aircraft to a range of 100 miles. The cloud wes tracked by At 100 miles the cloud vas iporosinately 50 miles long and 15 miles across with an average intensity cf 50 mr/br at 10,000 feet altitude through INCA plus 3 deys. 5. Based on the radiological surveys of the atoll by helicopter end PZV aircraft, reentry hour wes arnounced as 1200M, 22 June 1956, a ~ meee - BEST AYAILASLE COPY 1 prarioy = ~ F 3 Doone — cenot CT ——f—F met ee a4) nL OF —7G— CTD, co —) -