l. srogrem Three - (Edgerton, Germeshausen end Grier (ALC)) 2s Project 3.1 ~ Ball-of-Fire Yield (H. Grier) - 3. Le One theses To photographicelly measure the expension of the bell of fire. Since the rete of expension will increase with increasing yield, this necsurerent will give e reletive measure of energy releese,. both Shots. ing Eestmen cemeres with various filter fectors, focel lengths end speeds will be operated on Parry Islend, There will be one Pepatronic camere (single picture et e definite deleyed time after zero} on Feyy which isdesigned to give a quick meesure of yield. There will be vipee histcens running at about 2000 fremes/sec on Rigili end twe Mitchell ceneres, et about 100 frenes/sec on a ship. ou Bogellue. Two cameras mey be opereted The ceneres on Parry will be opereted both on a tower end from « fall-out proof structure on the ground, Fell-out-proof struc- tures will be used on Higili and bogellua. Te bntry to Perry and Bogellue when rediological conditions pernite 5. Two men per teem. Ge helicopter from Kendova to Parry end to Bogellua. working time cf two hours. keturn to Curtiss withfil. 10. Fil, will be stored in fall-out proof buildings. ll. erotective clothing cnd instrumentation for four men end two monitorss brelininery survey will determine the necessity of monitor service. 4 Lay, toy, MC py Ue = i Tos : | [F