1 Locatio o& S 8 Oo me . Oo ip 31:51:4D=-7 Re Reply to Col. Sruce D. iiitwer'’s IVY Yield Questions 3 RY Dear Eric: 135166 I am in receint of a Secret Security Inforration letter dated 4 June 1953 from WADC, Offlee Symbol wCO:S, The letter wis signed by Lt. Col. 3rmuce D. witwer although in the upper right hand corner appears the naze Captain E. M. Hunyon, and it is my guess that the letter was prepared by Captain Munyon. As the present project officer S 2 & Attention: =(— 3 Captain Munyon needs the information he requested in his letter of ie Data inforza In replyto to the questions BESTAMAILAR CEFRRY the ers ™ taforeation on the yieldef the IVY Mike shot ie'11.0 the yleld of the King shot 540 KT. peeon ysRonauoe sane Qo | ™ o Veb ~ nN oO Nic~. 1) thermal energy, you haveprobablyheard that there is evidently s stantial difference betweenthe data taken by the Naval R ue O oratory group under Dr, Stewart and those cee AE oa > & xX 0 R —~ wast < » a eeeets tie partition,of energyand atrospheric attemation of , as i 5 oO oO in the final report otProject 6.10, Defense Laboratory... By conversation with Dr. S Los Alanoe Scientific Laboratory on 23 June, we have learned conference has‘ been set for 17 July between the NRLand NROL“g with a.view to resolving these differences if such is possibles~. suggest that you ask your thermal questions of Col. E. R. Giller, . Weapons 2ffects Division, AFSWP, Headquarters, Washington, De Ces so Ent be may send youranswer izpadiately after the eeneraeR he will attend, ao => met ee n S Mae dn as *, = he a if ay ee Mee a, = ° = : . oO S CERTRAL sy 3/LA = 8B. FoCoz«5110 S/he=Oe a 9-2 re: . & A fos _ *GONTROL NO. Q 36686 Ortgira! sane by E. F.eat, UiMe Sa a “r aSys | E. BF. 3h us . : 4 to camamicate this informtion directly to him. Several months ago I had established a correspondence channel to you, ao my request is thatyou transnit this letter to Captain Munyon or Col. Whitwer if you are sabistied that they are cleared to receive Secret Restricted ; 4 June, bat because of AZ security requirecents I am not authorized a omen eee wy ooo rren be Vo Dayton, Ohio ~. CLASSIFICATION CANCELLED RG ot Mr. frie H. Wang Headquirters, VC Wright-Patterson Air Yorce ihse al 326 US ATOMIC ENERGY COMMISSION - J8O -2,. Saat CTION 1921-3