UNITED STATES 107032 ATOMIC ENERGY COMMISSION WASHINGTON O C lOS45 MAY 2 1 -f tJS DOE ARCHIVES • ·128 U S ATOMIC ENERGY MEMOBANDUM roa Tlµt UGH GENERAL MANAGER SUBJECT I RG QOKlllfiSIO Colleetion_ l O a S _ _m c - r 1_ _w_ _ __ CHAIRMAN SEABORG COMMISS IONEll RAMEY COMMISSIONER TAPE CO MISSIONEll JOHNSON 1 Boll @b 1- l c Foldermtt s •4 I b IC I u # 11 f- 'i r IJ- ue f-lt --- tefl L'- - M t 4 - -- UNDERWATER SEARCH FOR WEAPON DEIR AT THULE GBEENLANI - 'the purpose of this paper 1s to provide further information relative to the above subject which was addressed in memorandum to the Coumisaion d d April 18 1968 and which was reproduced for consideration of the Commission as AEC 907 33 The above memorandum made reference to a Sandia Corporation study of the accident at Thule to develop an estimated footprint on underwater trajectories Copies of the study have been reproduced and are forwarded for cha information of the Commission Copies of the report have also been forwarded to the Aasiataat to the Secretary of Defense Atomic Ener17 and Headquarters u s Air Force signed Edward B Giller CLASSIFIC JON eANCELLED WITH D a' L IT C ' C BY AUTHORITY OF OOEI 00 t _ A Cll4 LLJ 44- o H - Jf · sJ o 18 Edward B Ciller Brigadier Ceneral USAF Assistant General Manager M1lit8%J Application Attachment Ltr fm SC to AJJl dtcl 4 16 68 as _1500 1547 for z0 z0 - V a L U Q LU J LU C ·· When _ _ •· - i c ifKr · •·- Division of Biology Medicine v cy 13A of attachment _ 'IllED'ri 1i ICJ -'r lif'i s ffiY • 3 - - _ r r j 1U 11L• - _ - J 1 - ' - SANDIA CORPORATION SANDIA BASE ALBUQUERQUE N M W A GAR ONER DalCl'al Of fflnlG IIMUINllff APR 1 I 1968 U 1500 i547 u s Atomic Energy Coaaia1ion Albuquerque Operation• Office •• o Box 5400 Albuquerque Rev Mexico 87115 Attn w le Re1ult1 of Study to Determine Sea Floor Search Area for Ml11lng Debrie U L Hancock April 4 1968 ABC ALO reque1ted Sandia Corporation to •••lat· in defining an underwater •••rch ar • off the coa1t of Thule Ari Greenland A ala1ing weapon part i1 pre1umed to be located in the area u the reault of a recent 152 aircraft cra1h Thia letter pre1ent1 the re1ult1 of theoretical underwater trajectory atudie1 perfoDDed by Divi1ion 9324 On Several aaaumptlon1 were nece11ary ln reaard to the 152 flight charactet• i1tic1 at the tillle of impact Point Zero a11umptiona are•• follow• 1000 fpa Velocity 30• Flight lath Angle Aircraft Attitude Left wing dOWD vitb aircraft in • gradual left tum Th••• Aa1uaed water c0Ddition1 • 2 0 aluga ft3 Denait Temperature 2•c conatao t to 750 ft Depth 750 ft uegligl-ble Current■ Phyalcal cbaracteri1tlc1 o the mi11lng obje'cta Weight Length Diameter Spherical Radiu1 of Inda Croaa Sectional Area lei• on Area --- -2- U 1500 1547 Hydrodynamic characteriatlca of object Draa Coefficient encl on Draa Coefficient aide on r Note The 0 6 1 0 dr•a coefficient• include cavitation effecta A atudy to determine the velocity degradation uaaiaa the object penetrated two ' feet of ice aboved a lo•• of approximately 50 fp• alabt be expected Point 1 Thi• effect plua any effect on velocity due to contact wt th other debria i• adequately covered in the varlatiou of impact condition• aaawaed •bow• The attached chart tbe reault• of aeveral trajectorie• and define• a auqeated aearch area with probabllitiea The angular limit• wre deteniaed froa the patten of debria found on tbe aurface of the ice UL l 544tal • - •' IS lS00 1547 ononnmc