Operation Castle the Operation Plan No. 1-53 Task Group 7.1 (Deleted)

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Cetr Task Croup 7.1 Operation Plan No, l-53, 1, Overseas experimentation depends upon progress of construction, reliability of instrumsntation and the overcoming of obstacles presented by local conditions. This Operation Plan is intended to be used as a @de for TG 7.1 personnel since it represents a record of agreewnts arrived at pri6r to its compilation, It Is expected that this Operation Plan, augmeqted by decisions reached in official l’G 7.1 conferences to bo conducted in tho Foruazd Area, will furnish the arediumby which obJeatives of TG 7.1 can be ‘achieved. The Forward Area mnferences will serve as the on-site means of coordinating the necessary changes in tho Soientifio Task Gmup operation snd will reduce the load of formal correspondence, 2. Whenrequired, specific plans covering Task Group activities at rehearsal and shot times till be issued prior to oaoh event - to include hour by hour schedules. 3. Subsequent plans ulll govom post-shot dispositions of Task Gmup elenent 8 - to include “mll-up” oporatkons,

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458 north latltuio; an area 150 ties w 350 miles. uatoramar of fho roupoctivehgcms ad tho uator areaswithinthreemile6to tho aeauanioido of tho roqmctivahnd lroao.

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dsy for IBAVO. For further code designation8 on the shot schedule, Annex A applies. b, In acco~ance with directive8 fromthe Joint Chiefs of Staff Spring of 1954, and I&I. make eqerimsntiil mbasuresunts proposed by the AEC._ and the Depadent of Defense (DOD), A8 Approved &y their All weapons and devices m be statioslly detonated. co The Joint Task Force is commanded& Mad Gen Amy. The Chief of Staff, U. S. ArsG’, is Axecutive Agent of Staff for all matter8 pertaining to Operation CASTI& for the Joint Chief8 v Authority of the William E. Ogle, LASL Co1 Edward Ii. Lahtl, USA Brig Gen Howell M. Ester, USAF

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affecting the operationsl plan arrcimilitw suppmb re@remsnts therefor, lnter4sland rrrovmenttr; placing of ths ezpsrbmtal dotices. e, Completesths installationsndaalibrationof theweaponsand devicesami all instrument8 and test apparatus, f, Is responsitie for the xwnovslof all TO 7.1 pa~~onnal and h, Must be prepared, upon directive fran CJTF!SVEN, to cc&tact AL Conducts the radiological safety program (Anneuc P). 1. Recomrmendssafe positioning for aircraft participating in the n. Pmparss appropriate technical repmts at the concllumion of each Retieus ati approvesthe constructionm@remmts of the scientificprogrsms under the supervision of TU-1. Administer the technlcsl phases of the contra+s of LASL atxi certain AECscient%flc contractors. Reviews the teohnkal reports of the scientific progrsms

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r t@ro@Jn and uquid nitrogsn plAnta in the Forward Fromrer d rhlpetothe Fonmd Area necorraaqmappl%er forthe operationof theplanto. Obtainaand in&al& liquidnitrogenrtoragedwur in the MOO with LASL eontrad. Sampler uxi uulpo~ all bytlmgen au3 USL deuterim neoouruy budingu and f4cilitAer. Coordiartesfor apmval Jl derigm atldlapat through dottar and refrigoratorrthroughoutthe ForwardArm aa (2) In consultation with J=Divl8lon,LASL, est&Uehor the facilitiesreqairedby CambridgeCorporationfor the opwatian at the Forward Ama.

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bker arrangeamts with J-4 ior transportation of the dewarm, lq@tment to the Forward Area fran the coast, am3 return. arxl operational fUling in the Forward hreaj arxl fkrniehes rpedd device8 to designatedlocation8 inthe Formed Area In ConJunctionwith other designated units of TG 7.1 and In (1) Arrange8 with J-4 for 8higIBnt to the Fonord Area of LASL necessary for the a88embly ami chedr out of syh dOYiCO(8)e This does not include ec&anent ntrnirhedby J-Divbion aa part of facilities. (2) k88eZUbb8, check8 out and tittir in position at the FImmrd be made in coordinationwith TU-6, (3) Arranges with J4 for return to the P, or storage on Parry Islmxi, uhatevermterlal and eqtipnent nubd under (1) and (2) abow which remain8 after the operationla completed. device8 when dkected by CM 7.1. Arming includes making Op8raterthe Firing Control Room. Weed-to-KmP basi.8a8 required for their aapport of Firing

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Makes all aogatlvosrrqarsted b, otbor taskunits to pmunits. ud staff swtions 2r.1black and white and color, still and motion piature. Makss twhnhl documentuy rowrds b still axmilpproprlato motion plcturssd each operation as recgmted, Provides faclllties and ald to project oiftcsrs in their processingof scientific photograptic rowrds, ante with security and classincation instru~ons, Prepares scripts for such non-tocbnhal motion plcturo photogram as my be authbrited by CJTP SWEN. scripts in coordlnstion with tho test actititiss to bs photo~r6phsd. This cOordix¶ationAs In oxder to minldss interference with test programs ux3 duplication of photography being amompuahsd by the Technlcsl Photogr~pb~ Gruup, Stores, ifmos, pmcsssos and lxounts for fUm in lcwmlConducts aecessaq mspplngphotogram d preparss rrosaics Frowsses certain rnotlon picture filmforBolQ8a rqird, (2) Revlews and approves the wnstruction r~ments of the

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(3) Mmlnlrters thetoohnical pha808 of tho oontzytr of UCBL (4) Reviews the teohnioalreport8 of the UCRLralsntifia p (1) Arru1ge8 ulth J-4forrhlpmnt to the Forwad Area, the UCBL (3) Arranges with J-4 for return to tho ZI whatever UCRLm&orlal and equipant noted under (1) and 12) &ow which redna 8A'terthe operation ia completed. cation on the Bikini aal En&w&okAtoll&

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requiring Task Group support, will also be imluded. Rocovezy rquhamte will be spsoi.fiad in detril, Insure that personnel and prioritycargoam retumisdto Exercise maximumeconomy, commensurate with nGettingthe Job Done"In the cmduct of all operations. Keep CTG7.1 informed aa to the statusof theirtask units, pxmidin#specifiodetailsof obstaclesto the successful and timelyaccomplishmentof theirmissions, by thisand other headcgiartsrs. Conduct liaison with all other TaskUnit hmmders to ths extentnecessaryto insureadequateM&-Task Unit support and the proper fulftient of the ovsrall Tt37.1 mission. Insure that all persmnel tier their cmmawi have bees adequately briefed for emargency operations (Anmx L, b. Adndnistration: See TO 7.1 Administrative Plan, dated 15 October 5. Cod and Simal Mattersa to higherheadquarters is depicted by Appexiix I to Annex B. The AECpoucP line butwsen the Santa Fs OpsrationsOffice(WOO) and To 7.1 reprssents ths position of the Los AlamosScientificLaboratory(L&St)withinthe Atomia weapms pmgram, J-Divisionof LASL is devoted to testing ad in&udss an

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RG 326 ES ATOMIC EXERGY Los Ahnor, New Mexicm Foxward Arm operations,beginning with the nwemnt of tijorcontlnpnts of the Task Groupto the ForwardAreaand endingwiththe completion of the b. Testrr OperationCASTLiiwill be a seriesof atmic teststo be yiddr in the megatonrange. fran bunker on Enyu. station on Parry. with radii of

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The most probable yields arri limit8 are give but the limitsare not tie. n 8ro muet inetnrment to accept a rat&r wids range yhldProbabletimerof LA!% ehote will be between one hcur ani one&alf~ hour before ourwise depending upon results of exprimsnteto be ooticted In the Forward Area. The time of UCRL shots will be ens-half hour beforeeunriee. a. Xniuetok Atoll will be the baee of operations, irrespective of the coop of activities on Bikini Atoll. b. Xajcv cqogsnic work ulll be done at Eniwetok Atoll. arm work willbe done on Parxy. d. five Of the sewn devices and weapons will be &88smhled on Parry, one on Elberim end one on Eninmanf8la1d. e. Machine shop, laboratory, photographic warehouse end stockroom fadlities Wail remain on Parry and E&&ok bland8 except for limited field f. The USS UIRTIS3 will be the @ncipal ehipboard facility for project laboratory, &88S8Iblyteem base and office space. Prelimlnaxy assembly, testing of experimental e rehearsal luill be one on Parry Island for all WlSL 8hote. (Bikini Atoll). Fqu will have a emall tqnwary wnp to eu&xwt projects personnel nece88ary et that site. i, The camp site facilitieson Eniwrrtok, Perry and Bikini 1elsndS

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especiallyaboardthe CVE and AOC, will also be limited. Therefore,it is shouldbointhe Forwad Area. (2) Personnelshouldleavethe ForwardArea aa soonas their (3) Persoml shouldbe at Bikinionly as long as theiroperaj. The port of sntryfor aircraftand moat rhippingwillbe Eniwetok. All cargoshipswill stop at BUni to racsive or dischargecaqo. sectionswill be located major elements of the M 7.1 taskunitsand at&f Eniwetok, with Los Alamo8and Oahu will be maintained on o. Exceptforthe Firing, Party and its attachedelementsno personnel tillbe penaittedwithindangerousrsngeof an armedweaponor device. Nomnber arrlDecembsr1953, With minor excsptionr all pm$cte are plmning b. Aa nuch constructionequipmentuxi materialas posribleuUl be is&z d Piriy The AGC CoumuCShipwiilbs poaitionedtithin of 83x or 1088. This stationwill also serveas a photortation axxifor an willbe rslqod from Bikinito Parryto allow correlationof operationawith

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a. The Firing Party will with the flnal monitoring, timing, include those individuals, specifically perform particular tasks in connection b. GJTFSEVENwill insure that a security and safety sweep of &ll islsnds to be evacuated is made during the afternoon of shot minus ons day, All sscurity psrsonnsl,sxcspt those in the Firing Party and at the Control Point, Qill ba evacuated according to ths schedules for each individual shot. No furbhsrsecurity of the shot island group is dsamed feasible, except that provided by JTF SEXENin the denial of access to the Atoll. c. The numberof persontd on the shot island group will vary throughout shot minus one, being contingent on the state of readiness of the weapon(or device) and experimentsl pmJect8, and on ths time required to accomplish evacuations. Qy 1500 hours of shot minus one, only membersof basic Firing Party plan is as follows: Shot kinus One Das: At a time to be detemlnui, but uhich will be appmdmately 1200, the Firing Party CommIer wl3l inspsct the Control Point. This ~533 be the structure containing the firing control panels located on Erq%for the 85%Bikini shots and on Parry for the Eniwetok Shot. It will be the responsibility of the Firing P&y Conumder to Insure that ths arming arrl firing circuiting is operational. After inspecting and securingthe ControlPoint,the Firing Party Commanderwill proceed to the shot site, making stops enrarte as netcess~e Prior to the arrival of the Firing Party Connmndsron shot minus one, the ahot site has been tier the opr&ionsl control of J-6 ubile the devke has bqen uxxier the operational control of the proper Assembly Task Unit Commandor@U-i+ or TU-lb). During this time, the nuclear insertion; upon obtaining pmd88ion, W-4 (or CTU4.4) notifies the Firing Party Comandrr and proceeds with the insertion, Upon arrivti of the Aming Tesm at the shot site, evacuation of all otherpersonnel MJ.l begin. Aer sufficient time has elapsed to allow Ca~plete evacuation, except for the ArmlngTeam, the Firing Party t2amander or his representative will contact WTF SEVEN through CTG LA: obtain permission to proceed with the arming operaPermission to proceed with aming will be basically conti&mt upon the satisfactory completion of the evacuation plan. Aming will be accamfiished utiliting flnsl check

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timsre located at lists. After the Arming Team hae completed the arming end testing operation they will evacuate the ehot bite. Detailed ir.etructi.one as to the method of evaauation will be published in the Forward Area, For the six Bikini shots, evacuetion wil; oe to the Control Point on &yu for those personnel comnon to the Arming and Firing Teem; the ree&tier of tb e Teem till proceed to a ship to be designated. For the Eniwetok Shot ell pereonrsl will be evacuated to Parxy felard, The Firing Teem will maintain comnnurication with CJTF SEVENthrough CT0 7.1 Iran the time of their final arrivel at the Control Point, Shot Dent The Firing Party will start the firing mechanism ~motor-driwn sequence timers) at the scheduled tti unless Party Commander has the added reeponeibility of insuring that ell time elgnele, to include voice the, properly originate at the Control Point, * The basic fir$ng mechaniem will be motordriven sequence the Control Point (Enyu, Parry), the timers being started marruaUy at tha appropriate time. “Hard wire” control will be utilieed between the device and the control penele on m (and Pw), For the Eniwetok Shot a TV circuit ~3.33. be ut ilitsd at, Perry to monitor the cryogenic panel on Eberixu, The control panels on EIQW(and Parry) M.ll contain *Go-No-Con circuits as well as having prcnrieion for a mual stop at ally time prior to zero. The *Go-N&W circuits provide for an automatic stop, the action of the circuit being determined by the cotiition of a particularly critical experiment or equipment assembly, The purpose of the “Go-No&on circuits is to cause a shot stoppage without having to depend upon the human element for detection end Judpnt of the more critical items of the shot, a. A shot poetwnermnt ie eeeentiallg a selection of a new shot dey. All decisions ae to the eetabliehment and preecribnd length of postponements will. be made and announced by C3TF SEVEN. b. As mentioned above, the shot may be stopped either manually or eutomatically after evacuation has been completed. If a “stop” occurs, Zero time euet be deleyed at least 24 hours for reactivation of instrumentation for the experimental proJecta and the timing and firing circuits ae well as for re-evacuation of pereonnB1. For ECHOshot only, reentry must be made prior to E plus 12 hours with the two RTD’e which were evacuated at E minus 11 hours for the purpose of topping the reflux dswar.

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d. Due to the number of 8h& scheduledduringthe operationand the relativrlyshort time between8hOt8,therebroom88a limitationin the A completestudyand appropriate recommendation8willbe mrde to CJTPSEVEN (1) All per8on.d not 088Onti8lto the accomplishmentof the ldngerrequired for 8Ub88qUentrhotrwill be returnedto the Thelocationof all To 7.1personnelduring the evacuation period8for each rhotwillbe dictated by the preparation8 In general,materielnot requiredfor the Bikinioperstions will be evacuatedto EniuetokAtoll priorto the firstBikini e,quipnsntend materielrequiredat Eniwetokfor operational other materielat Bikiniwill be r&Ocated to saf8i8l8rd8

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(5) An emergency capability for post-shot personnel evacuation from Eniuetok Atoll will exist. ’ This will bs executed only if the radiologicsl conditions rkrdicate it is mcessaxy and Such evacuation will not involve movesmt of materiol. Party on Equ (ad Erxlman). possibly a small maifrtenancs party 06 The nunber of personnel on Enyu (ami Enimm) the capability of helicopter Uft . Bikini Atoll will be evaaaated of all psrsonnal Firing Party on Enyu. Equipssnt not previously redeployed to Eniuetok Atoll will be rslocated on m (and/ or Bikini) I- prior .to shot time. (1) re will be no pm-shot evacuation of personnel ~rsonnel.~ from Eniuetok Atoll. w the relocation of equipsent ard smsll craft fxxm the northern islands to E&&ok axxl Pafig Ialards will be neces8axye 10. Beco~erpt The fsasibility of conducting m-entry and recovewy operationa ir dependont upon radiological conditions. The success of several expsriments Is dependent upon the early reoovery of xwords or asn@es. It .i8 eaqmted that ev8q effort will be opadeto mske early recoveries after eaah &A&. Retions csn be separated into tuo categorier: I8 necessary in order to offect the fullsst 8ccompUshwnt of the mission of b. Rout&s: Those for which recovery can be accomplished as radio2&-hour occupancy, only those personnel ~&IOasnnot accom#ish work from afloat will be permitted to work ashore. These persons wU,l be based afloat for living and regular mssing and their working time ashoza will be limited by Bad-Safe billeting snd preparations for succeeding shQt8, uithin the capabilities of the

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or PBMto Enimtok. Therethqy uillbe ferried b drcraf’t or boatto Pw packageto determim if adequate prmautio~ havebwntakun, The follouiq (3) Lengthof the of WQO8U8 on trip. (4) In all cassr, c-w manber8 will be lbited to expomm

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Ormnizat ion azxiccrmmand Relationship8 Headquartera Tat& Group 7.1 L&J Aloa, New Mexico

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Headquartews Task Group 7.1 Jdint Ta& Force SETEN 1. CTG7.1 will be re8ponsible for the preparation and conduat of the ABC h8 will prepare for and conduct eogmrimentel te8tr rponsomd by the DOD,88 approved by the Rerrearchand Devel~nt Board end WTF sEVENI He will be (am required by the AEC and coordinated …