~lQ-~l'CHJ:;; Fiehta~s dis~atc~ed sighted nothing. I.U: Ht C~J, A''C UNCLASSIFIED Bft u.n.ttoaon~ ~tee 11 Hao 5J after.\llloua prOj)llr,at 1on '' which lY tanpnt to the "duct" lA~er. Tbe erteota reported by the radar etation, 66~d Alrcratt and ,. am1ng ftquadron, located at t.he .tlcGbee-'l)eon A ire att., knoxYille, on the nlebte ot 29 and , .) How lYSO, are canetdered t.o be due to a rat.~,_. atld (o~red t.n the ear.tc ertect.e obaw'tftd on th 18 t~p equ a\ other locat1one) due\~ ottect. \o arran;e 11ith the weather atat1on at n&k Rid~ to haYe ataoej)har1o eoundin;:e or ocoun-ene.1 ot the "duet" phonononon The C.k J~1dp wetJther etat.ion bae the nooee.a17 equ t, a capt1Ye balloon wire oon~o, t() ke the eoundln;a. suoh eound1np not aYailable tar the per1ocl ot detection tvpu. It alao noo'!!Mftdecl that equ1 be requie1t1on~d acope photogr11ph1 of eubtrequent ocCN~Tence ot tho detection ot unknaan tar~tn, pt\ntoa io t. Nde at ...;.two t~1mate 1ntenal.a. ~o note that fii,hta of ducke have bMn leteotod on the A!l/C?Sl radar " at thle l,ovt.lon and lntercep\ aironatt bawe 1nte:o~ted thie t_ype tarc t. OUcka wore detected at an Pl tltude ot 8000 . It appeara that 1 1ndlw1duala at C.k Rid~ ware ~ concerned wit'j tho poea1ble tlo-1n earl1_. t..~eidente eapec1allJ one regardlna a report received tr011 a f._.. Cak :~1dge to t.~ etteot tha\ he bad aided tw() r:on nnd a ~"" hnv1 ng Ur: CL/\SSlFlED. UNCLASSIFIED "'' r~.R.Koeen~t. l\ atattld that thia truok on a aeldc. aaod road and t.ns a partSaU, oowecl all'WV eolcred O)'llnclrloal nbjeo\. The oooupanta tedl.r epoke with a torelp the atand~ln\ ol teohnlcal 1ntellieDoe~ 1t. appear that to thta deper-ent that wGDld cou.e auoh radar targrte t.hoce reportted on 29 l:nd 50 MOYftber 1950 . UNCLASSIFIED ROJ t. Jatnea .... llllllf'or F SUMMARY OF INFORMATION cto, rjGfl, o. ~aa 171, J.l IIICIIII !DOl AliJIOII, CODE FOR USE IN INDIVIDUAL OF SOURCE: COMI'l.ETtLY REUAILI o , , A UIUAU.Y RIUAILI , , , , , FAIRLY ltUAM.I , , , C MOT UIUALL Y ltll.IAIU , , D MIJAIIUTY UNKIIOWN F OF INFORMATION: COMf'IRMED IY OTlm' !IOURCIS 1 DOUI1TULL Y TRUI , TltUTH CANitOT IE JUDGED . t IUMMMYOFUFORMATIOR(la GOIIpll wl\Ja lla1r4 J,nq, IUBJJI)Ie A'roraft, the toll la tbroup 1601, a4 1110 laoure 1110, ID IOftllber ltao ot Witn at eota 1t ,!!1lablee ..... ---t---~'ii: the ra4ar perODnel photocraphe ot the raclw eoopee wlth a II !dl1s..ter p_.aonl -rae .lpprrtlJ' tbe expoaure 1;be wu lid oorreot DO S.C wu fonnt Oil idle Unlo~ Decatifte 1. Obj e@ 81ght.a, ;Viiaoootliite4 to~, . dn... u4 tercete ; whieh nrie4 lD 1'.1 rroa 11pt to he&'fT airor&ft, vanlinc b ala (8) aidJ' (00) .Slea per beutnc at a altitude 1a u tollowaa DOWNGRAfiED AT ~ YE I>EC~!FIRD AFTE~R lNTERVALS: DOD DlR 6200.1~2 YEARS . DISTIUIUT .. 1 1 oo Seourity DiTiaion, AEC, 1 oc OSI, KnoXYille, Tenn lJNCLA.SSIFIED Oak Bid,e, TeDDe SUMMARY OF INFORMATION f'MPMIWG OfFICI o. loa Itt lsrille f-.ne CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION OF SOURCE: . OF INFORMATION: COMI'UTtl Y Ra.IAIU , A eotlf"'RMEO BY OTHER SOU ..CO . 1 FAIRLY REUABLE C POSSIBLY TltUE , , , , , 1 Ill lloOBBI n&OW ADJIOI!, DOXt JLLB. 1101' USUALLY REUAM.I , , , D DOUWTFUU.Y TltUE , , , , , , 4 MIJAIIUTY UMKNOWW. F TltUTH CANNOT BE JUDGED , , , 1 SUMMARY Of lfiFORMATIOII At lfllhoura oa II er 19150, naerou un14ct1t1e4 patnta (objeota) appeare4 oa the radar aoopea ot the 662D4 Kll I>n&-..n~, looatecl at lloCJh traoa Airport, lnoxvllle, !nne !heae palnta, ao ~NJ~troua that thq ln ooverecl the "Reatrlctecl .Area" at Oak Ridge, Tenneaaee, ae-4 to orlcS.nate near the o-.ter ot the "Reatrletecl .Area a no~at bOWldVJ and tra..-elle4 aoutheut at about ala (e) Jdlea per hour. Aa 'the pa11lta oroaaed the "Reatriated uea (u lndioatecl on the ra"ar aeope), ... ot thea t.Ude4 to ohqe cU.reotS.ona alS.ghtlJ ao aa to tranl eaataCJutheut. It appewecl tha-t theae pas.nts" llight be alightl7 atteote4 b7 the w1D4 11h1eh .... froa the at mz( 6) ilea p .. hov. fh object eetiate4-2600-moo --.... level, m4 the7 ooul.d _,be' alghtecl em the ra4ar high aoope 111LtU th.,. were w1. thin teD ( 10) nile a or the Raclar Statloa. rroa the original acmroe. the objeota appear~4 to g11n al.t1,ucle u thq p-ooeede4 aoro the reatriote4 area The maintenonoe peraonnel om oke4 the radr ecpipnt 1Jl a t-ruitleae at to f11l4 Dl tunotiona, and the oontroller awitohecl tbe radr aet froa "high to 1cnr be etc doing everything he could to verity the readinsa, ae~t to ehanse the treque!l07 cf the radar equipment. the oontroller alao oel1ec1 another radar expert to hie f'indtnga and the above S:atormation wu nrit1e4 by thia peraon. The oontrol1era 4eaor1be their obaN"'Ya- tS.ou of the radar aoope u atrmsel7 oluttere4 with pa1nta" aa though pe1leta troa a ahotgua ahell were poured onto a table anct allowecl to go aoroaa it. (!be table beiJI& the "Reatr1ote4 .Ar .) !be palnta ftl"1e4 troa 290 cle&r" to 110 4egreea a" tr01a t (10) to ~1z (26) ailea 41atenoe tloa the ladar Station. md theJ' aoulcl appear, cllaappear, paint 'brich' eZMl paint d1a at ftrioua t1 A flcht_. air~._. ant to t.ntoept one or "1 ot the targeta ancl ._. notorecl through, eel around. apeoitie twgeta en4 waa "notorecl through. and around~ an area ill 11hiob paillta appeared. but DO 'ri.aual. oontaot waa reporte4 b7 either the pilot or the obaervw. Inatallatlcm ot Geiger ooUDtlng equipma' into the tighter a1rorat\ ot tM &thAW Pight Squadroawu eontemplate4 oa SO I er tam. at which t1 repreaentatina troa the HEPA Diviaion, Oak Ridge, tenneaa .. , Snapeoted the aireratt for the poaa1b111t,r ot aaid lnatallat1on. MOat ot the targeta rlaeble oa the radar aoope tor ar three hou.ra, and a t oould atlll be aea a' 0600 oa 10 IOYelbv 19&0. the sraph reoor4 of a baokp-oa4 (Oelger) OOUD.ter 1a the "Reatr1otec1 .&rea lll41t4 a pronouaoe4 riae ill Alpha partialea at 1900 houra Oil 29 cwJIIber 1960, ucl a aligh' rlae 1Jl Oanna r at the aame time. Theae Alpha partiolea end rA;T readinga are nnaooountecl tar at the preaeni t1... Atoaie EDerer 1 otfioiala ad'riae that there 110 .Arsoa releuea (.Arc ciSTRiaUTaoN Bq. !hlr4 Arrl(r, Fort 110Pberao 1 oo PBI. tnoatllle, 1 oo 8eouri't7 D1Yia1oa. AEC, Oak &idee, AGOFOIIM 568 SUMMARY OF INFORMATI PIIIPMRII OfPICI CODE FOR USE IN INDIVIDUAL PARAGRAPH EVALUATION OF SOURCE: OF INFORMATION: IED OBJJ:Ctl o Nl tuo ADPOat. COMI'UTt.Y I'ELIAIU o , A USUALLY I'ELIAILI , , , I fAIItL Y l'tUAIU , , , C lin' USUALLY lm.JAILI , , , D UNKNOWN f CONni'MEO BY OTH1' SOUI'ICES I TI'UTH CANNOT IE .IUDGtD I ebarpt wltb rd'outt.n p .. tiolea) dnrlac 10 .,._._. 1910e Oil 10 11~ (4\11'1111 the preaenoe ot CIC aM OSI repreaentatina troa 111th OIO DetuUell' 4 lth OII Diatrio') at 11&1 houra, & ablgle vn14etitie4 tarpt appeared tbe radar aoapH rel1owtng la the oontrellera notea ot the objeeta procr time (hova) At th'-a time the tcn cl1aappe.re4 froe the aoop.. I At approxS matlT leiO our Oil 10 .,... .. 19150, e paiJlta reappeared Oil the radar aoopea aDd theae cal.17 followed a aiwSJar pattet'll . u 4eaor1be4 before. la a441 tloa _, the replar . or the tollowiDC l aoaa were prea~t to wi th cetal !'b palllu u before. plotte4 and they .. . Oak Riqe, Teun. Oak Jlidge, !enn. , r ( off-cluty) , UBJI, Oak Rid.ce, !enneaa .. llidge atorlea, Oak R14se, !ana. Ridge latlonl Laborator1 Oat Ride, tenu. OSI, lnOKtllle, fcm were ao JlUMII'OU8 that thOT eould neither be oou11elaor riaible the n4ar ern at11 approzltel.J US) Ui~CLASSIFIED ocsTRJIUTION I eo Jlq. !hircl ~ Pert JloPheraoll, Ga. 1 oo 8e~.u-ity D1Tialon, uc. Oak &lqe, !eaa. AilOfORM 568 SUMft1ARY OF IN FORMA lOft NCLASSifiED fMN"IM OffiCI CODE FOR USE IN INDIVIDUAL ftARAGRAPH EVALUATIOft OF IOURC: OF INFORMATIOft: IPDD Oaaotl OS COMPUTtLY ltlUAU . , A A.UTY UWICMOWN , , F CCliWIRMED IY 0114R SOURCES I DDUIITFUU. y TRUI , TRUnt CANNOT IE .IUDG0 , I Dlnafea a the OU Uqe Atoaie JIDerg Co-.laal DC ooaeerdla& --~ arlq the &howe (ldlea per the t-.peratun at tbia tte (1800 hove 18 ROftlller 1960) wu II d at 1000 teeil (1800 til level). there were 110 woh aba.-watlODI tua cm 10 er 11&0 bd the t.peratun WM 11ate4 u M tecr .. at 1130 hovae !he poaaibiliV tbat the Gel&w oouatera la the reatrlaMd ana are r .. elnzac Sn41 flaoa the 0-k Kid& atiODl teboratorr plata ia rejenet beoauae at 600 f troa tbe pluta ataotll th.re la OD17 a 1/lOth toleru.oe of ra4ioaot1nt,. (tolermM 11 tbe IR fit ndloaotinv that a hmM1l boq n ad oold;loua .-po.ure for entire lite, witbod atteetb& tbe ! pvaona h8al th). Alae rejeot.l ll the poaalbi1l't7 that ~alolocioal 1 ra4Sout1n ...... u radoa (11atun1 radloaotidt,. ra41ate4 tbroup tbl crov.D4 tzoa ra4iva. .to., la the ..nb) ooulcl oauae Geicw oov.zater rea4Snp toad. 1a the ratrt.ote4 area, beoauae aalcl racl la a . OODO.xltratlaa caall~ ..uur .. at 1/lOOOth tol.-Me ot that c-.rate4 a-600 ten troa the ..._,ape~ 4ea1pe4 to u..-s.a the etten ot a rel. rad8r have lhoa tbat noh relea 110 latteraoe or v t.nclioatS.oa OD tbe at the boavllle ladar Btatioa. Plearrang- be'--..oa th lt&tioD u4 the Tleatb Dinioa at Atold.e BDwg aalcm, tor tbe nl ot Arc-. ._.. ma4e e4 at the ti of releuea (one ot whioh _. a full rel ) there 110 ra.4r lll41tlaa. !heretare, a prevS.ou beliet that 1110h beq reci-'M -the radar 101'-hal b- UNCLASSIFIED DtSTRIIUTION I ~ -.,, Peri; MeHler aa. 1 8eeurS.'t7 D1Tial01l DC, Oek &1qe, , ... AIOfOIN568 UNCLASSIFIED DEPAIITMKNT 01' THE Alii POliCE HKA,"'QUA.TC ... UNITED 8TATK8 At I'OitCK WA8HINeTON THE INSPECTOR GENERAL USAfl' 8T .. DI8TRICT O'I'ICE 01' SptECIAL INVESTIQA1 Dt.r,ctor of ~j i>'-'C1C11 Jn'fORtlr..:,tl ..ae ovtb\~..rtore H. h . Alr J!or,,. -Jtl.rhlDr,toD n, C. 1tt00 unlucat.1i"liX1 ob,,ec~ c.:.~ ,~N4 a\ y;-..:rlal\le tlcoe on th 04;. of \bo Ar h~d.l\r ~. lou., >oonllle, ld)nesoe ofer the ~tl,Nllacl :.ro.~ or w.Jc ltl~,_, 'b:lMIIMe r-Lil' (obj~cLt) r.:);;ea.re4 on tho rt.Jnr eoo~et~ ot ths ,'\f:' :':!.4:!1' ~-~t.a.tl o, tiG~ A\lf <.ruPdron. t'ti}hee-'i)'eon Ail'tJOrt Kno:wllltle ~ennoe ~ t-.er.e ~)ll.lnta '"-re o'or the v$k i: l:U:o Con~rollod. 1\roa u~\d th~y .~en no' blror.:.1'\ ,.. thQ '.'0\e oo~ o1nttcrllcl v.l\h pttlnt-'l!Jete obJect a a!lr.,:tnd to hc.w ortr.lnr.tbd mt~ \he C'J"OuM e\ the Olllft\Or Of the ftOfthw<tl\ ~Uftc1AJ7 of the ControllOd Area ancl wore 'n.wltng GDtl ascnrult.n at olo" fti.\O of 8 :'00!\ ln n ~a\hueator17 dlNotlon o~..r the tAntr"llf')(l roa. /\1 tbe objeot n~v at &:n altl ot 2800 to :\:(() fl!o\, ~ onr \.he C~Jn\er ut t.h~t 0-cm'I'OUo4 .\ren \he7 e:,t'e ... A or f'o.nnod ou.t i\1''1 aone C!ba.w ~th o ,~00 tGlnte ~,_,i mo ;.'<:.~ dtt..~reoa to ~-t,X; U").lrJ"'.Ja at troD t!:G (10) t~ t\iOll~ elx (~:G) Dll1111 troll the i~ ~latlon M4 \hoy vou.lcl &iJ..-.r. 4laa,:~r, tn ~vrll:h' nnd :~:ln\ 41 "' ftl'lou tlaoe. .An b-s;c; fL:;btQit .'ku ... tocl l~taroo,tl"n of e:"tOoltto t:>.r~\1 bn' n::. 'llata::.l or Aii"~)Orne ~!i.t.l' OOA,~C\ \ft.O t .o.t!ne #\t 19::U \!;e !ll~ntl ~t:l.B \o 4tw;.1Dlth Ml af\ur about, ~\10 1'he tollovln& vlr,d oon&lltlooa ~.-lle4 OYd' OtJc llt4~ :1J J:ownbt.ll' lJ:'Kla ::urr ... oo con.utt'J-( r o!r,.1r ~\ln'er us:oJ. t .lnt .. ~rulmJ r/J.llo untlvl\7) loO;..:ta4 ln \i~ t;.).~tl"o1,le\l : .J"fJL'L in ilc~tad A =-~t\fl .. ._ rlr;e lll .Alpha "rt.lclua ~Ad .~ clt.,}l' tho .trvr.C~lf. t.1~..~. i1tanlo ... , ,rr..:~ l;ot4nlss1~ .. ;' oinolal st.u.to t.1u.\ t no 11!-"11'~ role.~ ~.o \lf l . ...t1GL~ct1v \,:~r\1cl'hl v:':! ~u.o tr~il 'htllr lnat:..llatluM OD .:.9 ur . ,oll'l;ftn~ lu tl:o !3~1'lt:aollur' Hv\ sa of tJJ .J obJt,t!ll pr~:.:n (:bJeet d1~,:li-4~ea fro. the co,e a\ 1409.) ~t lq ost~:-~'~17 1f1:x, 30 r:oYUa'ber 1900, palnta, too nw,esro -:.:.: to oount, rn, . ,. \\,.r.:l or. tho rt.(,,. .. r aco;10ee ~1towo ~into tolloveu c. ~t;1,n .. , ~- L; . . ~ltl.>n to t.~o ro: r ri.!J"r crew, wvre ~ua f.>ll~dn,; pc}rnonsc t \jiJt l~l~t 'l''OQih t n t hn 1l~ .t..!ir r.trcrcrt l!\ tkJ t lr;~ ,., t