Cl.,.rilian Dr HYNEK'S EV ALUATIO fS EXTRACTED FROM PRNECT GrtUDGE REPOHT 1. .A tronordo 1 liir,h probe.blli ty a }air or low probnbilitya .tJun- l\tronor:1.o 1 tut su~r.;t~oti -;e o f oth~r expl c..,Uttion!i HR-1 loona or ord ir.~ry ... \ira r.n. rt l n . l!iso611a.n.eou.s (r91'liJ,;tionJ, t:uroral tre'innt,~ b!.rda,.~ ato.}' l.ilOX of '.!)Vlde.aoe prsol ..ld68 ~xpla.r...ation& UNC.L.f\ SS\f\E-0 lR MATERIEL C01~ro nr1&}lt-~tter"on .A.ir Foro~ E.Au ~\yton, Ohio SUUJECl'~ P:roj~ot "SIG1l" Al:r \'f~nth~T Sttrv1oe Andrews Air Foro~ Base, Wa~hinrrton 25, D. C. ATTJTs DSS A Wo-3fr>i3/ro 1.. Projeot :-.SIGN,. io rtlapor!~role for tho coll~otionJ inve:.st.i- t::tion l .nd i tt~'rpret~tior1 of. datb. r le.tive t o 11le}1tin::; of' Uh!.don-t\.1'~ ,d l'lylre; objeota, Attaohod I noidant Sllltlnal"i~s 1 thfu 172 from th~ til':) of i>rojt"}o t " S IGN" are f o::rwarded for ~ tudy and r ttvot:IWBndflt lot~'-' a3 to whieh\ of tha 1.Jl.01d~nta r.1ay be t~Jlimir..&ted rAs b""lloon r91~1l!1ed on Toueine i~ynoxJtio zso-ants by th4 A1r Vfsathar Sorvice, t,h<3 ?7avy Aorologioa.l #t.rT\0~ (l'.r the 'Un1t~d Sta?,ee w~a.ther Bu:rea.u. !M QUi'i\.!DH.Ti-' Atb.~h,d J.~lfi:Y ~ k~ta.ine<\ in your-headque..rtor" for wot'k Llt'; nr..d rei'.,rcno~ purpo~tt , ~.. *'{hft Air w~athor S<!)rvio"' 1<J i;ho or..l.,y c~p;dnO~' o f 1 ~Jpe that hs.~ ~en aeked to a~aiat in the acoomp:io~nt ot Pl"oj8ot nsi<m~ oxcapt that; t"A United State:a \1,:,a.thor Bure~n' hn."l pro'Vt ded L'f\f'ormatlon o~ bJ.ll llp:)l'la1.lng.. R~aearch pr-ojeots ill '.lllhioh ball~">OYlll lElre U.d~d 1'\ r.rl ~hich :1!'~ 1)n:nduotatl .)r ilponsorvd b't; the Army. Jii\"7Y or United Sta~., A1r Fo-ro3 J.r~ t,J,h~c' 'O!td hy tb~ Int~ lliguno~ 08 po.r bn6 at ot t;h1a Co,B:OO...'ld. Th~ "le oh~ okl .rV; u.~ually :\ade direot fTo!'Tl the Proj6"t tt.S1JHIH Oft'io~:t !jC!AX0- 3 . Th~as, Jh~t)k;:a ::..r" ri l::stlnot trom th:lt oheo!c or e;,yn.<>pt1~-: b~llot)n fl.1ghi:3 rr.a.d~ by :o-1~a'the-r ~ex-:ri~., at~tion.:s of th~ sli:r Focc., .. t.he J.:avy o~.nd i;}_e D~part~nt j~ I~ i3 t he opinion ot thi? otrioc,t~t t}~ b~low li~ted ~ot i nt.~t ':it'~ 'tho~e h1Vi.tlg th& geat~1t z>0 Ht1bfllcy or t~\.ng ba.lloon3 J Thi3 ll.l t do8a no~ 011 ml.m ~ tP..tJ p<>tsrJ 1b\l ity that w~ ey ni' ~}lc; ~!:\a 11li~g i.J'<l!d~nt are balloon.a.. " Eq A~'t, Ch~e1 Air 'it a t.'ler Sarvioe. Watshinston 25, D. c. Uubj s Pro~ot Sl W..t" 4. 1h fQrm \\OJIJd ill i.nt.a:rropting wicD)3J~' t o a 1~ht1ng 1~ holo ed c.:s it.&:i:t~r o t :\n~r at. Co:nm~nC. t o po ~ !.'bla i!nprovl)tnerr~ ot tha Ea~ ntt~l El~enta of Inior~tionw 1n regar~ t o r~utine :r'Jllop"tio balloon tlir;hte ia 1.nv1 U.d. 5 lt is r~que$ted ~hat oor pondenca t& rorward~d to t h s Coo.mandbg General. H.eadqurtera~ A1r ~4teriel Co:-:u:a.nd ?JJlAXO-j. FOR THE 00~.1.\lODIG ro'NERALa n9 R. Cllng~rcan. C~li USlF ~ \J.d'tnUA.tlo s l-112 inq 1 AFOllt, Hq l USAF Cu.pt '1'\''" "'0tf:ski_. ~op~y;sio Lab Co.1or~ 1 lJ~a.l, 2.!!;IJJfS Colon.,l ~ U"3.~\Y Chl3f-Int~lli~bno ~pt 2013 hours 5. Occupc.tion of ob~JrvJr 3 / 3 7. Placo of obsor7~tion :lorthitl6ton, Ohio '~. Nunbor or obj0cts l Di:d-:nt:~u of objG t f ran obs'"'r v a r Tina i n s i;;ht 15 :niautea Appr~x 30CO Cclor ~ilver .3h::-. po oylindr1cal Odor d ot ectod .n.pnnr ont construct i on truil s N/3 Cl~ R.r vi th '!li;?,h ~eet r~f\ '!lou.ds, -vi.!i~il1~7 o ct...,...er &i rer&ftt stil~ tc...r.' or civ-iliM wer-e-in viciz:i ~ o~ i : ,.,. l ~ becr~rag or T isi.oL. ~e ~, ~ c leR..r lt!.tb high acs.t cic~ NJ'!E: queaticmed by IV.J Cettpbell cf t.b6 USJ.f, bo.t DOtb:. ... further -.s g&ined .. cy this intertielf with the exoeptic/. that bia wife aleo the obJect : Unlden~1fled Ai~borne Cbjact. : Majo r H.'l. C~mbbell, u.s. 1 ~ On he e~3nlng of Friday 30 .Jul 1948 f ro m n:r 1.nme t, ~7ortn"' ng~on, uhir. I ,,n., a n ooJ~c n the sootl-r11est s ly tha't di,.l r.ot lao c ll~e any o f t h e alrc~art that I ~m fan111ar with. I firs t s~w this object at exactly 2015 h0urs. h3 ob13ct anp9ared t o be cylindrical ln 3h~De, with no aoparsnt win~3 o r tail surfaces. The~e ~ere no s~and~rd mar:Ce~ lts~ts dlsplay~d, and no engine n ,)1Se3. 'l'he object did , ho~ever, e~1t a stead y silrer ~lo~. 2 I should jod~a ~h~t its ~l~lj~de dRS ~pproximat3ly ~000 feet and mo71ns Vd~Y sLJw tn t L 3c>uth~I'(P.8t c 0 tr 3e. It was in rny lin~ of' v1.~t0n .lnt.i l 2030 h ours. There w~re no other ai!"cra.rt. mil1t:.tr.] or Gt rtllan" i n the vicinity of my h e ar1D-6 ot vlB~.on. 'he oky \'ias elP,a.r with hle;h Bcattere d clouds d.nd risibility M;t ."J go0d.. Douglas Lei,6h Sky Adv Corp C/O Naval Ai~ Station Lakehurst, New Jersey W. R. Clln.gerr-.an,Col ,U3..\1 Chf, ':'ech In tel :a 11 Int,el ~partment MCI AX0-8- 6 , ,t,'QULD APPRECI.:~TE ?PORT ON OF !?.AT IOftOF Y<:U3. LIGBTErl-TEA~'I-.Al;l c:tAPT IN VI CINITY OF COLffiilBUS, OHIO, TJJ3.DIG PZR!CD 30 JULY 'l'O 3 .~G lt g. PLZ.\.3E DlRECT Rt!PLY GO~ CQI.L~C'!' ilQ, A"IC, .AT'DJ: :~Cl.\XO-3