I 1. r..~A r: . TIME GROUP D.i li "t.J.r y 4. NUMBC:?. OF-03J!t:TS ;i. LENCiH OF 08SERV.TION r 7. cou~se 9. PHV SIC>.L EVIDENCE P~OJECT 10073 RECORD 2. LOCATION 10. CONCLUSIO~ER: \-lEATHER PHENOMEl'U rJW>Oo +:.a~ i.nt.:!r.'?gatin of t.:l~ CCA o-u~o;;rators, .: '/Cra~ dlscr ciea ~ re fou!ld. I t is bel1ered tbs.t the:! r:idar tarset <t.,ras c.luscd by 11etacrological conditions o r ~eathe::-effecta on 11. BRIEF SUMMARY ANO ANALYSIS frr-,.m.lnc!nt blip emerge d f r o m nor::l.B.l ~1 ttcr c:-e5 of 3t:O,!)e om the station. Traclted f-:Jr ". ~-~3 tance ..:>f '3 tn i i -~li ber',r e it i'~d~d f r om the scope !lt \ d1ntance of 7 FID ScP :~3 v-329 (TOE) Prell~u ti-t .... , , hi .,,, t:noOV be und. 1953., .!a owa ~ wtrioh 1fere crubadt,ted to 6612tb A3G and 5t.h CSi .:eto ila?ortbg otr!.::er i.1 ..;apt. lenneth 3 .. Olson, 55th iRS, lf! J" HAa.lil3 ~dajo:r, UW" C l}j.e.t", Air Intel J i ~nee AIR INTELLfGE ON REPORT :a Ai :-?..c ..:.c ~ Service 8~ ':r. t,M upper air obse~a~ions it a.s noted t hat a tett;J6rat.u.re l.IlV"!"rion ex- uted .r., 'l:t Ltitme c f 3500 .feet arrl pc33 le al3C at r,he .... OCO feet l~el~ :'he f?],.., lawL~ ~1pcer air temperaturas imicate tn.e intensity of the .ll'lVers ion: ' :Tound teiBDer3.tura d.eg:xees c ..ot. , ] r"e li mj nary r.a ",hA r':!...ial .3val'.ld.t.ion o~ ~ .o u-1 1 it::!~n 1Mde j nd l : .a r a 1i ;.;nting -f . be a ph.enonena (Centigraae) i-;3 OCC'Ul':" res, a11 <l::A ,;JtU'"l0''1"j:!1 ~I"' eont.ac~ed arxi fJ.C,tJI "'fflN ':Ollt.;i~t.edo i."linrrr ;~ .;onn.l :ffl:-~ -:oosulted in trH.a .. 1., In t,'le ~ rciiv:tdual interrog~tion of the X.l penonns) i.t 1tas ~.o'.ed that so!DB diCJCr""Hlancies were "Mde L"l tr.e int~ZO?retation of the PPI sc( oer. -='ir:st., -;;-.e t i;e ot the si~.h.tlnq as gi7en by one man as aoo~ three m:lllut~a. J.t the :lat ti~, ""..e stated ittt ~ed as slight~ !'aster tP.an t '-)at of t.he C-l24o ( i mated :r-, 180 :<.-..~ 'ts or ~llJle). ~ ilstance t~e oojeet. was tracked W:1.s three mileso This .:'act l..3 po.utive as t.be aco~ e i s for accurate c!.ista.nce ::e.asmements. :iowe-rer, ;.: its ~ '!d ,.., s aa-rapid '\8 rvtteated, the longest t. :i:m :tt. eou]d be t,ncJc:ad would be :.:1 the '7:..::l.:'lity o! ona :d.ntrt~ Jr las3. On t.he other ham, if !t was tracked for t'hree ~ea i:t::. s~ could not. hc .. ve been wa:h over ~ Knots.: other discrepa=x:ies ot the ~.\ illterro::tion were tile 11eo~a a]tit\de ljnrltation. Cf:e aRn irx:Ucated it a.1 5000 t, the o~her 6000 teet. The distnce between the C-3..2h blip am the rmidenti.fied -.>lip ...-as 'l,?f>roximtely ten mles. 'l'her. was a 60 degxee angle d;.r.rerence in their ~1at ~did not pick up the unident:i fiad pretty well subst"ri~ ate tn. "'..-:. did not exiat. Had the object approached the base fro:n a.'TJ direction ~x te 30C-' !'eet. it would ~-been det-'!eted. It ce!"tai !l.lJ' would ~ve been picked ... i..rli~una ':l:l i t. pas~d be)ond the 6000 foot li!D tat ion l.e1el o! OCAc ~1St. that 12lJ .... ~ weather a."lal~:t L!rxis .a. :'acto r 1f!-....ich ca..""l :;;,robab:; 'lccot.:n't. :~r 't.nP cne- t\ F FOR:_. 111-?ART II NCL~SSIFlED JON REPORT AIR tNJELL 7feehingtoa 25, D. c. l IR-255-53 PAGE 2 oF 4 PAces 1 . .1t 0550Z, 26 February l.953, an nnidentitied radar sight.:L"lg on t~ ~A Porl ticm Indica tO!" (PPI) Scape was reported to tbi3 of !ice azx1 the Group Int.elli~nce ot.ticer. As ~n as t~ obae:-rl.ng p~noDne1 eould be corrt.acted, t.hs ilnei"!'o~iaas were The int tion obtained 1a related below. 2 o Juring tbe abeT/a t:im S/ George SJU.th, 'i'eao Cr,:.e.r, and S/Sgt ~o T. \ .~twras. a OOA Cperator- am .&/2JJ Ola~on, l!echl!nie ltel'e tho (I;A dut.y-tl!ao on v!xLs -n!1 la~ a tbe tra:tt'ic pa-ttern preparing to land s.t ~.:lule ..tir .:?a~o '!'he a1rera.i''t 1 hal ~ned !ro ~ ret \An tlight. to ./e~oer d !lB to =neehanieal trouble and ~ ~ 1 tu...-:li.."l~ ~o Thule ... ., .3/3gf, Luca:s .. n.~..u, tracld.ng the C-1.2.4 on :ri.a sco'06 a~ a posl. t::..on P9rtrri- t:l r a.-ea of t.he scot)(:J (tbo cl~r.a: a.~a J..3 >tl."t.Ol.n. a 3 112 1-ld -.J.u..l';l~ of tb~:: ; II i:l~a11a~ion) otd.bown o n & grid beading ot 270 de~ree:s, four nl.la:s :.N (~r-JS be;c"i.,~) .f'l"Om r..he station. ~... '!'he nn1rleub1.tied sight.ing was tracked ivr a distance ol' tru ~ mi.1~ be=ore i t raaed the scope at ~ distance o~ seen rnjles. Its speed ~aa ~sti~ated ~t apprxxil'&W~ ]!() lmot.. ur bett.er by the OCl cootrollenso Ut.itu:ie of the un;..denT.::.- t!acl ~ould DOt be detertrl.nlld altbougb 1D order to paaa in new of. tr.e ac~, it. 10 tld han to be abo 700 ~eet. IUXl ucder 600) teet., the scope 'e operating limitations 5. In the intar.L og~tion, it waa determinaMi that i! t.he ob -4ect had rematned ".lt a constant altitude unde r 600 0 !'eet, it would have bee n in ?iew c f t no sco~ t or ap- pro1..teq l4 w1la, t..bB :aax Laua radius or the equipment. The fsct that. trlO un- i dent.1t1ad passed out of t.lll! t~e ope at seven aile a hvii cated ~c. 1.t lfas in a cl i rrhi:1g at.t.it.wte and. paased out of t.NI object, scope dUII!t to the ecoye a al~tu:ie ] 1m:ltation ODl:T It tb object. I* paad direet:q oter the base, its t.raek would not. ~e ~n 1gt1catecl oa PPI eccpe d\11 to notal. groluJd clutter. Ita track it it approached t.be a wae DGt .... ,mi ca tad ... ern the PPr se 6. 'l'ba o-l24 wbicb 1188 en tba dUIImrlm as ot the traffic a~ the tj me ot. ta-1gbt1 "I bad apprCl Mbed the field on a cr1d headi ntt of 025 degrees w:U..1.e lett1.~ clcMD. The ah-cr.aft passeci onr the o! tba !.ield at an altit\rle ot l~OC() feet the abof'e and upon reacbi ng the north side of Tb.u'W A1 r ?ese turned int.o t~ dcsawinrl lee ~ the trattie pattern on a grid heading ot ;;o degJaes. Tbe. c-124 had been on the cbnwind leg !or q aix mile s when tr..e sighting 1rU picked up on t.he acope. The intenmt7 o t~ blip o~ the c-124 and the object T&S apprJ# iu =-.teq th8 ._ (tbe C-124 due t.o ita large 1ze giTes a large and 'Tel7 prominent. _ ~er ~tJ..eet.ion). The $peed ot t.hA m,~ied u rq?o~ed 'o-f J;.A :=eno[Vlf)l was -----'Oiii;t 'OIIIJ 53CO teet. -!l-oa HE at 15 botw 7000 feat.-fro I at ~ lnota. NCLASStF \ED