m, qu RTEns IR UATERIEL CO!,~\llD Wr1tht-Pattareon Air Foroe Baae Oaytcn Oh 1 o Chiet~ Air Yieather Sarvioe. Andre\'fS Air Force Bas.s \'l~ahinG'ton 25-D. c. AT111t DS3 tte iuo-3/w;s/ rQ 1. Pro~ot "S!Gli" is respor::s ibl3 for tho col lao t1on, 1nveet1- E tion and i11tt'rp:-etatio11 of dt1te. rola.ti've to s101t1n:; or tmidontlflcd tlyire objeots. Attaohod Inoidant SucLClarins 1 th;ru 172 from the !'ilea ot P;--oj"Jot SIG.tr"' nra torif rded for study and r:JOO:lll'"l)l1olt.t1oJ!a aa to ~hloh~or the 1no1d~nte DAY b e elimir~ted aa b~lloon relo&eed on routins a~nopt1o a~oents ~ tha h1r Weather s~rvioe_ the Navy A&rolo~ioal Servioe or the United St tea We,ther Bureau. Tne aumma.rie1 att.a.ohed rna.y be retelined in your hoadquart.era tor working and ret ronoe purpose a. , 2. the Air rte thor S-&rvioe ie th~ only 1\(,SflOY of ite type that baa been aekad to aaaist in th acoocnp~iahment ot Projeot siGN" except that tha United Statea ~eather Dureau h~a provided information on b~ll li~tning. R8search projects in whloh balloon are used and ~hioh ar oonduotad or eponsored by tht~J Anay. Navy or United St ~a A1r Foroe are oheok8d by the Int ll1geno$ Department ot thia Con~d. These oheoka 1\~U~ttally t\.3-de direot .fro:n tho Projoot "SIOn" Offioe. !.!C IAXO-}. The3e oh~ok2 are d1et inot from the oheok or e~opt1o balloon flight~ mAde ~J \')a_ther 8en1ce ata.tiona ot t h e Air Fore~. th$ l~avy and the Def;8Tt~nb ot CoLnll!-Orce. (U. S.~VTl:l~ther Bure6..U) roq.uested of Air l fe ther Ser"fioe. ;. le '1 th opinion or th1 ottice,that t~ below dt'nta ~roe 'thoa& having th& geat.est posaib11.1ty of being 11.~tc does noi elir:n!no.t.-8 the posaib1lity that arq of the incident are balloo~. lioted inoi- balloon.,. Thie .mdersigned officer wa~ n'1rtici-oP-ting fls T>ilot on P loc:f!] r'l'i;nt o.-; FriU:Jy, 3J .;\(Jr i l 1q4g in N.lvyo nlrc=~Lft -U Btu;o qrq)l . \t. :J"')'H~).<.i:.:r t~l~r l()lj locf'l tir.e. P t :m nltitude of .,bout ??00 ft't't on a r~ ~th'tic l e".dii.:; :Jf out 1~0 < ~rees, jus t south o: An.-"lCO$ti:.l :~1."Jul Air 3~;<:inn, .,n 0'oject \n~ si~hted ah.e.d to t he left nr.d nbout 1006 feet bcl'w ~t ;.~ di~t.:nce of ~tb:)ut 1 mile. T!le object r~?!etnbled a ycllo\o: snherc est1:!!3tee : ~ ?:=:--40 feet in Ji~?.t~l:. ~1a f"..ig~t path of the ob~rct .o~:1~1 in ~Jt'.rc.x tely a r;.::;u th ~:> ::io:-t:t directi~Jn ( _eST)i te U!~'>~r '<finds froo ~rth North t.) -md r).,.....,rtlnt y follow~c .'1 cor~t:"nt ~) t ; t'.l.:i~. ~lot Cid not !JurH e o'Jjec.. t f~;rth:r bec:.~;.:e it \'1:,.!:\ er.~ering the ...,rohitll ted fl:'tirtg nrc , ".,T, S. Gcroi tel, ,w'hl te Ti1e object c:m,e red to nilot t'> tJe a yellow, (or l. i ,h t colon~d) ":),"'l1_,..,,n :>ncl :1ttrncted Pttenti:m. nrincinallv ''oec1use of it~ flj :1ht T>ath. No ex t '!.' 1 fi tti ~c::or nt.,;. ci.Jnet t~ \'1 z"~ ob-..er11ed on t!-_e ollj:!ct. T'rc ~c:!d o f S EVALUATIC~IS EXTRACTED FROH PROJECT GRUDGE REPORT 1. A tron~loal i:!ir)\ probability& b . ralr or low probabil~Ly1 n lloon\ or ordlr:ar y f\\rorartc Ito'"k t ,. fl res o:-f t'.lling hc.lt~J>a; ~..!tsue.Jo;:.-'~>U3 (::\Jfleotio .. n, ~uro:al a':ra"-t"lH~.., b1.rd , , .:ll: '< 0 r ,, r 1 dd ao 6 plr ~0 ludn d expl.l.!.la t l o !l' jl26 --l..nacostia, Iia vu.l Air ~tation --30 n.pril 1943 .Ihero is notnins in t no de scription of this inci.:le.:1.t t o ind icate e..ctrononicnl orisL.'l of tno o b j o c t olJJ..;!..-v<:Jd. I t f\pi_>3"..rs to hn.V..) b ee n u bu.llooa~ llE..!.DqU ART RS In l.!ATERI8L C01~'l'D ~1-:-i~t-Pa t~r on Air .Foroe De.yton. Ohi\l Chi..,t ~ Ai:r 7f ather Sarviot~J, :A.ndrewf3 Air Fore" Base, A'l' .l1h DSS 1. l'rojnot ':'tSIGl\r' :tn reepor:~ibla for tto collcotion, 1.nv~:s~i- [:..tion nnd lHtt'ri):'3t1d;iOJt or' du.t r~lat1.._ to l~tin{; of u..nldont1f1 d t"ly\re ol1joo~3. Attao~wd lnoid,lnt Sw;r.tir1~ 1 t u-u 72 f'Tom :;r.e file~ () ~roj"'o+.. S l\nl" are L'onardad for study 11nd rtJ'lo~nc..a.r.ior~o a.~ to ~hi~h~or th~ ino!de~t3 ay b6 dlimir~t~d b locn rela Jdd on routin yno-p~lo lC ntl b-j ~r-11 J .. !r "l!t'JathaT ~er"7ioe, th '1f~'V}' A.::;,:rolo~l04l ; rv.loa o't" th 'lin1c d St1~'rs W th~t Hu:rouu, ri J ttaoh d .c\.y b., ~t~1ne in your htJ driuartor~ tor work1ltf: '"nd r-n .,',ronc~ purpo~.,..,. , 2. h I i r We thor .)~r'l'iC'!) 115 the or.ly ::\r;lnO!' or lto typt' ti O.,~n ... ,t1 to ~loJt l n th \COOt:lpli.~bn.,nt ot :rroj ot "SIG.i: t-:.,. the lJ",t..od St t "i'h,athul Bur hli. pro' d d 1~fo:-:r.at1on on b ll . rltnin.~.. n. 3(1) rc; pn.,j nto ~. h ieh balloo ' r e 1 d ~:Ltd h ... oh r oc:h .. lat ll d o. pOnuo~d lrf thtJ rt1V 1.:\VY r Uz1 t 2t,. A r ?\1rce Q HH'l d h; th 7l:;t llig n oo Dj l r,. -tUl. o th:\ Con :nd. Th "' c:.~ , . 'l t.tally m ' i1!"'eot 1-rom t ~ Pro jet>: $IG r Off!.o ~ ~C l 0 3. Th ~"-' .lh~Q)c:a r~ di tinot trcrn th oh..,o'c ot' y:nop~ o tn.lloon flight r:. c ' by .: iltatlocJ o:' t h Air Fore +h,., t:o.ry a~d th D p~. .. ::.an>; ~i\ op\.nion o ! thl oft'io,. ~;h.\t t!liJ.'ig nc Cl A.r;. Chiet. Air ll, th~r Senloo, 'it'a~Shington 25, D. c. u1:>j a Pro jeot "Sl cflt' ~e~ to 1~hting 1a 4. Th<ll toTm Ul~d 1n i.nterro t1ng itr.e h 1ololad 4J a matter or 1nteroet.. Co;nment a of ~h "Esfter.tial Ele nta of Info~tion" 1n oynoptio balloon flich~e ic 1nvitad. to po e1bl~ icproYeQent regurd to routi~ 5 It is r~questad :that oorrespond~nce be ron.arded to th;, Conrnani1.ng Genera.l., l:i3adqurteT3_, A1.r liaterial Co::trtand. t't8:otion .M'O I l , llq .. lJUAi' ~fa, )" l{oJ 1., !J.CnEt;P // U. R. Cllll~1rcsn. Coli t.iSl.F or ;r. !G. lJ.oCO"! Colo:nel, U.lA.P Chief., In~,,lll~ no D pt SubJ , Proj~ot !B-\r,QtiARTERS, AIR ?fEATHER SERVI:E Andrew a Air Foroe Bas~, tTa~h- !Oa Co:nms.nding Goneral, Air )Js.U,riel Co~rLd 7Trip;ht-Ps.tU,reon AiT Force 3ae, Dayton, Ohio A.:1 N t t:C L\.XO Ir."J'a::;ti-:nt1.ona by thie headt;,ua rtors re~al tr.!\t a synoptic '.'Jltl',.Jr bulloon coul d h9.ve beer. a t the location -where aj ~htin;!S :n:1r~ r po~t~"\d in' the follow inc; ire idonte. In compiling this 11nt o onn1,1orat ~on was given to the ""Hind diront ion ar.d csptH-'d o.t . t;h~ au:rfac~ and aloft at th~ schoduled tirM of balloon r~lea.3e~ and ~lto location of the neareat l'feather stAtion muklrl(; balloon obeer- CHIC:il A!R liEATISR SZ!lVlCE l.t . co 1., usag Adjutant G neral C!:ZCK- LIST -t.fr!D=:}!':' I7ItD FLY ItiG OBJEX.TS lh 1!umo o f obserV'Jf' ;.t_.n u\.8 L. I..o1MI 5 . Occupation of ob~orwr Lt C , tS ilc:rf 6 . J..rldross of ob3or10r 7 . Plnco of ob or \1'M ticrt Air Uur.abor of objoct~ r-_ 9 . Distnnco of obj oct irotr4 ob orvJr C!l~ !U ~ 10 . Th1o in si;,ht Hjs 11. ;,1 itud9 J.soo feet 12 . Spcod Diroction of fliGht Ot~ t.>r dotoctod Appnrent construetiora ~l/3 21 EJ:hn to& at t:-o i ls ~l/3 :->2 . n uathor cond.Jtion~ crroct on olouds !r/s Sz~rchos or photo~1npha rnnr.o:t' of di !lf\t)OO!l ranoo Remarks r rrn o'j~et a~,t to t ~6 pilo .. " i.o 1:i. -ht color~) l--al)Df>lt, nrd ~t.tr_,w :~ttowt~ Gn Incid>nt # 1.26 o.!.~ ito i'llj:t r.ath. Uo a.:tterual f1 t'M.ngs or at.tao~enta M~ obaes rnld c~n .>a oh}Jct. '11o "l ;.l)ed oi' ' .. o ob,1oct ":rcla ea ted \ abot:t 100 m.p.h. '.l.:~t1 .1i, ~: ... 01., t>.e ohject ns in a .r..rcajna..ely a ~outh to north direct 1m, ~0..1pi .. fi P .... ..): .;~r~l~ .rr c::1 north nort..:west, a.nu aMl&ren\ly 1oll owed a cat o"":mt. ali..i ~1rle Pilot did 1.0t pursue ohjs~ further beeause i-t' was ontcr .:.n:; ~ o ..rohibltoo : l yir.fi artia, u. J .;at 1tol, Whi~ Uo'l~tt t\Tea Cor~andi ;tS Oenersl :.taterlel C.UU.Oc ,;!'i.s..l)t :P.-t terson Ai~ Foree Bawe D.1.jton, Oh1 o At:.n t llCI A c.hed ia .a ts~r\ ot !'lying iiao on (h.\ ty il'l tho Clf nsi ft Air BrMeh ot this 1 ,h b:r .us otticer Directorate. ;10! TAYLOK 3rt lonel, USU Chle" C '-> llee. t on 3'!"'tneh Inoident j;l26 ll.llaoostia.. d escription to i:1dicato a.st ronoo i cnl b!l.lloon. ob o vod.