2. L.OCA liON PROJECT 10073 RECO~D Denver, Colvrado 10. CONCLUSION 1 Ci vilial'l ~ 20 seconC.s !Object ~!ore ported _hec:.d~g 260. deg 6. IY?~ CF c;~::KV~ TION emanating from the t:.a.il-:ng edge. Obje~t was esti=o.:~ad to bo ! bout the size o a B029 and was the color of aluminum. Object j . ----------------------~ flew in a straigpt line with no unusual maneuves. ' G~o d-Visual t ltJCLASSIF1ED LO'"'ry Air "'o reo ~ q s o , :enver, Col or 'ldo TO: '\';i:lc; Intelli enoe "'i'fic e r .. r y Alr force 8( s e Denver, Col or a do 1. :erer en c e tele phone o onvers3.tion 0at1"7een Ca~t : .. urtha and the uncersi~ed on 25 Au~st 1 J49, the f ollo:in ... ro~ort of radnr otivity at :enver Bomb Plot on Satur day , 20 Au;ust 1949 , is submittedz equi pment o: the ~enver o~b ~lot s not in o~er~tion b . lTo Rawin balloons "1'ere rele11~ed on 20 -u~ust 1.' 4 ') . Capt, USA' Command ing UNCLASSlFlED UNCLA55\f1EO l.e to.chmen t Lo~ry Ai r For c e Base ~onver, Color~do ~B~CT: Investigation of i .. et er ol o ;ic'\l 1\ctiv i ties in Vicinity of Denver, Col orado, on ~ven ine of 20 Au~ust 19 49 Commandinc ieneral L:)\':r y Air r'oroe Base enver, Col or'ldo ATTN: ~inz Intelli~er.ce O~ficer 1. An invest igation of all U? per air end r adar ~ctivities of ~eather a~encies at or adjacent to Larry Air Force B~se, - enver, Col~ r ado, "'liS conducted by the undersigned on t his date. 'esu l t s by or- ;anization f ollowJ a. Activities of j)et 1 9-31, 1Jth 7;eather 5q~9.'lron: {1) Surfac e observati on s (teletY?e se~uences) indicate soattered cumulu s type clouds at 7')")0 t o 8') 0 feet and an occasional thun:erstorms ~ere orevalent in the Denver area. Visibility ~as excellent ~ith no obs truc- tions. (copy of westhe r report attached). (2) Upper Air Observation consistin~ of r~dio set SCR 658 trackin~ trans~itter att ached t o ~ ballo~n ~as c on u cted tram 1415 to 1442 when run was t e rminated due t o r au- ing signal. Set ~es o~erated :)n 10~ ~e acyc1~s ~tn so1'!le interference. Cause of int erfe r ence t-'!\S undeter- Copy upper ~ind re?ort ( .~N) attached. (~) Radar observations ~ith APQ/13 were made at 1500 and report lasted a roxi~ately 21 mi nutes Pnd n othinti unusual was re; orted. b. Activities of ~.s. ther Bureau we5ther station at Stapleton Field., tenver, C~lorado: (1) Surface observations (teletyoe sequences) indicate soattered cumulu s clouds in the ~encral area ~th visibility unlimi ted. Co~y of re~orts attached. (2) Upper air obso~ation c onsisted of trac~inb of a weather balloon throu6h o?ticsl mAans(theodolite) f r om 14~0 to 14S3. Run ~s terninnted when balloon burst. (A white balloon ~as used.) Cc~y of re: ort ~13Al) att~ched. Col ot''ldo: Colora do : ~.~CLASSlF1ED I nvesti 3aticn of ~etdnroln ic"l enver, CC'lOr"~n, on -'Veni~ of' Actl~iti0s in /icinitv of Activities of ~'"~Val \'.eather Section at Buc,-::ley i e lc.!, (1) ~urface o~servutions i ic~te ~catt,rod cumulus clouds in tho area with excellent visibtllty. (I) Activities of other unitss Hone deter"''ined. 2. Analysis of wet1ther at 1630 ~: is: Scattered cumulus type clouds bases variable 8~00 t o 10000 feet, visibility of 30 ~iles or ~o~e, winds aloft 15000 feet 3 de~rees 18 !~ots beco~in~ ~30 de brees ~3 knots 3. Survey of ~ st rono~icol phenoneaa revels no outstandin~ or ?romin~nt cel estial ohenomenn. l.:S.jor, US .. \F Station ~eather Officer UNCLA55\f\ED UNCLASSIFlED UNCLASSIFlED this co" wiU lte Mfeguarclecl with tfte gr-test core until acti-is cempletecl, at which time It will Ita preporecl far clestructi-in accorclance weth Section IV. Hq. Ofr.ce lnstructi-No. 11-2. DEPARTMENT OF THE AIR FORCE HEADQUARTERS UNITED STATES AIR FORCE WASHINGTON UNCLASSH~ED THE INSPECT O R GEN ERAL USAF 14TH DISTRICT OFFICE OF SPECIAL INVESTIOATI O N S LOWRY A I R FORCE BASE, DENVER, COLORADO St: ?JECT: SIG COL03ADO, on 20 AuJUST 19~9 BY ~R. TO: Commanding -~eneral Air ~ateriel Co and ~;right-Patterson AF B"se Dayton, Ohio AT lJE.:TV C:R, Forwa r ded here~ith for you r infor tion and any action deened advisabl e is 031 Re~ort of Investigation, 24- 38 , 6 September 1949 , s ubject a s above. 1 Incl -Inv Rpt (dup ) L. J. SC:I:9~RT :.;a j or, USAF Distric t Com~ander UNCLASS\f'EO ROUTING AN'D l ~CORD 3HEET ~tr\ftlll'ERIEL COMM!..ND .? wl&ala llea~aarten. lfaaller all eeaae11ta -ntl .. ly. UH aatllerlw4 te JIIela te 41pate acaalahtw epue le nfltdftt -17 fer Plate l11ltlale af 41etater 4 IJPII. t.lephe..e ...... 11aller ell4 lecatle11 rlllt ef l11atar., Si~htinc of Unconventional Aircraft a t Donvor, Colo, on 20 nusust 19L9 to ::...CLUS COMMENT NO. Forwarded to you for evaluation. DEIJA J. AN:Z Uajor, USAF UNCLASS\FlED AMC fia Ne. I (I" 2t j.t 47) HEADQUA, :RS '. UNCLASSIFiED LOWRY AIR FOR<.,;E BASE 341STH TECHNICAL TRAINING WING DENVER, COLORADO SUBJECTa Unconventional Aircraft -"Flying Disc" Commanding General Air ~ateriel Command Wright-Patterson Air Force Base Dayton, Ohio ATTlh MCit.X0-3 1. Reference ia made to TT LUGB 5586 from this Headq;.artora, 26 Auguat 1949, relative to report of Unconventional Aircraft. Re- port is forwarded herewith in compliance with Air Intelligence Re- quirements l!emorandum No. 4, OAF, 15 February 1949, Subjects Uncon- Tentional Airoratt Into Copya Chief, Intelligence Section AC/S, Ope rat iona Bq. Tech Division .Ur Training Command Scott AFB, Illinois Report No. 000.9-3 E. T. MURTHA Captain, USAF Wing Intelligence Officer UNCLASS\F160 ~ .~CLASSIF1ED DET A :;90JD RADAR OOllB S:ORING SQUADRON ID11r7 Air Force Base Colo xaa.o SJPJECT I Raaar Activ1ty TOa Wing Intelligence Officer Lowr7 Air Force Base Denver, Coloraa.o ~ Be terence telephone conver:sat1on between Capt llurtha oo the umers1gnea. on 2; August. l'-J1+'1, t.h~ l ' OJ..L.Owlllg rt~port of r aa.ar a.ctiv1ty at Denver Bomb Plo~ on Sa turaay ;c!Q August 1 949 , is submitt.ea.: a. Bac1ar e"iuipment or tne Denver Bomb Plot Vilas not 1n operation b. No Bawin balloons were releasea. on ' 0 August 19 49 Capt, USAF Commanoing UNCLASSlFlED IS FORM 112-PART I ~I JUNE 1M (CUSSiflCA T10tl) (L&A VE BLANK) AIR INTELLIGENCE INFORMATION REPORT craft -Fl 1. Kr. a t Lowry Air For c e Dennr, Colo., reported an object in the vicinity of aouthweat Denver which he lOIU)U@;n,; might be a "tlying dbc". Observation was made i n Mr backyard a t reet, Denver, at 1630 MT, 20 August 1949 . No witnesses were ool- 1eoted. Object waareported at an altitude or 40,000 teet, traveling west on a 260 degree heading . Ob ject ma i:nt&i ned. level flight and faded from view in a pproxiD.a. tely taenty aeconds. Eatimated speed of object waa 1700 miles per hour. Object was shape d da11ar to flying wing with heat wavea emanating trca trailing edge, giving the obje c t an OT&l ahaped appearance. Kr~, who is a formor Armamen t Officer, a nd who 1a 1Nll acquainted with the conventional types of e.iroraft, eatimat e d the diameter of thia objec t to be approximately the aame aa a 8 26, or 85 feet. When lighted , the angle of elevation was approximately 85 de gr eea, The color e.nd construction of the aaterial was aimilar t o aluminwa. atated t heobject waa proba bly jet pro- 2. Weather a t 1630 MT waa acattered c umulua type clouds baaes vari a ble 8000 to 10.000 teet, visibility 30 miles or more, wi n da al of t 15 ,000 feet 300 de gr ees 18 knota beco.ing 330 de gr ees 33 knota. There ~ no outstand i ng o r p rominent c elestial phenomena. Upper Air Observation consist i n g o f radio aet SCR- 658 tracki ng trana mi t - ter attached to a balloon waa conducted from 1415 to 1442, when r un was terminate d due to fading aignal. Set w&a operated on 403 megacyolea with so~e i nterference. Cauae of interference waa undeterai~d. Radar obaervation with ~13 were mnde at 1500 and 1700. Nothing unuaual wa a reported. 3. u. s. Weather Bureau watn.r station at Stapleton Field, DeaYer, Colorado, aade upper air obserTation conahting of tracking or a weathar baloon thro~n optical ana from 1400 to 1433. Run waa terminated when boon bur at. 1 -1910th AACS Sq. Ltr. 25 AUC 4g 2 -Baae Opna O. Ltr., 25 A~ 49 3 -Det A 3903 D Ra dar Bomb Scori~ Sq. Ltr. 26 Auc 48 4 Sta. Weatmr o. Ltr., 25 Aug 48 &ICJ,; Wright-Patteraon Field (1) !)1reotor Intelligence, Hq. USAF ( 1) Al'RC Barkadale AFB, X.. 1 C.O. 14th Diat OSI, Lowry .1FB (1) LAFB Wint; Intel. o. File (1) lSI. TlUS OCX:UMEHT CONTAINS INFORMATION AFFtCTING THE NATIONAL DEI'EHSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT.~ U S C- II AHD Jl AS AMEN OED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTEHTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBIT0 BY L'W. IT MAY NOT IE REPROOUC0 IN WHOl OR IN PART, I Y OTHEf\ THAll UNIT0 ~AlQ AIR FORa AGENCIES. EXCUT IY PERMISSION or THE DIRECTOR or ltmU.IGf.NC. USAF. r ~ 1 r> (CUSS!nc:ATIDR) UNITED STATES AIR FORCE THE INS.-ECTOA GENEAAL OJFIFICE 0 ... SP"t:CIAL INVESTIGATIONS REPORT OF INVESTIGATION u.~CLASS1FlEO G .lept 4:J IIEI'OAT MADE IY REPORT MADE AT SIGHTH!G 0::' UUCmr . .;&:TIONAL rl.I 1r:.\AFT OfTICE 0, Of'IGIN Informstion r eceived fro~ Air I1telli~ence .e? -rt, o. ~.FB JJ1. 9 . 3 Base_. de.ted 26 Aurust 19 4 9 reflects th9.t on 20 A.u-'.l3t t19 ... r . reported havin~ 5oen on object in-:h6-vtcil1ity of south~est ~enver, ~nich he t hou;ht ~i ~ht b~ a "flyinb eiscn. Cbs ervation 20 l .. u:;ust 4 9 . Object "'es reported he9.din:; 260 C:e;;r ee s v1est , ltitude 4J:'Jo5 ft. ; ' s 9eed 1 7 0 0 ;.:-.H. end "'las sha""ed sinil!:lr t o a flyins -;vin with heat '\":'aves e-nana.tinz f r om the trai lin:; edge , .:;i vin_: t h e a""~;earence of being oval in s~pe. Object s esti 1ated to b e a~out tho size of a w- 26 . and v.as t h e c ol or of alu~inu~. Object' s an; l e or elev~tion ~as n?~roxi m~tely 85 de grees and r.o.s in vien f or ap~ roxi~ately twenty ( 20 ) s econd s . lro witnesses to this ohservation ';"'ere loceted oth er thon 1:.~0i~...;y. No investigation ~as conducted by District Offi c e 1 4 con cerning this matter. otSTIIIIUTIOII CDn PORWAIUl0 'TO PILl S1'AM, .:~c, ';/RIGHT-PATTERSON 2 AIP. ~TeRii.l. cou.:.um WRIGHT-~.~T ON AF BASE DAYTON, OHIO LO;.RY AF iU.SE 2 DUtrld Cor -d. Replace~ AFctJ Nllt6ilfl0be AF FORM 112-PART II APf'ftOYEO I JUNE lt41 (CV.SSiflCA TIOII) AIR INTELLIGENCE INFORMATION REPORT Hq 3415th TT Wg . Lowry AFB. DenTer. Colorado ARt II -REQPIREMENTS 1. Date of aighti nga Saturday, 20 A~at 1949 . 2. Time ot aighting a 2330Z UNCLASSIF1EO 3. Where aighted (ob aorTer'a position ) 2801 W. Dartmouth Street, Denver, Colo. (1) City, towna DenTer, Colorado (2) Dbt&nce and direction troa city o r town. road. i ntersection, etc. : Headinc W.at. 260 degreea. (3) Frca buildi~ ( a tory) yard . e t c . a Yard (4) Kap ooordinatea (if feasible) a howing latitude and l on gitude : ot deter:dDed. b. Aira ~ot applic able. o. Seaa lot applicable. 4. tlwnber ot objeetaa One. Appeared O'ftl because of f u a. 6. Obaernble oeleatial phenomena o r planeta that may account f or the aighting Bript aunny day. 8. Diatanee ot objeot tram obaerYer. a. Laterally -approximately 10 mil b. Azl&le ~ eleTation troll bori&ozu 85 degreea. o. Altitudea 40,000 teet. 1. Time in aishta 20 aeoonda. a. Appearance ot objeota a. Colora Alwtnua Poaaibly eh oou true tl'bn a (1) Bettted aile a 85 teet aoroee (2) She aa it a ppeared trom obaerTer' 1 Si&e ot B-26 11ft: ntiS DOQJ..O.r CONTAINS INFORMATION AFFtCl lNG THE NATIOIW. OCFEHSE OF THE UNITED STATE'S WITHIN TH MEANING OF THE ESPIONAGE ACT. 50 U S.C.- II MD Jl. AS AMEND0 ITS TRAHSMISSIOH OR THE REVtl.ATION Of ITS CONTENTS I N A.NY MAHNER TO AH UNAUTHORiztD PVtSON IS PROHIBITED BY LAW. IT MAY NOT IE REPROOUCm I N WHOLE Oft I N PART, IY OTHER THAH UNITED STATES AIR FOAC AGENCIES. DCCUT 8Y f'EIUIIISSION OF THL DIRCTOR OF MII..UGNI1 USAf. J.7 PORI4 112-P.lRr II AP?RO l JUNE 1948 fitil (AGENCY) (dtisSIFICATION) AIR IITEWGENCE INFORMATIOI REPORr REPORT VO. Bq Ml6th TT WiD~. Lowry APB. Derner. Colorado LAFB 000.9-S PAGI 2 OF 4 PAGES 1. Dlreotion ot tli~ht a We at -260 degree a. 10. Taotioe or meneunra a Straight line or flight. horbontal. 11. ~idence ot ezbauat. a. Color ot amolat 1 UndetermiDI d. b. Len~ and widtha heat n.por -tu&ay. o. Odor (it any) 1 lone. 4. Rate ot en.porationa LDmediately. e. Doee trail w.ry with 1ound?a Hot applicable. 12. lttect on oloudaa Mot applicable -clear. 1,. Support1 Win~ Object appeared to ban a INept baclc tlying win~. The trailin~ edce ot the win~ emitted a tuzzy beat n which pn the objeot an ovo.l sMps d ap- 1&. Propuldona Probably jl t propelled. 11. Control and 1 tabili ty1 Not ob a ern d. 11. Air cluotea lot obaerncl. 1i. Sounc!a Dhtance too great to