3. DATETIMI! 0~ 7. LEHOTHOr OIS!RVATIOM PROJECT 10073 RECORD CARD 2.. LOCATtOH He::.g!lts. 4. TYPE Of OBSERVATION 0 Groun,._ Vi auol Y..Yo GroundRodor 0 Air-Viauol 0 Airlnternpt RaciQr N.:ilitary NUMBER OP OaJECTS CONCLUSIONS 0 Wos Balloon 0 Pro~o~ly Balloon Pouibly Boll_,.. 0 Woa Aircraft Probably Airaolt 0 Pouib!y Airuoft 0 Was Astronomi c ol 0 Pro~ably lutronomicol 0 Poui~ly AstroftOmicol 1!') lnaufficiont Data for Evoluotion 0 Ul'\known 10. BRIEf SUMMARY Of SIGHTING j ObJtS :t.O tral.l O.t; ::_;;.:.. 11. COMMENTS 'l'y11e of raaar not i::::J.uc.eJ . speed azimuth :..:..;o, elev u.."l..'l.mo ... -n. Lost in g::_;: {adn.r an3.ly.;t not abae to cvc..:..~te uithou clutter. Spee:. ::::ta.bli:>hed at 40~0 knots. : owlne; scope operation chara:::';eri::;tic:; as i.nsu.fficicnt data. ACTIOlf: CIN-17 MNNZCZCHQE561ZCYJE049 PP RJ:::ZHQ OEPAaTWNT Of ltfE AIR fOGf STAif MiiSAGE BW401 Mlf~ C 0 M I N G DE RJEDAH 46 FM C~ADS TRUAX FLO WIS TO ~J~FAL/ADC ENT AFB COLO ZEN/32ADIV TRUAX FLO WIS RJEDS~ATIC WP AFB OHIO RJEZH~/COFS USAF WASHOC RJEZ /OSAF WAHSDC UNCLAS CHOIN 1100961. SUBJECT: UFO. FOR INTELL- IGE~c::: <ADOIN, 30-0IN> AND SAFOI. REF PAR 15, AFR 200-2. A. <1 >-<3> NOT REPORTED. C4> THREE (5) IN TRAIL (6)-(9) NOT REPORTED. B. C1> HIGH SPEED <2> NO ELEVATION; AZIMUTH APPROX 115 OE:GnEES C3) SAME AS (2) (4) NO MANEUVERING (5) T't!IO INTO GROUND CLUTTER, OTHER UNKNOWN. (6) ONE MINUTE EACH. C. (1) 38 SSG 22 MIN WEST 42 DGE 05 MIN NORTH. C2> GJCN0105. F. <1> ALL EMPLOYED BY THE MARTI~ COMPA~Y. (2) LT 2ND LIEUTENANTS DCPAQTMfNT Of lttS N.i FOI'f STAff MUSACE 8UKJ:I Par~e 2 of 3 PAGE TWO RJEDAH 46 US ARMY, 45 ARIILILLARY BRIGADE, ARLINGTON HEIGHTS, ILLINOIS <4> 15 MILES C5> SCATTERED (6) NONE. H. NONE. I. NONE J NONE REPORTED K. 2LT BORLAND 45 ARTY BRIGADE <2> SEE M, BELOW. (3) NO~ L. NONE M. THE FOLLOWING STATEMENT WAS SENT WITH THE REPORT OF THIS SIGHTING: AT APPROXIMATELY 0755Z, 7 NOV 1961, SEVERAL ~MPLOYEES OF MARTIN COMPANY AND ARMY PERSONNEL AT COMM UN IC AT OR <HE ARTY BRIGADE) OBSERVED THREE UN U 5UAL RADAR RETURNS ON THE ~O~G RANGE RADAR. THREE OBJECTS WERE OBSERVED APPROCHING THE CHICAGO AREA FROM ESE WITH 30 SECOND SEPARATION AT SPEEDS IN EXCESS OF 4000 KNOTS <FOUR THOUSAND KNOTS> THE RADAR RETURN WAS VERY SHARP WITH THE VIDEO TILTED ABOUT 30 DEGREES DUE TO THE GIGH SPEED OF OBJECTS. AN ATTEMPT WAS MADE TO DETERMINE THE ALTITUDE OF THE OBJECTS BUT THEIR SPEED WAS BEYOND CAPABILITY OF THE EQUIPMENT. THE FIRST T~O OBJECTS VANISHED IN THE GROUND CLUTTER AND DID NOT REAPPEAR. THE THIRD OBJECT VANISHED ABOUT 1a0,000 YARDS PRIOR TO REACHING THE GROUND CLUTTER. H1MED IATEL Y AFTER THESE SIGHT INGS, THt: EQUIPMENT WAS TESTED AND FO UNO TO BE !~4 PERFECT OPERATING ORDER. STATEMENT TAKEN BY DEPAQTMENT Cf Y::iC AIR fOK-f STAff M~SAG~ BRANCH Page 3 of 3 PAGE THREE RJEDAH 46 FORREST L POSKA, 2LT ARTILLARY, AIR DEF ARTY DIRECTOR, CHICAGO 17/2046Z NOV RJEDAH