PROJECT 10073 RECORD CARD :z. LOCATION CONCLUSIONS Crook, Rapid 0 Was Balloon P robably Balloon 3. OATETIME GROUP 4. TYPE OF OBSERVATION Possibly Balloon Local O::Ground-Visu al oundRodo r Was Airc r aft 0 P ro bob I y Ai rcroh ~ Ai,. Vi suol 0 Air- Intercept Rodor Possibly Ai rc ro h Wa s Astronomical Heteorj 0 Probably Astronomical Hilitary and Civilian 0 Pos s i bl y Astronomical 7. LENGTH OF OBSERVATION NUMBER O F OBJECTS 9. COURSE 0 O t her 0 Insufficient Data for Evaluatio n BRIEF SUMMARY OF SIGHTIHG 11. COMMENTS obs~rved t o Black with Scrambled indica t ed exhaust lil<.:e jet. Several explosions heard, one Thin clouds at 18 ,000 J..l'1 progress . the air, on the ground. Traveled very causin~ distortion one J.n VJ..SlOn ........ for thE> e::plosions. of phone calls from airlir1es dispatcher and Ra:oid City Filte r Center to C:;.lls i:11dicated !trroid City. A/G s c ra."'il bled id'3n~ir'icati on. AT l C FORM 329 (REV 2 6 SEP 52) -~ Ui4CL.l\SS IFI~D DTG IS QUOTED /"'- :J COMDR 29 ADIV GaEAT FALLS AFB MONT . ..... ::. J R C.\JTRAL ADF GRAi:DVIDJ AFB [10 :~ . . )1 ADC Zi'<T AFo COLO ~s LiSA!<' '.-J~.SH DC . 29 052 A SZRIES OF CALLS FRO!~ THE DISPATCHER J AYqYSTZR\ AI1Llt;~s J Tn.E ::tf-I.PID CITY FILTZR CE~.TER tiEi{.t: RL:CEIVE:D i3Y T H I S OR!,P.~:IZATI~ . . ::zr;A:1!.1S TO UN IJ E~!TTFIED FLYL!G OBJ ECTS H. Tni:: !-\ttZ\ . AT 253~2 ~r-.J ~..:; 1'-2 CNiP CROO:-< SOUTH DKOT.l\ SA-.11 OBJECT ~ALL 1 2 --- S SOL OF O~JECT FELL G~AilUALLY AND WAS TRAVELIN~ ST " .,iST , VE?..Y FAST , ,!\BOUT T~E SIZE OF Ar-: AIRCRAFT . iO:ISTER SAI D ~-j:::CT E:XPLODED O~JCE I.'~ AIR AND 01-iCE OVER OR ON THE GitO m.D. 03-JZCT ~.s :.:.L.li.C:~ :iiTH CXt-\AiJST LI:<E JET AL~CRAFT. T:-LERE '.VAS ~0 3 0Ui\J :XCEPT J 1~0 CV:a 2APID CITY. ?ILJTS ~HO ~fER~ SCRAXMBL~D FOR THZSS .J .::.2 A A.'lD LA.~G..:: A~'jOU~lT OF F.~LLI:JG STA?.S I.~ THE Aih .. A Th iS 02r;J\!d .7Iu\\l ;,JILL ll'lii:::::STIAGE.