PROJECT BLUE BOOK

PROJECT
I'
1. DATE LOCATION 12. CONCLUSIONS
o Was Bolloon
9 October 1951 Paris, Illincis 0 Probably Bolloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION 0 Possibly Balloon
Local 1345 0 Ground-Visual Ground-Rodar 0 Was Aiscraft
0 Probably Aircraft
GMT_ 09/1945Z AinVisual Air-Intercept Rador 0 Possibly Aircraft
5. PHOTOS 6. SOURCE Was Astronomical
Yes 0 Probobly Astronomical
X No Civilian D Possibly Astronomical
7. LENGTH OF.OBSERVATION |8. NUMBER OF OBJECTS COURSE Other.
000 Insufficiant Data for Evaluation
NE Unknown
Not Reperted One
10. BRIEF SUMMARY OFS SIGHTING 11. COMMENTS
Pilot at 5,000 ft observed an object which Duration was not. reported Investigative
appeared to be stationary. Described as efforts did not determine duration.
round and silvery. Object began to move in a Rate of speed movement nct obtained.
NE direction. All basic data indicates that the
object was very likely a balloon, however
without motion and duration no firm
analysis can be made. Case carried as
insufficient data.

a
i the eae at Sc0o feet,
avellias 1 south of stenda
enargy Hanks .
raaaerament of nomie
DECLASSIFIED AFTER 12 YEARS.
UNCI DOD DIR 5200.10

Scetus of Investirrtion
Yore detalls of the incident will Heather balloons are
Imunc'od fron Clanite IFT miles the location
of the inoidont. It. is v O a talloon ps the
balloon would have risen it had irifted S.
rom Chanute AFB.
)
.
.
.
- .
UNCLASSIFIED
O
I
F
.

the awerpach of the
of the lewpor
(See Aopendix incident.)
II. WEKR
haze.
. .
111. 9 STALUS OF INLATIGA.ION
:
Furthor investiration revanled na :cis.It was inossible to
doternine whether or not there were any jet the areu dls to the lanse
of ti:o since the sighting.
IV. CONCLISIONS
None.
.
. +
+ .
i
1
1
I UNCLASSIFIED. .
16
E mimatre
TAL
:

the balloon. We were
miles northeast the balloon. The object
had a peculiar crossing behind
and above east west very
rapidly, first
leveling off mir aute and slowing
down, then in rp left turn and climb
at an angle nto the
southeast with a acceleration and
disappeared.
J.D. and I observed this object for ap-
proximately two minutes and it crossed
through an arc of approximately 40 to 45
degrees. We saw no vapor trail and from
past experience I know that this object was
obaervatione: V
The object was moving from east to west 1
at a high rate and very high. We tried keep-
ing the
- 37/2-
8
1

.
Aunendix A
- PALL, I111 - 22atobr 122
.
On G Catolr 1 sintol- 1ois cs. a riyto nilot cn roite
from Sre
cast n. . alitsle. Th obi ot snnoorod to he
statio .. in ns imch af 24 A not inoreorn or dinlnish in size with the
aprouch of the aireruft. The obieet then etnrted to trevel in a north-
eacterly Mreetion south of the Howmort, Iniiana, Atomie snergy ilnt.
Heatler
Cloar, britht su, no clouds or hase.
Statas of Ivestiertion
Joune'od' Aron denute tth whioh is ar Nore dotadls or the inoident will be obtainod. .outher balloons aro
of thhe inoifort. It is vory do-htful i beetely / rilen Hl or thu locstion
balloon would hove risen to a wtch hi-hor altitune if it hnd drifted St this o jeot wee a brlloon rs the
from Thsmnte AB.
-
-
DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10
14
C

Greencastle, Indiana, to Por Illinois, sighted silver object junt east of
Paris, Illinois, at 5,ooo ft. altitude. The object eared to be stationary
in as much as it did not increase or dininish in size with tho approach of the
aircraft. The object then started to travel in a northoasterly dircction south
of the lewport, Indiana, Atonie Energy Plant.
(See Appendix incidont.)
II. MATHER
Clear, bright sun, no clouds or haze.
III. STA US OF INLSTIGATIONI
Further invectigation no sienificant fncts. It was inoscible to
4 determine whether or not there vere
of time since the sighting.
IV. CONCLUSIONS
None.
-
DOWNGRADED AT 3 YEAR INTERVALS;
DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10
16
UNCI

. ..
IE . . (
51 OC7 20 09:17
o
HOR 27 ATL-ACTION
-ATE-ENFO
C-1 AM
ATTN 2EPUTY FOR INT {
:1
- .
CITE C2252 - PRIORITY
SESORE DECLASSIEVING JM
TCN O
2a HOLE (PAL APRT, TEKAE HAUTE, IND, INCIDENT
EPT
INFORMATION COPY
177

Headquarters United States
Washington 25, D. C.
1, Aircraft Coriunicator.
Haute, reported
of Special I Investigations agent that on 9 October
hours he observed an unknown unidentified nerial object directly
overheed at iulman Municipal Airport. obiect wa approximately
the size of half-dollar coin held at cm's length and was fly-
ing in a southeasterly direction The day was clear and informant's
vision vas unobstructed. Exact gize and altitude of the object
uoknown. Informant ndydsei that
sighted directly overheed at Hulr Municipal Airport which is
located aporoximately five (5) Haute, Inliana,
on Indlana Stata Roed No. 42. Acconling to the object
was approximately the Bize of a one-half dollar held at arms length;
was silver in color and flew in a coutheasterly dircction
statel that the object that he
DECLASSIFIED AFTER 12 YEARS
-DOD DIR 5200.10-
UNCLASSIFIED

and was last seen , troveling in a northeasterly , direction
Atomic Ener 6a Indiana.
3. ACTION: a1 ioal Intelligend nter,
Wright-Pattersoi
copies of this report,
. I
S DOWNGRADED AT 3 YEAR -INTERVALS:
UNCT DECLASSIFIED-AFTER 12 YEARS.
DOD DIR 5200.10
+

POICHLTY (PLIES) :-
-
TO CC CAC WAOUO ATTATR TRCL
IOUSAF CHIEF OF STAFF UAS DC ATTI DIR OF IMM (GENCE AUD
PARAPHASE NOT REQUIRED. SI tOATIAA
OF SPECIAL INVEST
BEFORE DECLASSIFYING
PRIORITY
HEOh TUX AT3OS DTD 2S GCT 1951 I PhoJEc DOE THIS DIST IS NOT
CONDUCTING ANY INVEST IEGACDIVG UNIDSUTIFICD AELIAL QUUCOT
*
SICITED OVER NOLUAU IUNI APT, TENRS HAUTE, IND 19 OCT S1. .
5 INFO TECEIVED DY CSI AGT VRO"' APT AUTHOLITIES REGARDINO
mS 9 InGtGENt
StING vOD YOuR K2 DY 'OST EXPEDITIOUS 'EanS. REF pAR 2
AD PaR A AFCS DTD 23 007 55 *s
26/04152 COT * !
1 2
Ay .t.. ,

LaNd OCT Cur approxinatdly 15 sseonds,
2. A cncond milsa
/ diatank taro (3) minutew later iniloaton the Wobjogg BRY
heyx bern jet alrerart ebaerved when the rainetcn of the me
my have dstorbed the droratt io the tha chaerrery,
APTROVED:
DOWNGRADED AT S EAR INTERVALS;
UNCLAS FIED DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10
THTIONY CIANGMPIATOR

ne vilot. dlgted
Paris, Tliinois, st 5000 1ab,
Dogast wae 2 astarly
enargy
6. Although ascurats
DOWNGRADED AT S YEAR INTERVALS;
DECLASSIFIED AFTER 12 YEARS.
UNCLA DOD DIR 5200.10
18