PROJECT BLUE BOOK

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- | = PROJECT 10073 RECunu So?

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i, DATE - TIME GROUP ( LOCATION | |
3 April 49 03/1950Z

3. SOURCE ‘eg CONCLUSION

Givilian UNIDENTIFIED

4. NUMBER OF OBJECTS
!

ONE

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Dillon, Montana

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5, LENGTH OF OBSERVATION Ti. BRIEF SUMMARY AND ANALYSIS

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Not Reported Rour observecs sighted what appeare d to be a flying disk. ' |
The object was of a metallic color and it appeared to be
rocking or rotating in a semi-circular motion. Ths object >
lefs no exhaust or sound. The object was said to have
traveled so fast that it s emed to blur, | of |

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6. TYPE OF OBSERVATION
Ground=Visual

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7, COURSE

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9. PHYSICAL EVIDENCE

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FORM
FTO sep 63 0-329 (TDE) Previons aditions of this form may be uaed.

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DOUARTSERS UNITED STATES AIR PORCE, OFFICE OF SPECIAL INVESTIGATIONS:

1. Talstyps ssqueass of local weathsr conditions in Dillon area,
2%. Renert of winds aloft

3, ‘cgienal map of Bitterrmot Range (258)

90 See —

DASTAILS 3

1. On & Avril 1949, this office reesi7ed a memorandum from a rsiiadle
corernaent agensy soncerning information oertaining to the allaged sighting of
an unconventional aircraft, so-called "lying Discs". Thia affice sondusted
inservisws of persons that were alleged to have observed the objset and inasmuch
ag AP Sorma 112 are not availadle at this Air force Base, the following rsevort
La suomittad:

2. On 3 April 1949, Mr. Sena... owns and operates a vonstruction

company: ot Oillen, Montana, reported sizhting an abject commonly mown as a “Plying
Dias” at aoproximately 1150 hours, 35 April 1949, ir, QM ot the time of the
allezed appearance of the object, was standing in the yard of his construction
company located approximately one mila sontheast of Dillon, Montana, Pacing norta
ang at aporoximately 1150 hours, 3 April 1949, saw what avoeared to bea a "Plying
Diao” as an altitude of approximately shreea to five thousand fse% over the northern
part of the City of Dillen, Montana, and approximately four mileage north of Mr.
Rae, fhe object appeared te be approximately twenty fset in diameter and

Pour sa Cive Peet in depth through the senter. The sdject at the time of sizhting
appeared to be rooking or rotating in a semi-siroular motion, % apveared ta

be sonstructed of metal such as aluminum and yas brizht on the upper side and
reflected sunlight. fhe lewer side aopeared to be either binue-zray or grsenish-
gray, wnich did net rerieet lizht. The shaps af tha soiest was that oe? a plate
or diss oissed upon mother iaverted plate or disae The edzes of the dias were
oelisved te be exsevdinely thin with sonsiderabls thiskmesa in tne middla.

‘> ‘Yhe object, after rocking from side to side far at least six sompleted
ares, orosseded in an ¢gaecerly direction and descended rapidly from the haizhs
at which it was first ebeerved down te an altitude of approximately 790 er 1000
Peat at which it again started the rosking motion. After rorking a Pow tines
and refleoting light eesh time, the upper side came into view, [5 Aad then
moved rapidly in a southwesterly direction te a position anpproximately 1000 feet
in altitude and two miles west of Dillon, Montana, at whish $1 me it arain
started the rocking motion. After rocking a faw times, it procseded rapidly
Sa @ position above the airvert eof Dillon, Montana, at aporoximataly a 1000 foot
altitude and twelve miles northeast #? Dilien, Montana. The object acain

rooksd 2 Paw times and rapidly disappeared over and Ssyond “he mountains sast of
Dillen, Montange

tn “he ebject did not show evidence of axhansat., amos, adeor 3r tomd. “he
vyisibilicy at the time or the allezed avvearansce of she d+, iast vas avoroximataly
Party: miles. The sky was cisar,. The objact did net anvear “9 hlsys any crotrudinz
fins, r%abilizersa, slota or iuct oveninzs. the 093805 Was allersd So Aarts
Sravsiled at a gpnead Paatar shan 1000 miles mer hour or so Vasc, “he woaervers anid,
“Ae Odiees avtmad to blur.

Smsation "siatz i798 (9 “he »%8errer > 4 Sawa:

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HEADQUARTERS UNITED STATES AIR FORCE

DATE

THE INSPECTOR GENERAL 100-0 23 April 13943

OFFICE OF SPECIAL INVESTIGATIONS eapaehsnetentiaiemaeaiiai _—s
=m ye ef REPORT MADE BY

REPORT OF INVESTIGATION | 450-5 (4 FRAN B. SSIGAL, SA
| TITLE | REPORT MADE AT = ip
DO 415, Great Falla AFS, Montana
PERIOD =< 9 — +++
UIXYOUN SUBJECT _8 Aprile26 Aprii 1949
"Plying Discs” OFFICE OF ORIGIN ”
Dillen, Montana _ _DO #15, Great Falls AFB, Montana
3 Avril 1949 STATUS
: CLOS SD_
CHARACTER —- =
sesame UNCONVENTIONAL ALRCAADS ——
REFERENCE =
SYNOPSIS sone, his Laan iniidal raporte ns

On 6 Avril 1949, this office rsceived a memorandum from 4 reiiadole zovsrument
agency conoerning the alleged signting of 30-called "lying Discs”. Inter-
visws of perseng raporting allszed signting or ta3se ebjsote indicated thas
they wers allszsd So havs geen 2 gonoalled "Flying Diso” in the rvisinity of
Dillon, Montana, at approximately 1150 hours, 3 dpril 1949, she object
Allecadly appearing at an altitudes of approximately thres to fivs tnousand
Peet over the northern part of the City of Dillon, maneuvering about in
several directions for geveral minutes and chen rapidly disappsaring over
and bayond the mounsiins aast of Dillone ‘ths eg Aa allsgsd to hava
baen observed by four persons, whose accounts of its size, aonesrance aad
movements largely vorrsberated each other, Ths” eSTLABTIT aE Sha oogervers

i revarded by responsible citizens of the somnunity to 59 S#yond a } uga Sioa

| PF doubdbte
awvrnt? 2 a t
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ere
CLOS=SD
D|STRIBUTION ACTION COPY FORWARDED TO ; FILE STAMP |
Commandinz General, 2| Commanding General, Air
| Air Materiel Comaand, Materisl Command, Vrizht- . oy uw
| Wrizat ;- Patterson AFB | Pasterson 173, Day~an, Ohio ae
, Dayton, Jnio,Astm:MCTATO-5 | Asta: Molio-5 | . / 7 =
1 Dirseter of Intellizenss 2 | » SF = |
i 2, SAF >’ Tashine eton, | ‘ — '
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100-9
28 April 1949

SUBJSCT: Unknown Subdject, "Flying Discs”, Dillon, Montana, 3 April 1949

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Commanding General

Air Materisl Command
TrishtePatterson Air Force 2ase
Dayton, Onied,

ATTENTION: MCIAXO-3

ss

1, Reference is made to the Kevort of Special Agent Frank
Re Saigal, of this of?ice, dated 26 April 1949, based upon
information raceived from a reailable covernment sazensy by this
office on 7 April 1949.

2» Attached for your information ars two covias of report

ef Special Agent Frank EB, Seizal, of this office, dated 25 April
1949.6

S$, Partisular attention is drawn to thse fact that the
iirection of travel of the unconventional aircraft sonforns with
che radfo beams in the Dillon range as indicated on the inclosad
sectional map inslosed with the attached rsport.

4, This report of investigation is sudmitted in this Porm
inasmuch as A? Form 112 is not available at this Air Force Base,

ao This investization is closed by this office as all
ozical leads have been invsstizated.

*
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Ll Incl. JOIFY P, ZRYWILDS SN
3% oF SA Prank 3,.Seizal panptain, USA?
i::9)} Viagtrict Commnanasr

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NARRA LYS SUMMARY:

The obtset did not show evidence of exhaust, smoke, odor or gound. The
visibility at the time of the alleged aypearance of the object was aporoxinately
forty miles. The sky was sleare The object did not appear to have any protruding
fins, stabilizers, slots or duct openings. The object was allezed to have

travelled at a speed faster than 1000 miles per hour or so fast, tne observers
said she obiseet seemed to blur,

Yn

'

oo 3 scri. 19.9, o. SBMIp, who owns ond ooerates a songtruosion

soOmpany aS Lillon, Monsana, raocorted sizhnting an objact sommonly ktown aa a
“Flying Jiac” at approxismsealy 1150 hours, 3 April 19u9- ir. i . che tine of
She Qdlaged appearance of the objsot, was scanding in she yard of hig sonstruasion
Conpany locaced @pproximaseiy one mile goutheass of Dillon, Montana, Sasing jorth
acd at avorvoximately 1151) hours, 3 Asril 19u9, saw whas acowared to be a “Flying
Jiso" at an altitude of tpproxinmacely three so fivs shousand (set over the corshern
oars of che Gity of Dillen sontana, and avproximaively four silsa norsn of Ur,
-he object itveearad so be Aapproximataiy cwenty faet in diameter and

Your so five feet in de:sA through tas enters he odjs0t% as une Gime of sizhnsing
Appeared to be rooking or Yotating in & gemiecirsular motion. i: Apoceared 9
@ congsrugted of meta, #euch as Sluminuma and wig crizshs on ‘nea upper aside and
votleostsd aumlizghte he .cwrr side appeared +o of #isher Clueewray or creenish=
sray, which did not reflest licnt. .he shape of the ovoject waa jnas of a olate
or d¢isg olaced upon another inverced plate or diao. ‘he edess of she dias were
bellavead co se exceedingly thin with sconsidersatla thiskness in she middle.

‘ne object, after rooking from side co side for as leaat, ix somplated
arog, proceeded in an sasterly direotion and descended ranidly from tne neigh
43 which it was first obeerved down to an aisitude of approximasely 790 or iCoa0
(3e% as whieh it again started the roaxing motion. ser roacing a fsw «ines
ind reflecting light escn time, <he upper side came into view, I% had then
moved sapidly in @ southweaserly direction to 4 position apyroximasely 1000 fees
in alcitude and two miles wast of Dillon, dontana, at wnish sime it azain
started che rcooking motion. After rocking a ?aw cimas, is croaeaded racidly

. tsosition above the airvors of Sillon, dontana, As aovuroximacely a LOCO f3et
\lLoisuda and swelve ailas northeass of -ilion, onsana. Re oofecs sazain
ooked a Cow Sines and rapidly disappeersd over and Seyond She souncaing vas,
wails On "anae

WINDS ALOFT OVER GREAT FALLS, MONTANA, 3 APRIL 1919

7

At 12000 faet over Montana on the above data, winds varied from
Northwest to yest Northwest, 20 to 25 mots and became strongar
at 1700 hours.

At O900 hours on the above date, winds aloft were as follows

ALTITUDS COMPASS BEARING VELOCITY

5000 feet 20 degrees 2), knots

7000 faat 250 degrees 19 nots

10000 feat 2:0 degrees 15 knots

12000 fees 299 degrees 15 knots

L;000 faet 310 degrees 17 knots
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