PROJECT BLUE BOOK

INciDeNTa 154
Ingidenv v16
TR NO 20 OoP 40
whort,dhing, S7 Path
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Civillano
TAWEROR DATY  To AtnC DATY W TO AnG
L101 80160 5 MArAR
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10-628
AGE CENTER NO. TRANSMITTING MEANS YPTOGRAPH OR CLEAR TEXT
MESSAGEFORM
CALLS STA, SER. NO. PRECEDENCE TRANSMISSION INSTRUCTIONS ORIGINATOR DATE-TIME GROUP
V
NR
ACTION INFORMATION EXEMPT OPERATING SIGNALS GROUP COUNT
GR
SPACE ABOVE FOR SIGNAL CENTER ONLY
FROM: (Originalor) SECURITY CLASSIFICATION
CO FIFTH ARMY CHICAGO ILL 5—2256
UNCLASSIFIED
ACTION TO:
COMGENAMC WRIGHT-PATTERSON AFB DAYTON OHIC PRECEDENCE FOR
ACTION INFORMATION
11 ROUTINE
ORIGINAL MESSAGE
REFERS TO ANOTHER MESSAGE
IDENTIFICATION CLASSIFICATION
INFORMATION TO: DIRECTOR OF INTELLIGENCE GSUSA
MULTIPLE ADDRESS
FOR MCI FROM ALFGF-I 01057
1AX0-3
MINNEAPOLIS MORNING TRIBUNE OF 21 OCTOBER REPORTED THE SIGHTING OF A RED BALL MINNEAPOLIS MORNING TRIBUNE OF 2I OCTOBER REPORIED THE SIGHTING OF A RED BALL
WITH A TRAIL OF SMOKE AND BURNING PARTICLES BY PERSONS AT WINONA MINNESOTA CMA
BRITTON SOUTH DAKOTA CMA ABERDEEN S D AND ST PAUL AT O60O ON 2O OCTOBER PD A COPY BRITTON SOUTH DAKOTA CMA ABERDEEN S D AND ST PAUL AT O60O ON 2O OCTOBER PD A COPY
OF NEWSPAPER CLIPPING BEING'FORWARDED BY AIRMAIL PD NOTHING IN THIS REPORT INDICATES OF NEWSPAPER CLIPPING BEING FORWARDED BY AIRMAIL PD NOTHING IN THIS REPORT INDICATES
GREATER VALIDITY THAN REPORTS OF PREVIOUS SIGHTINGS PROVED GROUNDLESS
2
25
INFOR
Regular Army
SECURITY CLASSIFICATION AUTHCRIZATION
SIGNATURE
UNCLASSIFIED
ORIGINATINGAGENCY
SYMBOL EXT 702 DATE-TIME GROUP OFFICIAL TITLE OTRION
ALFGF-I Cant J.A.KJELLSTROM 2222454 Aust Adjutant General PAGE 1OF 1
Oct-43
WD AGO FORM 11-168 This form supersedes WD AGO Form 11-168, 23 Aug 44, 18--45801-1 ☆ U. 3. GOVERNMENT PRINTING OFFICE
15 JUN 1945 and WD AGO Form 80t. 12 Mar 43. which are obsolete.
185

1880 H. Byie Park Blva.
Chieago 16, Illinois
ALFOR-I UNCLASSIFIED 5 November 1948
SUBJECT: "Reporbed Flying Disc
8 Commanding General
Hq Air Materiel Command
Wright-PattersonAir ForceBese
Wright Field, Ohio
ATTM: MCIAXO-3
1. Receint is acknowledged of request for investigation of
"Mying Saucers".
2, Investigation will be completed as cuickly as possible and
a report forwarded to your office.
FOR THE COMMANDING GENERAL FOR THE COMMANDINO GENERAL
PRENTICE O. MOROAN PRENTICE O, MOROAN
Major,Gsc
Chief, Intelligence Division
Office of A0 of 8, 0-2
184

84
UNCLASSIFIED
ALFOP-I 2nd Ind.
J/g
HQ FITM ARMI, 1660 E Hyde Park Blvd., Chicago 15, Illincia, 7 January 1949.
TOs Commanding General, Hq Air Material Command, Wright-Patterson Air Poree
Base, Wright Field, Chio, ATTNi MOlAxO-3.
disa. l. Porwarded herewith is Agent's report and EEI on reported "flying
mitnesses to testify. 2. No further statements are available due to reluotance of
FOR THE COMMANDINO OENERALA
3 Incla PRENTIO3 O. MOROAN
j1 - no Major, 030
#2 . w/a Chief, Intelligence Division
Addeda Office of 20 of 8, 0-2
# - I re Sighting of flying #I - SI re Sighting of "flying
dise²on 1 Cat 48 dise²on 1 Cat 48
/4 - Agens's rpt dtd 23 Deo 43 4 -Agens's rpt dtd 23 Deo 43
(in dup)
DOWNGAADADA
DECLASSIFIED AFT..R 12 YEARS. DODDIB 5200.10
INCIDENT NO 185
UNCLASSIFIED
185
Shles

UNCLASSIFIED
lst Ind MCIAD-3/GWP/am
Hq ANC, Wright-Pattercon Air Poree Base, Wright Field, Chio.1. Noy 1948
T0: Commanding General, Hq Fifth Army, 1660 East Hyde Perk Blvd, Chicego 15, Illinois
sightings of unidentified aerial phenomena and has been anthorized direct l. This office is engaged in a continuing investigation of all reported
March l948, mubject:"Unconventional Airoraft". commmication with Army elements by Department of the Army letter dated 25
witneases to the observations as recorted by inelosure of besic letter and 2. It is requested that Iatelligence Officer interview all available
obtain detailed signed statements of the observed phenomena.
to eid the interviewing officers in obtaining data from the witnesses. 3. Enclosed are five (5) cories of "Essential Elements of Information"
Hq and therefore this item mey be disregarded by your office. 4. Investigation of the Fargo incident has been carried out by this
General. Hq Aip Materiel Command, Wright-Patterson Air Force Base, Wright 5. All collected data should be forserded direetly to the Coemanding 5. All collected data should be forserded direetly to the Coemanding
Field, Ohio, attention: MCIAXO-3.
FOR THB CO MANDING GENERAL: FOR THB CO MANDING GENERAL:
AXO0-3 F1e cy AXO0-3 fi1e cy
2 incls 1. /c H. M. McCOY H. M. Mccoy
2. - 5 07 2.-57 Colonel.USAP
Chief, Intelligence Department
DOWNGRADED AT S YEAR INTERVALS: DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10
UNCLASSIFIED
2 185
子.5

UNCLASSIF
OFFICE OF THE INTELIIGENCE OFFICER
2465TH AIP FOPCE PESERVE TRAIN NG CENTER
WOLD CHAMBEPLAIN FIRID
MINNEAPOLIS, MINNESOTA
25 Cctober 1918
SUBJECT: Information on Flying Dises
TO: Commanding Cenerel
Air Materiel Command
Wright-Patterson AFB
Dayton, Ohio
ATIN: TSDIN
1. In compliance with AtC Letter 200-1, dtd 25 Merch 1948, the
following report is submitted,
e. Unidentified serial object eited on 20 October 1948 at
approximately O50 hours by civilians in Minneapolis, Minmesota.
(1) The following is the summery of the interviews with
witnesses.
(a) Iocation-l3th and Lake Street, Minnespolis,
Minnesota at approximately 0515 hours and at Minnesota at approximately 0515 hours and at
7th Street end 4th Avenue, Minneapolis, Minne-
sota at 0550 hours, 20 0ctober 1918.
(b) Weather clear, Beattered clouds, cloud bank Weather clear, seattered cloude, cloud bank
north-northeest. Several stars showing in the north-northeest. Several stars showingin the
east. east.
(a) Names of witaesses are as follows:
St. Paul, Minnesota
Occupation: Teletype operator
Associated Press
Minneapolis, Minnesota
Minaeapolis, Minnesota
Cccupation, Mailman
Withesaes not contacted were and
both of Winona, Minnesota and
T pilot for Northwest Airlines, Seatthe,
Washington.
(d) No ledieatioa of photogrephe having been takem.
ENT1NO185

UNCLA"TIED
Subj: Iaformation on Flying Disea 22 Cctober 1918
(a) Sketches of objeet's configuration are attached,
(f) dibjeet sited:
1. Che objeet.
Hound with tail 1/3 again as long as the
diameter of the objeet.
3. Size when related to objeet on ground appeared
to be approximately six (6) feet in diameter.
Crenge flame colored.
-4-1 Speed estimated to be three (2) times agsin as
fast es jet aireraft seen flown in this srea.
6. Objeet wae hesding in a direstion from south-
southwest to north-northeast.
7. Object following a straight course in a hori-
zontal attitude seemingly losing very little
eltitude,
8. Witnesses estimated altitude to be from 5,00o
to 10,0c0 feet. to 10,000 feet.
9. 2. No indication of souad. No indication of sound.
10。 10. No indication of exhaust treil by witmesses, but
they stete that there was a fleme trail varying
from 1/3 egain the size of the objeot to many
times again the diameter of the main body.
(g) Witmesses stories seem to conform in pattern through- (s) Witmesses stories seem to conform in pattern through-
out. The front of the objeet aeemed to be blurred
as if enveloped in smoke; wherees the rest of the
main body was a fiery orange color. The tail of the
objeet seemed to be boiling sheets of flame, which objeet seemed to be boiling sheets of flame, which
carried on back at variable distances and broke off
dropping vertically for a short distance and then be-
coming indistinguishable. The objeet was last seen
by the two witnesses, entering the cloud bank to the
north-northeast and disappearing.
2. Attaehed ere clippings from Twin Cities pepers giving account of
subjeet objeat,
FOR THE COMMANDING OFTICER,
2 Incla, ROBERT W.BAILIE
Sketches of witnesses lst Lt., UCAF
Clippings from Prip- Inbellizenee Caficer
Citiea papers
UNCLASSIFIED
DOWNGRADAD SOPRVALE 2
DECLASSIFIED AFT.R 12 YEARS. 185
DOD DIR 5200.10

UNCLASSIFIED
hatrmy
COF7 ilt
Dirct0n 0ot
150d Pastton
eme
tωs
+45 Munnapohs Munapohs
5ta45 51 Orange 10107
*
cloubank
DOWNGRADED AT B TEAR INTERVALS; DECLASSIPIED AFTER 12 YEARS.
DOD DIR 5200.10 UNCLASSIFIED 185

UNCLASSIFIED Oliver draming
coPy
Orange Direction of Fit.
Blurred area color
Flame
03 3 Flame Flame
E breaking
off
S
N4
W
UNCLASSIFIED
DOWNGRADED AT 185
DECLASHPTED
JOD DER 6200.10

UNCLASSIFIED
HEADQUARTERS FIFTH ARMY
1660 E st Hyde Park Blvd
Chicago 15, Illinois 25October 1948
ALFGF-I
SUBJECT: "Reported Flying Disc"
TO: CommandingGeneral
Air Matarial Command
Dayton,Chio Wright-Pattersm AFB
ATTN: MCI
Minneapolis Morning Tribune dated 21 October 1948, on so called "flying 1. Attached herewith is a copy of a newspaper cliphing from the
discs."
2. No further investigation is being condncted by this Heedquarters. 40 lurther investigation is being conducted by this Headquarters.
FOR THE COMMANDING GENERAL: FOR THE COMMANDING GENERAL:
Inel
As stated above PRENTICE G.MORGAN PRENTICE G. MORGAN
Major,gsc Major,GSc
Office of AC of S, G-2 Chief, Intelligence Division Chief, Intelligence Division
DECLASSIFIED AFTER 12 YEARS. DOD DIR 5200.10
UNCLASSIFIEL
INC.DENTJNO 185

UNCLASSIFIEL
Mple. Ster Tribuae
20 Catober 1948
RICHT SHR "BALIS OF FIRE" DUCK! IT'S THOSE SUACKPS ACAIN
A red ball of fire, which left a trail of omoke and burning perticles,
wee seen floating northwerd ecross the Minneapo is sky Wednesday morning by a man who said he was stone sober.
saucers" were reported. And in two other Upper Midwest pointa, variations of the fomilier "Flying
At Tin na, Minnesota, and rseid they saw a slow-
at é e,m. y-sterday. ly traveling bbjeet whien broke up into numerous tright perticles over the town
25 FEET LONG
be "a bunch of sparks with a tail." They said it was about 25 feet long end vight feet wide and appeared to
An Aberdeen, S.D., hunter said he saw red end green lights north of Britton,
S.D., early yesterday morning bigh in the eaatern sky. The lights scemed to dart into a cloud bank and plummet to earth, he said.
The marshall county sherirf, however, said there hed been no reperts of The Mershall county sheriff, however, said there hed been no reports of
plene creshes or anything else hitting the ground in the Britton vicinity.
A farm woman neer Aberdeen eaid she wea up carly doing chores, when she A farm woman neer Aberdeen eaid she wea up early doing chores, when she
noticed what she believed to be a comet shoot across the sky and disappear into the earth.
Northwest Airlines pilot fbom Seattle, Tash. Apperently the same object wee reported over Aberdeen, S.D., by
Northwest Mirlines pilot fpom Seattle, Tash.  seid he sighted a red ball, seid he sighted a red ball,
trailing fire, moving very fast from south to north a few minutes before 6 a.m. trailing fire, moving very fast from south to north a few minutes before 6 a.m.
ALL SAX IT AT 6 A.M.
Although the communities in which the mysterious lights were sishted are Although the communities in which the mysterious lights were sighted are
é a.m, yesterday. many ciles apert, there wes an almmet idantical egreement on the hour--around
in the emstern sky as he perked his car in downtown Minneapolis a few minutes St. Faul, noticed a "bell of fire"
before 6 a.m.
a postoffice employe,who lives at
was waiting for a streeteer with a compenion about Sis a.m. when both sew
bis bell of fire." "It was some distanee aaay, moving aloely and appeered to be axingfir, said.
Three weeka ago a Fargo, N.D., pilot engeeed in a dogfight with a myaterious
flying missile, his unsuccessfulpureuit of the awiftly woving cbject was withersed
by another pilot and two airport tower operators.
UNCLASSIFIED DOWNGRADED AT 2 YEAR INTEPYALS: DECLASSIFIED
DOD DER ..

ONCLASSIF-
Incident 184 -- linona, Mimesota -- 20 Votobor l46
This inoidont and ls5 appear to be a clour-out case
of a fireball. Strongest evidonco is tho fast that the object
was soen in several communities at tho sae ti e. while the
roports given in the inneapolis horning Tribme artiele con-
fliot in minor details, the general sonse of tho deserition
of all observers fits that of a fireball.
3
UNCLASSU
1
CU
S
2
10

St. Paul Tespatch
20 Catober 1918
MOHE "VHAT-IS-IT" CALIS HIRE*-NEN SKY OBJHCT INTFIGUES
An objeet in the sky, traveling rapidly from the southwest to the north-
east, caused mueh comment and many teleph no calls today.
Mesidente in both St. Peul and MShnvapolis reported Meeing it, end while
it is believed to be some sort of test bellcon no balloons were reported eloft
by Ceneral Mills, which has been conducting tests, or the Weather bureau.
One woman reported it locked like some estronomical display but me
wm, profeesor of astronomy at the University of Vinn sota, who said he had
received meay telephone calle about it, expressed the opinion it wes a balloon.
Some observers seid it looked more like a akyrocket and wes traveling too fast
for a balloon.
Mpls. Morning Tribune
21 Cctober 1918
"EAUCERS" COME BACK, CIX SVE BALIS OF VIRE "EAUCERS" COME BACK, CIX STE BALLS OF FIFE
A red ball of fire, which left a trail of amoke and burning particles, wes A red ball of fire, which left a trail of amoke and burning partieles, wes
seen floating northward eeroes the Minneapolis dky Wednesdey morming by a man seen floating northward aeroes the Minneapolis dky Wednesday morming by a man
who said he was stone cober.
And in two other Upper Midwest points, varietions of the 'amiliar "flying And in two other Upper Midwest points, varietions of the 'emiliar "flying
seucers" were reported.
Atino,Min-otand At Minoma,Minn-sota.. and saidthey saw a zlow said they saw a zlow
ly traveling objeet wnieh broke up into numerous bri ht pertieles over the town ly traveling objeet wnieh broke up into numerous bri ht pertieles over the town
at 6 a.m. yeaterday. at 6 a.m. yeaterday.
25 FET LONG
They meid it was about 25 feet long end eight feet wide and appeared to be
"a bumch of sparks with a tail."
An Aberdeen, S.D., huater said he saw red end green lights porth of Britton,
S.D., early yesterday morning high in the eestern sky. The lights seemed to dart
into a cloud benk and plummet to earth, he said.
The Yarsball county sheriff, however, seid there had een no peports of
plone crmsbes or anything else hitting the ground in the Britton vicinity.
A farm woman neer Aberdeen said she was up eerly doine chores, when she no-
ticed what she believed to be e comet shoot across the sky and disappeer into the 2
earth,
DOWNGRADED AT B YEAR INTERYALS UNCLASSIFIED
DECLATTIFIED AFTER 12 YEARS.
DOD DIB 8280.19 JIPNOTSS

Dr HYNEK'S EVALUATIONS EXTRACTED FROM PROJECT GRUDGE REPORT.
INCILENT INDEX
1. Astronomical
a.Eighprobability:
#26,27，30，31，32，33,34，48，49，59,60，66，69，70。94,
95,96,97,98,101,102,103,104,116,119,132,136,140,
147,148,158,174,184185,187,197。203,204，208,216,
219,238,
b. rair or low probability:
沪19，20，23，24，28，35。35，46，50，63，67，80，82，93，1C0。
112,120,121,129。130,144,153,165,166,167,175,192,
199,202,205,220。230。240.
2. Mon-astrononioal tut suggestive of other explanations 2Bon-astrononioal tut suggestive or other explanatlons
a a. Balloonr or ordinary airoraft:
#3,11,22,41,42,53,54,73,81,83,91,92,113,114,115, #3,11,22,41,42,53,54,73,81,63,91,92,113,114,115,
126,131,138,141,145,155,156,157,159,160,161,163,
169,171,173,178,180,182,188,190。194,195,196,193. 169,171,173,178,180,182,188,190,194,195,196,193,.
200,201,209,210,217,222,235,237,239。 200,201,209,210,217，222,235,237,239。
b. Rookets, flares or falling bodies: b. kookets, flares or falling bodies:
#4，5,6,7，8，9，12，13，14。15。16，25，56，65,78，106。107, #4，6,6,7，8，9，12，13，14。15,16，25，56，65,78，106，107,
108,109,133,170,211,218. 108,109,133,170,211,218。
a。 Misoellaneous (reflections, auroral streamers, birds, eto.):
#39,69,123,124,128,146,164,181,189,214,221,231,234.
3. Non-astronowical, with no explanation evident
a, Lack of evidence pracludes explanationi
#38,44,45,47,55。57,72,86,87,88,90,99,110,117,118,
125,127,137,139,149,150,177,179,191,206,212,213,
229,232,233.
b. Evidence offered suggests no explanation's
#1，2,10，17,21，29，37，40,51,62，58，61,62，64，68，71,
76,76,77,79,84,105,111。122,135,151,152,154,162,
168,172,176,183,186,193,207,215,223,224,225,226,
227,236,241,242, 243,244, 134.

Inc1dent No. 193 -- 24 0ot. 1948, between 1100 and 1330 GT,
Neubiberg, Gormany.
An Air Force Officer heard a sound like an F-li7 at high altitude
looked up and saw a dark object shaped like a coin at undetormined al-
titude, 600 elevation flying southwest at fast undetermined speed in
lavel flight.
ANC Opinion: Thore is nothing to controvert the conolusion that
this object was a conventional aircraft at a range outaide the limit
of visual resolution.
0
0 7-37/2-10

C
IUNCLASSIFIED
Incident #193 -- nour Neuviborg, Germany -- 24 Ootober 1048
It is very unlikely that this incident has any astrono-
mical explanation. No trail nor luminescence was observed, and
the object flow a straight and level course. Time in sight (two
ninutes) also offectively rules cut any possible astronomical hypo- .,
thesis.
Could the object re orted here have been a convontional
airoraft viowod in foreshortened aspect?
8 8
UNCLASSIFIED
3

24 007 48
With loh ineidents thus eliminated, there remain thirty-four
mich contain seme evidenee but/ lhave no apparent ready explanation.
Thie statomeht is true only under the assuiption thnt the ovidenee is
ae sphod as reliable and aceurate, When psychkelogical and physio-
tor eal factors are taken Anto censideratiom, all of these ineire
ee astplainad rationaliye as pointed evs by Rand Crrporestrn
Mhos of Alr V'atorlel Gommand Aarorkedtes?, Laboratory (sne
4 =(1),
Air Matarjel Gom and Aoro- edioml Lsnom bnmy
PNC Imetd nto conelaarod)
There me sufficient psyehelogieal enplanations for tho PMCEL
unidentifled flying objeets to provide plausablo enplanations For m
porte not otherwise explainable. Phems errors in adartifyang ro
timuli resule chierly from irmbility to estimate speed, distaneo,
A7O.
All of the romaining 34 inoidents ars trented in detail is en
roport. Thene incidents form no patsern in regard to area of s:
sype of objvet, or memner ef porformanse. There are indieatir:
aver, thy; pono sightings voro influaneed by sarlior raperts,
robably voili not heve been conmidar d umusval or peportie
pen no pibltuity. on no pibltuity.
Projeet Grudgo
6. may ef Mio Erolmntten gf Ro mintrg Raparcs 6. cmay ef Mio Brolmntien gf Ro mintrg Raparos
Vil. Se rry or ArC Evaluation of Pemcininn Reports Ce rrry o? ArC Emluation of Pemcining Reports
The cemaining unoxplained incidents (seo Appendix ap") ean
for wormen shamoteristies, Two of thon, by statenents of the repor pp
ild not hve boen made had thke witnesnes not road of the ?'t. Ranip
neldont (Thaldint No. l7). Fost wore distributed without pattem
roughout the Knited States. A few ware outsire the U. S. No twe
Cnseriptions of appearance or perfomance were exactly alike. The re-
"orsed siphttnge occtirred at varlevs bimes of day and year.
In tho following suotion of this roport, cach remaining woxphu
meident is considored separately, It is not tho intent to sunerally d..ell
3 character of obsprvers, but each casn lms undesirable elements,
not be disnogarded, Thu mumurical denignation is merely the cave
sep of the i: cident in the project files.
2, 20, 27, 21, 29, 35, 37, 40, 51, 53, 62, 64, 63, 71, 75, 76, 77, 79, 21,
211, 122, 134, 135, 151, 152, 154, 162, 168, 176, 183, 196,(193, 207, 215, 230,

HEADQUARTERS
AIR WHATHER SERVICE
Andrewa Air Force Base
Washington 25, D. C.
In Roply
Refor To: AMS DSS 11 May 1949
SUBJECT, Unidentified Flying Objeots
TO Comanding General
Air teriel Comand
Wricht-Patterson Air Force Base
Daytor, Chio
ATPN: MC1AXO-3
1. Refererce is made to lotter from your hoadquarters, ICIAXS,
dated 9 Karoh l9l9, subject "ünidentified Flying Objeots," ana first
indorsemert thereto by this headquartars, datod 31 Maroh 1949.
2. The ineident aunaries 173 through 233 have been cheoked
against routine weather-balloon asoente made by the Air Force, Navy
and Heather Bureau. Cormenta based on this roview are inclosed.
3. It ia recommended that the Guide To Invostigation Of Uni- 3. It ia recommended that the "Guide To Invostigation Of Uni-
dentirled Aorial Cbjeots" be changed as follows, Itam 13, "Direotion dentifled Aorial Cbjeots" be changed as follows, Itam 13, "Direotion
of Flight of Cbjeot," should bo olarifiod so that vartioal and hori-
zontal motions are distinguished if possible, und po thet motion is
apecified as the diroction towards which the object appears to move. apecified as the direction towards which the object appears to move.
"Rolative to Radar Settings" should irelude a atatomant of tho type of "Rolative to Radar Settings" should irelude a atatoment of tho type of
radar set used.
FOR THE CHIEF, AIR WEATIER SLHAVICE FOR THE CHIEF, AIR WEATHER SLAVICE
/s/ W. A. West
2 Inola: W.A. WEST
1- Incident Summaries Lt, Col., USAP
2 - Comments 173 thru 233 Adjutant Genaral

No. 193; No date given; very little information; canmot de-
termine objeot.

D HYNEK'S EVALUATIONS EXTRACTED FROM PROJECT GRUDGE REPORT.
INCILENT INDEX
1.Astronomical
a. Eigh probability:
26，27，30，31，32，33，34，48，49，59，60，66，69，70，94。
95,96,97,98,101,102,103,104,116,119,132,136,140,
147,148,158,174,184,185,187,197,203,204,208,216,
219,238.
b. kair or low probability:
#19，20，23，24，28，35，35，46，50，63，67，80，82。93，1C0,
112,120,121,129,130,144,153,165,166,167,175,192,
199,202,205。220,230,240,
2. Non-astrononioal tut suggestive of other explanations Z.Non-astrononidal cut suggestive oi other expianations
a. a Balloons or ordinary airoraft:
#3，11,22，41,42,53,54,73，81,83，91,92,113,114,115, #3,11，22,41,42,53,54,73,81,83,91,92,113,114,115,
126,131,138,141,145,155,156,157,159,160,161,163,
169,171, 173,178, 180, 182, 198, 190, 194, 195,196, 198, 169, 171, 173, 178, 180, 182, 198, 190, 194, 195,196, 198,
200,201,209,210,217,222,235,237,239。
b Rookats, flares or falling bodies:
#4，5,6。7,8,9,12,13，14，15,16，25,56，65,78,106，107, #4，5,6。7,8,9,12,13，14，15，16，25,56，65,78，106，107,
108,109,133,170,211,218.
o。 Miscellaneous (reflections, auroral streamers, birds, eto.); Miscellaneous (reflections, auroral streamers, birds, eto.):
3989,123,124，128,146,164，181,189,214,221,231,234.
5. Non-astronomioal, with no explanation evident
a. Lack of evidence preoludes explanations
#38,44,45,47,55。57,72,86,87,88,90,99,110,117,118,
125, 127, 137, 139, 149, 150,177,179, 191, 206,212,213,
229,232,233,
b. Evidence offered suggests no explanations
#1，2,10，17,21,29,37,40,51，52，58,61,62，64,63,71。
75,76,77，79,84，105,111,122,135,151,152,154,162,
168,172,176,183,186,193,207,215,223,224,225,226,
227,236,241,242,243,244,134.

UNCLASSIFIED
Incidont kl8e, a, b -- Minneapolis, mim.osota -- 23 ctober 1943
The object reported in this incidont is the same as that
in rls4, seen from a differont locality. The desoription of the
incident leaves no question b t that the objoot observed was a fire-
ball。
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UNCLASSIFIED
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IEADQUARTERS
AIR WHAPHER SERVICE
Androws Air Force Bass
Mashington 25, D. C.
In Roply
Refor To: ATS DSS 11 Kay 1949
SUBJECT.Unidertified FlyingObjeots
TO Commanding General
Airteriel Comand
Wright-Fattorson Air Force Base
Daytor, Chio
ATTN: MC1AXO-3
1. Refororce is mede to letter fros your hoadquarters, CIAXS,
dated 9 Karoh l9l), subject "ünidentified Flying Objeota," ana firat
indoraenent thereto by this headquarters, dated 31 Maroh l)49.
2. The ineldent suamries 173 through 233 have been cheoked
against routine weather-balloon ascents made by the Air Force, Navy
and Weather Bureau, Cocments based on this roview are inclosed, and Weathwr Bureau, Cocments based on this roview are inclosed,
3. It ia reuommended that the "Guide To Invostigatlon Of Uni-
dentified Aerial Cbjects" be changed aa follows: Itam l3, *Direotion
of Flight of Objaot." should bo olarifiod so that wertical and hori-
sontal motions are distinguished if possible, und so thet motion is sontal motions are distinguished if possible, and so thet motion is
spacified as the diroctlon towards which the object appears to movs. specified as the diroctlon towards which the object appears to mows,
"Rolative to Radar Settings" should irolude a statement of tho type of
radar set used.
FOR THE CHIEF. AIR WEATHER SLRVICE
/3/ W. A. West
2 Inols: W. A. WEST
1 - Inoident Summaries Lt, Col., USAP
2 -Comments 173 thru 233 Adjutant General

20
No. 184 - 185: Very controversial accounts of speed (0 - 3 tines that
of a Jet); desdription sounds like burning pilot balloon sounding with
lantorn. However, nearest release was two hours earlier at St. Cloud,
Could have been this pilct balloon sounding assuming a leaky balloon to
keep it at a low altitude. Not at all probable, but possibly a balloon.

INCIDANT SUMMARY SHENT
Incident No. 184
1. Date and Time of Observation: 20 Oct 1948 0600
2.Where Sighted:ssmx Winona, Minnesota
3. Observer's Position: ground
(i. e., ground, air, control tower, etc.)
4. Name and Address of Observer:
5. Occupation and/or hobbies: N/s
7. Number of Object(s) Seen: 1
8. Size of Object(s): 25 feet long by 8 feet wide
9. Color of Object(s):N/s
10. Shape (Sketch if Possible) N/S
11。 Nature of Luminosity: "sparks"
(directed beam of light?)
12. Altitude of Object: N/s
(estimated)
13. Estimated Distance of Object from Cbserver: 13. Estimated Distance of Objeet from Cbserver:
14. Estimated Speed of Object: Slow Estimated Speed of Object: Slow
15. Time in Sight: N/S 15. Time in Sight: N/S
16. Tactics: Broke up into numerous bright particles
17. Sound Made by Object(s): N/s
18. Direction of Flight of Object(e) N/S
19. Apparent Construction: "a bunch of sperks with a tail"
20. Effect on Clouds: N/s
21. Exhaust Trail (Color of): tail
22. Menner of Disappearance: broke up into numerous bright particles
23. Weather Conditions at Time of Sighting: N/s
24.Peculicrities Noted: slow speed end the fact that it broke into mumerous
25.Summary of Incident: bright particles
(over)
(See attached page)

Incident: 184
Taken from Minneapolis Morning Tribune
21 October 1948
"LUCK! IT'S THOSE SAUCERS AGAIN"
... At Winona, Minn., and seid they saw a
slowly traveling object which broke up into numerous bright particles over
the town at 6 A. M. 20 Oct 48.
They said it was about 25 feet long and eight feet wide end appeared
to be a"bunch of sparks with a tail."
NOTE: The above witnesses were not contacted from Wold Chamberlain Fld,
Minneapolis, Minn. See Incident 185 for report of
and

INCIDENT SUMMARY SHENT
Incident No. 185
1. Date and Time of Observation: 20 October 1948 at approx 0550 hours
2.Where Sighted:Minneapolis, Minnesota
ground
(i. e., ground, air, control tower, etc.).
4. Name and Address of Observers:
5.Occupation and/or hobbies: teletype operator
6. Attention Attracted by: N/s Mailmen
7. Number of Object(s) Seen: 1 (seen at two different locations, in Minneapolis)
8. Size of Object(s): 6 feet
10. Shape (Sketch if Possible) round with tail 1/3 egain as long as diameter of
ll.Nature of Luminosity: 11。 Nature of Luminosity: object. See attached drawings object. See attached drawings
(directed beam of light?) that of boiling sheets of fleme
12. Altitude of Cbject: From 5,c00 to 10, 000 feet Altitude of Cbject: From 5,c00 to 10,000 feet
(estimated) (estimated)
13.Estimated Distance of Object from Observer: 13. Estimated Distance of Object from Observer: : N/S
14. Estimated Speed of Object: 3 times that of jet aircraft
15. Time in Sight: N/s
16. Tactics: Seemed to follow a straight course, in a horizontal attitude
losing very little altitude.
17. Sound Made by Cbject(s): No sound
18. Direction of Flignt of Cbject(s) South southwest to north northeast.
19.Apparent Construction: "flame"
20. Effect on Clouds: Disappeared behind cloud banks to the north northeast
21. Exheust Trail (Coler of): boiling sheets of fleme
22. Manner of Disappearance: Behind cloud bank to the north northeast 2
24. Peculierities Noted: Front of the object seemed blurred as if enveloped
25. Summary of Incident: in smoke - the rest of the main body was a fiery
orenge color
(See attached page) (over)

Incident: 185
Object was sighted from 1yth and Lake Street, Minneapolis & at 7th Street
end 4th Ave., Minneenolis, by , teletype operator and
Mailman, at aoproximately 0550 hours 20 October 1948.
Witnesses stories seem to conform in pattern throughout. The front of
the object seemed blurred as if enveloped in smoke; whereas the rest of
the main body was a fiery orange color. The tail seemed to be boiling
sheets of flsme which carried on back at variable distances and broke
off dropping vertically for a short distance and then becoming indistinguish-
able. The object wes last seen by both witnesses entering the cloud bank
to the north-northeast and disappearing.
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