PROJECT BLUE BOOK

UNCLASSIFIED
ILO
Lelloyeerange flame Lelloveerange flare
Ground
Ohourvod dsrilete battar of
otion boti horiapntal and
UNCLASSIFIED

PROJECT "SiGN" I
IncidenT No. 212 $1C
W
WHERE OBJECT
REPORTED SCEN 3102
Sy
Y
11 11
Ha H
11 11
u
POSITION PoSITiON 8O -
NeIoN 0BO8RVER
oF
SIESENTHALER AVE,
DAYTON
BRIOGE
(NORTH RIVERDALE)

1. In accordance with the verbal request of Mr. MCIA,
a report of the the writer furnished:
While traveling west on Needmore Hoad with Lt Road with Lt. of BAGR-CD of BAGR-CD
at about 1715 on 3 December 19418 and just before reeching Wagoner Ford Wagoner Ford
Road a streak of light Road a streak of light was observed directly ahead in the observed directly ahead in the sky. The sky. The
sky was over cast with an occasional break between layers. The light
appeared to t appeared to over highway 25 and at an angle over highway 25 and at an angle of rom com the observer.
traveling straight up, the top end blunt and the trailing end feathered. traveling straight up, the top end blunt and the trailing end feathered.
This light at first appeared and vanished ranidly appeared and vanished ranidly as ough a jet was ugh a jet was
being turned on and off. Later, after stopping the c being turned or n and off. I Later, after stopping the c its aopearance
D2: D: and disappearance was more gradual. Its color was a
softened by haze, Its size very light red y light red
3/4 of an i 3/4 of an inch wide if appeared from 3 to 4 inches high and about
seen seen through a guage at arm's length from the through a guege at arm's length from the
observer.
G. G. Reeves,
Lt, USN,
Office of BAGR-CD
Incident 213
3
UNCLASSIFIED

of thls office, to the object.
Neadmore and Wagner Ford Roads, we studied ths motions of the flame.
It appearei to elimb at a fairly high rate of soeed. disappeared at
intervals - not gradually as if penetrating the overcaas sharply
flams suddenly extinguiahed.
Ye again atopped at the base of the incline leading 279r the railway , tracka
just wesi of dagner Ford Road to determine if the motion of my automobils
might be giving a false appearance of motion to what wes possibly the
refleation of the hidden sun on cloud layers seen through a narrow slit
plant, further observation wes dictatad by curiosity alone.
Distance and
of a phyaical souree of the 'lams at bess dowbtrnl. I do believe, however,
that during one of the several ahort intervals when the fleme wes not
visible, I did see an airoraft a short distance from whsre the flame hed
last been saen, and near where it next appeared.
213
- UNCLASSIFIED

believed to be in excess of lo,Ooo fast. My estimate of the ceiling
at this time, however, was somewnat less than this altitnde. It is
possible, therefore, that the flame Kag seen through a ceiling which
obgarved the airorert 6 itself.
The
the probable aecuracy of my judgament stence undar conditions existinz at
the tims of the above observations: the time of the above vations:
I am 4l years of aga, in good health. My vision is I 20-20 in both eyes.
I havs been in the Naval service for 24 years, in Naval Aviation for
8 ears. I am a Maval Aviation obseryer. ears. I an a Maval Aviation obseryer. I havs hed no pilot training
nor the vision and depth parceotion nor the vision and depth pereention te rivan to aviators. ivan to aviators.
The abovs obsarvatione and estimates are made four The abovs obsarvations and estimates are made four days aftar the occurance
of the inoidant desoribed, with little or of the inoidant desoribed, with little no atudy no study having been given during having been given during
the interval. the interval.
Respsctfully,
Exteneion
UNCLASSIFIED
3
!N4D#214

#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. Mou-astrononical explanations
A Balloons or ordinary airoraft:
#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, 188, 190, 1 194, 195,196, 198
200, 201, 209, 210, 217, 222, 235. 237, 239,
b Rookets, flares or falling bodles:
,5,6.7,8
C. Miscallanegus (reflections, auroral streemors, birds, eto.);
, 231, 234,
.
Do Hon-astronouioal, vident
a Lack of evidedce preoludes explanationi
#38, 44,45,47,55, 57,72, 86 88, 90, 99, 110, 117,118,
125, 127, 137, 139, 149, 150 , 213,
229, 232, 233.
ba Evidence offered sugzests no exolanation:
2, 10, 17, 21, 29, 37, 40, 51, 52, 58, 61, 62, 64, 68, 71,
76, 76, 77, 105, 111, 122, 135, 151, 152, 154, 132,
163, 172, 176, 183, 186, 193, 207, 215, 223, 224, 225, 226,
227, 256, 241, 242, 243, 244, 134,

N Da
No. 2l2: Objeot sighted three hours after release tinw of Indian-
apolis and Ft. Wayns balloons. Defective balloon could have remained
low enough to bo seen and upper winds indicate that such a balloon would
have been in the Dayton area at the time sighted. All other statements
of observers seem to indicate that the object was a weather balloon.
II

indorsoment thereto by this headquarters, dated 31 March l)i9.
2. The incldont sumaries 173 through 333 have boar chooked
against routine woather-balloon ascents made by the air Force, Navy
and feather Bureau. Corments based on this roview are inclosed.
3. 3. It is re It is regowmended that the "Guide To Investigation Of Uni- ivestigation or Unl-
dentiried Aerial Objeots" be dentiried Aerial Objeots be ohanged as follows: ohanzed as follows: Itom 13, "Diraotion Item 13, "Diraotion
of Fllght of Objeot," should be clariflod so that of Fllght of Objeot," should be clarifiod so that vertioal and hori- vertieal and hori-
sontal motiona are dietinguished if sontal motiona are dietinguished if possible, und so that motion is possible, und so that motion is
spocified as ths direction towards which spoeified as the direction towards which the objeot appears to movs. the objeot appears to mOVS
"Rolative to Radar Settings" should irolude a statenant of "Rolative to Radar Settings" should irolude a statenant of tho tho typo of type of
radar set used. radar set used.
FOR NS FOR nis CHIEF, AIR WEATIER CHIEF, AIR (ICE
131 /s/ W. a. West W. d. West
2 Lnols, N. A. MEST
1 - Inoident Summaries Lt. Col-, USAP
2 - Comments 173 thru 233 Adjutant General
7

112, 120, 121, 129, 130, 144, 153, 165, 166, 167, 175,192,
199, 202, 205, 220, 230, 240.
2. Mon-astronontoal tut other explanations
As Balloons or ordinary airoraft:
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, 138, 190, 194, 195, 196, 193,
200, 201, 209, 210, 217, 222, 235. 237, 239.
b. Rockets, flares or falling bodies:
ia, 5,6,7,8, 12, 13. 14 15. 16, 25, 66, 65, 78, 106, 107,
108, 109, 13
Misosllansous (reflections, auroral stresmers, birds, eto.)a
39,99 39, 89 , 18 , 214, 221, 231, 234, 14, 221, 231, 234,
S. Hodragtrona don-astronouloal, evident Ident
38, 44, 45, 47, 55. 57, 72, 86,
125, 127,137, 139, 149, 150, 1 ,213,
229, 232, 233.
D. Evidence offered suggeats no explanation:
1, 2, 10, 17, 21, 29, 37, 40, 51, 52, 58, 51, 62, 64, 68, 71,
105, 111, 122, 135, 151, 162, 154, 162,
168, 172, 176, 183, 186, 1 193, 207, 215, 223, 224, 225, 226,
227, 236, 241, 242, 243, 244, 134.
*
.

prober spmeing of typewritten sign Separate commenis by horisomtal limen acroes page.
SUBJECT Project "Sign"
TO MORF FROM MCTAXO-3 DaTE 21 Dec 48 COMMENT NO. 1
1. This office is engaged in the investigation of the unidentified aerial
phenomena as reported in Inclosures i, 2, and 3.
2. Your comment is requested as to the possibility of these sightings having
been of domestic origin.
INGERHA CrT/aw ned
3 Incls
1. Extr of Incident Colonel, ISAF 65310
2. Statement of Lt Chie, Tech Intelligence Div Blig 268
3 Stament 02 Intelligence Derartment P 201 G
TO MCLAXO-30 ILH AIO FROM MCRFO DATE DEC 3 01948 COMMENT NO. 2
-
IncMents,212 IncMents 212 and l3 were reviewed and a possible conclusion was found. Colonel and-213 were reviewed and a possible conclusion was found. Colonel
Albert Boyd st Albert Boyd sts that he personally observed a B-29 circling the Patterson Field observed a B-29 circling the Patterson Field
area with both landing Tights burning at the ime mentioned. The airoraft was at an
altitudeiof approximately 3ooo altitudeiof approximately 3ooo fe possibla chat the observers may have seen
the lighbs without being able t the lighbs without being able dentify the aircraft, due to the dusk or visibility entify the aircraft, due to the dusk or visibility
at that Eime. Eime.
030 016 090 016
Donld Oonald QHall
M 3 Inols Inols C11133 DONALD P. HALL DONALD P. HALL KOC/he KOC/he
n/o Colonel, USAF 3-2338 3-2338
Chief, Operations Subdivision Chief Suhdimiaio Blig 8 BldiaS
Flight Test Division Area B
UNCLASSIFIED
YF-L-18 MAR 48 2 MI SOCM (CONTINUE ON OTHER SIDE)

UNCLASSIFIED
O
Incidont a21a -- bayton, Chio -- 5 Docerber 1943
Little can bo detormined from the soanty evidoncs con-
corning this incident. Two half-socond pulses of Lihe
parently all at WILs sedn. It is unlikely taat t wny astro.toniond
i'or the object or objoots ousorred, und 32-
so guoss cu
be hazarded.
Soe ro,ort on incident ral3, w ish apyarontly refers
to the sano phanononon. to the samo phaionenon.
D D
0 7-3719-12
UNCLICSIFIED

UNCLASSIFIEQ
LSELO
)
Inoident aal3 -- Dayton, Chio - 3 Docerber 1343
This incidont rS, ropresent the suto phonomonen indi-
catod in 5212. The descriytion tere is nore dotailed.
The object oould not Have boon a metoor, since obsor-
vors state that it was in viow sevoral minutes and tnat it was
rapidly uscondin,s and disappeured overhead.
The moon was at
broaks
rance bright
th1s
D D
ever, the moon was in t evor, the moon was in the sonthwost, whereas tho observers stats the southwost, whoreas tho observers state
that thoir objeut oojeut was was in the northwost. iu the northwost. The altitude givon The altitudo givon
does a ree a proximately does a ree a proxinately with that of tho with that of tho I.con n.con
O
ST
UNCLASSIFIED

D
No. 2l3: Evidently refors to the same object as in Incident No.212,
but wIth entirely different desoription which, if accurate, makes con-
olusion on No. 2l2 obviously incorrect. If not same object, certainly
possible under existing wind conditions.
.

2. The incident sumnries 173 through 233 have boer cheokod
against routine weather-balloon ascents made by the Air Force, Navy against routlne weather-balloon ascents made by the Air , Navy
and feather and feather Bureau, Buraau, Cocronts based on this rovlew Coumonts based on this roview inclosed. closed.
dentifisd Aerial Cbjoota" bo dentified Aerinl Cbjoota" changed as follows: changed as follows: Item 15, "Direotion Item 13, "Direotion
of Flight of Object," should be olarifiod so that vertieal and hori- of Flight of Objoot," should be olarifiod so that vertioal and hori-
zontal motions aro distinguished if possible, and zontal motions ars diatinguished if possible, and so that motion is 30 that motion is
speelfied as the directlon towards which speolfied as the direction towards which the objeot appears to more. the objeot appears to more.
Relative to Badar Settings" should irolude a statoment of tho "Relative to Badar Settings" should irolude a statoment of tho type of
Padar set used.
ERVICE
/s! W. A. West
2 Inciss W. A. MEST
1 - Inoident Sumraries Lt. Col., USAF
2 - Comments 173 thru 233 Adjutant General
.

13. be some lo miles and at an altitude from l0,C
20, 000 feet
1/2 second for each oulse light
15. Time in Sight ...
16. Tactics . . Apparent
17 Sound
eastern direction
19. Substance)
.···.
20.E Effect of Objects on Clouds and/or Exhaust Trail . one
...
21. Weather Conditions Existing at the Time
22. Peculiarities Noted.. None.
* . 3 . .
. , a .
3 Sugzary Lacidont 3 9 .
(Attach a Separatej heet if Space is Needed)

when it again flasked off. It was not seen again. Mr. thought
that Mr saw one of the pulses of light. The light appeared
irregular in contour and seemed about an inch in length from the observer' s
viewpoint. Mr. estimated it to be some lo miles distant and
stated that it was some 45° above the horizon. He thought the altitude
could have been anywhere from 10.000 to 20,000 feet, The color appeared
white with a yellowish tinge and was solid. There was no evidence of
exhaust, I The light remained constant during the l/e seconds observed.
observed appeared clear.
There was no cloud interference. However, there was a layer of clouds
alng the horizon. There was some wind, No planes appeared to be in the
air at the time.
Observer states that he is mildly color-blind. Estimates his judgment mildly color-blind. Estimates his judgment
of speed of moving objects as not too accurate. He believes s he can dis- he can dis-
tinguish n size and shape at a distance fairly well. Observer is cleared Observer is cleared
for "Secret" for "Secret"