DOW-UAP-D097 — Project Sign Progress Report, 1948

TL;DR

April 1948: when the Air Force’s “progress” was still in the draft stage.

• DOW-UAP-D097 PDF, Department of War, April 1948, various locations
• Reports 100 UFO sightings 1947‑1948; hover, rapid motion, size changes
• Data insufficient for positive identification

AI summary

A 1948 Project Sign progress report details unidentified flying objects with descriptions of their shapes, colors, sizes, and movements. The document includes incident logs with dates, locations, and observations, noting objects ranging from small to large, with varying speeds and shapes. It references 100 UAP incidents from 1948, describing saucer-like or disc-shaped objects, and mentions aerodynamic studies of annular and low aspect ratio wings, including historical experiments from the early 20th century. The report also covers aerodynamic research on disc wings and gliders, referencing wind-tunnel experiments and early disc-wing aircraft designs. No definitive identification of the objects is made, and the text includes discussions of historical aeronautical developments and flight characteristics.

Full text

Page 1

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Authority:

•

•

NND927545

HEADQUARTERS
AIR KATERI BL COWAND

MClA/JCB/amb
Wright-Patterson Air Force Base

2DjytAPH 0i948

KCIA

SUBJECT,

Projeot "BIOi" •

TOs

Chief of Staft
United Statea ilr Poree
Waahington 26, D. Co
ATTN s Director ot Int-,lligenoe

l. Thie ie an initial report on unidentified flying objecta aa
direoted by Rq, USAY letter dated SO Deoember 1947, signed by General
L. C. Craigie, subjeot1 •r1~Jng Diaea~. Qtarterly reports will be
submitted beginning 1 July 1948.
2. Ae a reeult of thia letter, Pro~ot HT-304 was a.otiTated on
26 January 1948 and Technical Inatruotion 2185, dated 11 Pebruaiy 1948,
wns published. Present ti.lea on Projeot •s10~• represent a oonaolida­
tion ot reports received directly by Hq, AMC and thoee forwa.rded by
the Direotor ot Intelli gence, USAF.

~. Schedules of activities of lighted night-flying adTertising
blimps have been secured a.nd crosa-oheoked at thi.a Headquarters to
consider them as a possible souroe ot incident nporta.
4. Inoloaure l represents a tabulation am breakdoWll of all
available reports through l February 1948.
5o The following ia a series of interesting observation• that
were noted when rev19Wing the many incident 0ase11

a. Rigll rate of olimb, aa well aa the apparent a.bi li ty to
remain mot1onleu or hover for a oonBiderable length of tiu o
bo The objeot was described aa being oval, d1ac or 1auoerehaped ~l times.

o. Assooiated sound was preae?It ll tim.H o
d.

Reported sizes have varied from that of a 26-oent pitoe
to 260 feet in diameter, and from the aise or a puraui t plane to tht
ePulk of six B-29 airpl.&nea.
,

NND 927545

t

Page 2

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..
AMC
Subject,

2 3 APir 1948

Project "SIG!i"
e.

»umber of objects per aighting,
Objects per sighting
Number of eightioga

l
77

2-6

6-10

over 10

21

8

9

t. Exhaust traile were reported 23 times.
g. Speed has been eetime.ted throughout the entire range from
very alow or hovering to supersonio.
6. Incloaures 2 and 5 are anlargementa of photographt taken of
Incident f40o Inoloaure 4 1s an evaluation of inolosure 2 by thie
Headquarters. Attention 1s iovi ted to the marked aimilari ty between
incloaurea 2 ands. and inoloaure 6. Similarity also exiata between
inclosures 2 and 3 and oonfigur&tiona illustre.ted in inolosure 6.
7. Representatives from tbie Headquartere visited Dr. Ining
Langmuir of the P~sea.rch Laboratories. General Electric Comp&ny.
Schenectady, N. Y. to discuss Project "SIGN". It was the opinion of
this acienti st that prosent a.vai l!I. ble data does not encompass suffi­
ci ent information to enable a positive identific~tion to be ma.deo
Dr. :.a.n&muir was relucts.nt to consider the so-called "flying discsM
as a reality. However, it io be'lieved at this neadquarters that it
is possible to oonstruot a low aspeot ratio airoraft that would d~pli­
oate many of the appearance and performance oharaoteriatics of reported
"flyint discs~. Experts have agreed that thie would be possible through
the intelligent application of boun:lary layer control.

FOR THE COMMANDING GENERAL:

~Me~

J

6 Inols

l.
2.
3.

4.
6.
6.

H. M. ticC~!1.
Co lone1. US&F
Chief ot Intelli gence

Tabulation
Photo
Photo
Eval of Incl 2
Horten Parabola
Biology of I'lying Se.ucor

2

~

NND 927545

Page 3

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•

CONFIDENTIAL

Incident
No.

Date

Hour

Location

1

g Jul 47

0930

la

g Jnl 47

lb

-

N<>•

Obser,ed

Sighted

P'rom

Muroc ilT Field, M'uroc, Calif.

2

Ground

0930

Muroc,Air Field, Muroc, Cali£.

2

Ground

e Jul 47

0930

Muroc Air li'ield, li&uroc, Cali.f.

2

Ground

le

g Jul 47

09tl9

Muroc .lir Field, lluroc, Calif.

2

Ground

ld

g Jul 47

1000

lmroc Air Field, Muroc, Calif.

3

Ground

le

g Jul 47

1000

Uuroc A.Lr Field, itiuroc, Calif.

3

Ground

2

g Jnl 47

1200

Muroc Air Field, Mu.roe, Call!.

1

Ground

~

7 Jul 47

1010

Iifuroc Air Field, Vuroc, Calif.

1

Ground

4

$

Jul 47

1150

Area 113, Rogers Dry Lake, Muroc
Air Field, Muroc, Calif.

l

Ground

5

4 Jul 47

1305

~ortland, Oregon

5

Ground

6

4 Jul 47

1305

1llli.lwaukee, Oregon

3

Grotmd

7

4 Jlll .47

1305

Portland, Oregon

1

Ground

~

1305

Portland, Uregon

3

Ground

1305

Portland, Oregon

2004

Roi se, Idaho

ll

4 Jul 47
4 Jul 47
4 Jul 47
4 Jul 47

12

4 Jul 47

1305

Vancouver, Washington

1~

4 Jul 47

1400

14

4 Jul 47

15
l.6

9
10

undetermined wt atated
5

Air

l

r.:.r ound

20-30

Ground

Portland, Oregon

4

Ground

16}0

Portland, Oregon

1

Ground

4 Jul 47

1700

Portland, Oregon

3

Ground

4 Jul 47

ll.00

Mount Jefferson near

4

Ground

9

11r

not stated Seattle, Xashington

Redmon, Oregon

17

2ll. Jun 47

l!S

not stated not stated Toronto, Canada

1

Ground

19

20 Oot 47

1320

Dayton, Ohio

2

Ground

20

20 Oct 47

1100

Xenia, Onio •

l

Ground

1500

14t. Rainier,

a.shington

CONFIDENTIAL
NND 927545

Page 4

CO~FIDENTIAL e
Incident

No.

Observed

Sighted

From

l~

not stated

No.

Date

dour

Location

21

29 Jun 47

1645

Des Moines, 1owa

22

21 Jwi 47

23

30 Jun 47

1745

Boise, Idaho

1

Ground

24

12 J\111 47

1&5

Weiser, Idaho

2

Ground

25

4 Jul 47

2345

Vfest Trenton, t~ . J.

l

Ground

26

10 Jul 47 not stated Harmon Field, Newfoundland

l

Ground

~

10 Jul 47

l

Ground

2g

24 Jun 47 not stated Idaho

l

Ground

29

23 Jun 47 not stated Bakersfield., Calif.

10

Ground

30

7 Jan 4!

l ~ T Lockbourne AB, Co1umbus, Ohio

1

30a

7 Jan 4g

1925EST Lockbourne,!B, Columbus., Ohio

l

Oroum

30b

7 Jan 4a

1915EST Lockbourne AB, Columbus, Ohio

l

Ground

30c

7 Jan 4g

1940

Lockbourne il, Columbus, Ohio

1

Ground

31

mid-December early a.m.

l

Ground

1

llr

7 Jan 41! 133&.l'T,OO"' Oocbnan Field, Ky. (south of)

1

Ground

7 Jan~

l4000ST Godman Field, Ky.

1

Ground

7 Jan~

1320CS'J.' · 0odman Field, Ky.

1

33c

7 Jan 4g

J..420 CST 2100 from Oodman Field, Ky.

1

Ground

33d

7 Jan 4a

Gedman Field, Ky.

1

Ground

33e

7 Jan 4g J..430-1600

Godman Field, Ky.

1

Ground

331'

7 Jan~

Godman Field., Ky.

1

~

33g

7 Jan~ 11!54-19()6

lladi.eomi-1.le, Ky.

l ,l -

34

13 Oct 47

05}0

35

12 Nov 41

GQ'l.Jr a.m.

32
32

Ground

about noon Spokane, ·1ashingt,on

Hamon Field, bewfoundland

~

Northern Arizona

1946
not stated

after dark Columbus , Ohio

.

l

,

Ground

~

I.

l4 mi1es north of Dauphin,
J.lanitoba, Canada

ticonderoga at sea (40 miles
south of Cape dlanco, 20 miles
o£f shore)

~

Ground

Boat

\

\

\

I

CONFIDENTIAL
NND 927545

Page 5

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DIOIDD'f

Is,

;w.

vu~FIDENTIAL
a...nect

lo.

r,ooat1cm

12111:.

SMaatfd

rra

1

Ground

1

Qro\md

1

Ground

,6

Jot Stated lot Stated !oilt, Idaho

,1

12 oot 47

,s

10 Jun 47

,9

9 Jlll 47

2,,0

Onnd Palla, levtoundland

5

OJ"ound

40

7 Jul 47

1600

Phoenix, Ar11ona

1

Oroun<S

•n

11 JUl 47

lot Stated lltndort J1eld, llatlta

1

Qro,md

42

12 lUl 47

04,0'L

BltndOl't J1eld, Alatll:a

1

Oroun4

43

29 Jun 47

1645

Clll"1on, Ion

18

Oro\lDd

"-5

28 Jun 47

1~,

Roekt1tld, W1■cou1n

7-10

Ground

7-10

Ql"0\1DC2

46

22 Jun 47

1

Ground

47

6 Jul 47 lot Stated 1a1rt1tld-6uilm Air S.le, 01111.

1

Oround

48

7 Jan 48 1920-1955 V1la1Jllton, Ohio

1

Ground

48a

7 Jan ,s

1925

1

Ground

481>

7 Jan 48

1910&ST V11111ngton, Ohio

1

Qrowu1

4&

7 Jan~

19,0

Y1la1Dgton, Ob1o

1

Orcnmd

-84

7 Jan 48 1920-1950 111.111ngton, Ohio

1

ll'ound

~

9 Jan 48

2,00-2,15

J>aJffi 11e , ltntllolq

1

Qroimd

50

10 Jan Ji8

2200

11lcSVood, In Jei-■r,

Oa•• Creek, Ar1■ ona

1200

lot Stated !udape1t, Bung&J"1

I

28 .Jun 47 Afternoon n11no11

.

11,0

Ortent1eld, 1111,

111111.ngton, Ob1o

_,,,.,.•

One at tb11 Orouad
date, PNT1wa17 1 ..oh

27 Deo,, JUI
all at 2000 o 1oloek.

51

'Sept lf

1215

on.ao, oneon

52

,,.

29 Jul 47

1450

53

28 Jan IJ7

1515

54

16 Jan IJ7

55

2:, Jul 47

12-15

Ground

1181111 ton 11eld, Cal1torn1a

2

Oroad

29 1111 •n Atter 1200 llllilton Jield, ca11tarn1a

2

Ground

Lake Jllead, ore1on

5~

Air

22:50

Jorth Sea (50 ail•• troa

1

Air

o,45Z

BIJ'llCffl Pield, ltvtoundland

l

Orolll\d

tbe Dutch coa,t)

Page 6

-

IAo1c1ent

-CQ~F~DENTIAL

-

us.

56

15a.
6 Jul 47

57

20 lul 47

0015Z

Abou-c! the BUl'aeo (at sea

58

4 Aug 47

BYeJWII

59

14 Se»t 47

60

?fe,

Looat1on

lo.

simaa

Ob1enec!

D:99

1-10

Gi-oan4

1

Boat

Bethel, Alaska

1

Ail"

055ae1T

Reeter Ialand

1

ill'

10 Jul 47

1000

Oor4707, Canac!a

1

OPOUDCS

61

8 Sept 47

22:,0

Salt Lllce Cl tJ, Unb

12

Ground

62

8 Sept 47 22:S0~:S00

Salt Like Cit7, Utah

5 Sl'0'QP8

Ground

2945

one hr. troa 874ne7, Autft11a)

eaoh oan-

ta1D1Dg
:S5~0
01:tJecta.

6:s

29 JuJ. 47

1205

can,on 1em, llontana

64

19 Aug 47

2130

Tv1n Jalll, Idaho

65

2 Jun 47

lot stated Rehoboth Beaoh, Delevan

66

10 Aug 47

2100

67

llJ. Aug 47

1600

68

24 Jun 47

l

Ol'om:ad

A.pprox.

Ol'oun4

55.
1

Ground

811Yer 8pr1.ngt, Ohio

l

Ol'ound

Placemlle, lalitornia

1

Ground

Hot 1tattd

Cuoa4e lountaiJ:aa,
Pwtlan4, 01-egon

6

Ground

69

6 Aug 47 22,0-2245

Ph1l.a4elph1a, Pa.

1

Ol'Ound

70

6 iug 47

Ph1lt4elph1a, Pa.

l

Ol'oand

71

8 Oot 47 lot 1tatecl

Laa Vega■, leYa4a

1

Ol'Ound

72

lot atate4 Jot 1tatec1

Port R1obardl0J1, Alllb

1

Ol"oand

7J

4 Aug 47

Boston (101111e1 n) •••·

2

A1r

74

24 .JW'l 47 App. 1500

•t. A~IU, ftlh!ngton

75

1, Aug 47

saote Rl•er aaix,on, Idabo

l

Ground

76

1:5 Aug 47 Jlornlng

Salaon Du, Ic!aho

2

Ornnd

77

:S 11117 47

1s,~

South BrookYille, Dine

10

Gl'O\IDl2

78

:,o Jun ~7

0910 JIST

Oran4 ClllQ'on, AP1aoaa

2

ill'

79

Apr 47

1100 ES!

R1oba0nd, V11"g1n.1a

1045

1600

1300

lot stated

Ground

1, other■ on Grcnmd

other ooou1ona

Page 7

coNriBcNTIAL
lno1dent

em..

19,

Looat1op

Jo.

SUhtn

rrw

1

Ground

80
81

7 Jul 47

82

0900

Biokaa Jield, lava11

1

171117 47 2030-2100

0klahOllll CitJ, OklahOJII

1

83

9 hl 47

Bo1 ■t (Between Boise and
hr1d1&n) Idaho

1

z, 84

7 Jul 47 l:500•140<Bft Lakeland, Jlorida

1217

85

1200

°'8tl"Ytd

Ground

5

Cll'ound

Portland, oregon

10

Qromd

86

6 lulJ ~7 lot ■tated

Hollywood, Cal1tonia

l

Qro,md

87

lot ,tated •ot 1tated

HabMrbi1hopehiOJ1 {20 mile,
zx, r tb ) Go rm.any

1

Ground

88

S J.ug if

Atternoon

Baokenaaok, a. J.

l

Ground

89

6 Jul 47

lS45

lanaae City (100 miles west),

l

Air

Ke.neaa
90

29 Jun 47

1500-15:SO

Lae Cruoe ■, !low Mexico

l

Groun4

91

28 Jun 41

2120-2146

Maxwell Pield, Alabama

1

Ground

• 92

lg Jun 47

l2l5-1Sl6

Colorado Springe, Colorado

l

Grcrund

ll Jan 48

l

1650

Harttord, Coumot1cut

l

Air

!O Deo 47

l926PSf

Between Great l'alle, Montana
and Pairfield, Ca!1tornia

l

SO Dec 47

l926PSf

Rosedale, Oalitornia

l

A.ir

SO Deo 47

1926

Lov•look (30 m1lea weat), leTae1&

l

Ground

97

30 Dec 47

1926PST Between Medtord and •t. Chaata,
Oregon

l

A1r

98

2

l(oT 47

Daybreak Houston, Texas

l

Ground

~

Jan 46

lot stated Vasea, 11nland

l

Ground

lot 1tated

l

Ground

95

100

5 Jan 46

Pretaraa&rl, F1nla1'ld

Page 8

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Incident
No .

Occupation

Jo1aneuvers

Heatner

1

1st Lt, UJAF

1lone - horizontal fl1gnt

IiOt

la

:,/::,gt,

1"ot stated

.,ot stated

lb

Uninown

t-:et stated

l1 ot stated

le

s/sgt, USAF

Not stated

~!ot stated

ld

Pfc, USAF

Flying in tight circle

!fot stat'3d

le

~fot stated

Horizontal anrl tipht circles

!lot stated

2

:Uaj, USAF

Descended from an intennediate
altitude in an oscillating
fashion almost to the ground,
then started climbing again to
a very high altitude and moved
off slowly in the distance.

Not stated

3

liajor, USAF

Oscillating in a downward twirl-

Not stated

4

Capt, USAF

5

Patr olman, ?ortland Dippi nP, up and down in oscillat-- Not stated
Police Dept.
ing motion

6

Sgt, Oregon Police

7

Patr olman, Por tland Not stated
Police Dept., former
Air Force pilot

Clear with little
or no cloud forma­
tion

Patrolman, Portland Str aight line formation; last
Police Dept. Pri­
disc fluttered very rapidly in
vate pilot
side-way arc

Clear with little
or no cloud for.na­
tion

Patrolman, Portland Strai~ht line fonnation ; last
Police Dept . ?ri­
disc fluttered very rapidly in
vate pilot
side-way- are

Clear with little
or no cloud forma­
tion

Capt., Harbot pilot

Not stated

9

Observer ' s

0::i,v'

stated

ing movement
Falling at three times the rate

?!ot stated

of a parachute

Following each otner

Discs wo'.lld oscillat e and SOl11131-'
times a full disc would be vis~
ibl e, then a half-moon shape,
t hen nothing at all

CUiqfiDE~~TIAL
NND 927545

Clear with little
or no cloud f orma­
tion

Page 9

Incident

•

•oo

ObaerTer' s
Ocoupad.on

10

Capt, United Airlines Straight-away horizontal flight

ll

Coast Guard

Horizontal flight

Kot stated

12

Deputy Sheriff

Mot stated

Not stated

lS

!lot stated

Not stated

Bot stated

14

Sot ste.ted

FUppi ng around

Mot stated

15

Jot stated

Not stated

Iot stated

16

Mot stated

Hot stated

Mot stated

17

Private pilot

Straight horizontal flight

Clear as crystal

18

llot stated

Horizontal fli ght

Clear

19

Farmer

Straight course - were flying
about a city block apart. one
behind the other

Cloudless and
sunny

20

lot stated

Straight course

lot stated

21

lot stated

Single file

Rot stated

22

Wot stated

Flashing

Bot stated

23

!lot stated

Horizontal flight

•ot stated

24

lot stated

Shooting up and down

Clear

25

Not stated

Hori&ontal flight

Bright moonlight

26

llecba.nic

lot atated

Not stated

27

TWA Representative

llot stated

Clear

28

Lt Governor

lot stated

Kot stated

29

ffest Coe.st Pi lot.
7000 hrs.

Bot stated

lot stated

30

Ca.pt. USAF. Asst
Operations Officer

Climbing and descending vertioally

Solid overcast

30a

VHF/DJ' Operator

Hovering, made three 360

Weather

Ka.neunra

0

turns around one place. Moved
to another position and circled

more. Turns required 30-40 seo.
Diaaeter estimated at 2 miles.

lot stated

Overcast. 1000 ft.

Page 10

- cor~FIDENTIAL
Incident
loo

Observer's
Occupation

SOb

Traffic Air Controller Bobbing up and down

Overcast

30o

lot a~ated

Climbing and de~oending

High overcast

Profe11or and Bead
or Aero Kn.gineering

Mone

Clear

Lt, USAP

Bone

Overcast

T/Sgt, USAF

Jone

1,it.,Lt, USAF

Bone

High acattered olouds
Visibility unlimited.
High scattered

PFC

lone

lfot stated

33c

Capt, USA1

Kay have been turning

High overcast
with BIS

33d

Capt, Us.Ar

None

32

33a

Maneuvers

Weather

High ecattered,
vi ei bi li ty unlimited

Col, Ky. State Police Kone

Clear

Capt, USAF (Plight

Not stated

.Not stated

:S3g

Unknown

Mot stated

Not stated

34

Judge

Bone

Clear

35

Second Officer.Wavy

Mone

!lot atated

36

CAA Official

Sot stated

Rot stated

37

Pilot

Kone

Clear ..,-.'!

38

Hungarian Peasants

Not stated

!lot stated

39

Constable

40

Not stated

3:Sf

Leader •a 869)

a.tVU.

Spiraled downward f'rom 5, 000
to 2,000 f't am then went

upward at a 450 angle

~

d

Cumulus clouds

Page 11

CONFIDENTIAL
Incident Observer's
No. Occupation Maneuvers Weather
41 Colonel, USAF Not stated Not stated
42 Major, USAF Not stated Not stated
43 Bus Driver Mone Not stated
44 Not stated None Not stated
45 Not stated Not stated Not stated
46 Not stated None Cloud banks.
47 Captain, USAF Rolled from side to side Not stated
48 Major, USAP Ascending and deseending Not stated
48a T/sgt Up and dowm and side to side Cold and elear with
few seattered elouds.
48b Cpl. Ascending and deseending Light seattered
clouds with haze
towards S/w.
480 s/sgt Aseending and descending very Clear with over-
rapidly east in S/w.
48d Not stated Ascending'and deseending Clear to seattered.
49 Not stated None Not stated
50 Knitting designer Approaching shore from Oeean then Not stated
rise and fall slowly.
51 Not stated Not stated Not stated
52 Capt, USAP, ASST. Horizonal left to right, right to Clear
Operations Offieer left like a guard in an airplane
and instructor Pilot formation.
528 lst Lt. in Air Similar to a fighter airerafts Not stated
Reserves former maneuvers when aseompanying
B-29 Pilot heavier ships.
53. lst Lt, USAf, Pilot Horizonal very elose formation Not stated
54 Mosquito Pilot Effieient eontrolled evasive action Not stated
55 Government Employee Abrupt darts High seattered
condition visibility
15 miles.
56 s/Sgt, USAP Traveling in a defimite are. Not stated
CONFIDENTIAL
NND 927545

Page 12

Incident

-

110.

Ol>aeryer's
Opomtion

57

Bridge Corustruct1on Bot stated

Clear and dark.

Chiet Pilot-

Not atated

lfot auted

58

IM!¥I8 £1

Yt•Hitr

Plying 1er-,1oe

59

Pilot

Hone

Rot stated

60

Storek:eepel"

lot Stated

Clear at duak

61

Kot stated

lfone

Wot stated

62

lot stated

Not stated

Cloudy

63

Hot stated

BOYel"ing and fluttering, 1'1S1ng
and deecendtng.

Scattered aull
olouda,

64

Executive Direct-

Hor11onal

OnNalt

65

P1lot

lfot stated

Not 1tated

66

Lt. Col, QSC
Sc1ent1t1c
Branch Research
Group.

Horizonal Pl1.g?\t

lfot 1tated

67

Insurance Adjuster None

Clear

68

Prospector

Banking

Cleu

69

Not stated

Hot stated

Not 1tated

70

Insurance Agent

Not stated

Clear

71

Capt. AC Reser-,es

Not stated

Clear

72

A1!S1 0tf1ce1'

Not stated

Cloud to1'118t1on
1oattered abOYe
10000 tt.

73

lavigator

Not stated

5/l.O acattered
cuaulus vith

or ot Housing
Authority.

(Conatellat1on
type ail"cNft)

tops at 10000,
Y111b111ty 10

a11H.

74

Prospector

Standi.nc on edge and banking
1n the clouda.

Mot 1tated

75

Trout Parm Oper.

Rode up and dovn oyer the hills
and hollow ot the canyon tloor.

Mot stated

76

County COlllliaaioner Hot stated

It

NND 927545

Rot stated

Page 13

In.ctdent

Ob ■erTer'•

Ko,

Qo9upgt109

Manemrp

J!eather

77

Astronomer

Not stated

lot stated

78

Lt, USI (P80 Pilot

lot 1t1ted

lot ■ tated

79

Weather r-,o7tff

Rot 1t1ted

Clear

80

Lt. Col. USAP

Jot ltated

Scattered clouds
Y111b111t7 10-12 ailea.

C1T11 Service

A1oendtng slowly

82

P1eld Bngtn,er

Bot stated

lot stated

83

Pilot

Slow roll or barrel

S<ae clouds

~

Sign Painter

Cl1Jlb1ng

Clear ...cattered cloud•

85

Pl'1Tate Pilot

lot stated

lot stated

86

Hot 1tated

'l'm"ned a corner and seemed
to roll.

Clear

87

U. S. Army

Descended slowly and then
dropped in a spiral motion,

~ot stated

88

Not stated

Not stated

Not s tated

89

Major, USAF

dot stated

90

Administrative Asst, Not at~ted
Rocket Sonde Section

91

Captain

Trave ling in zig-zag course

Clear

92

Railroad Employees

Climbing, diving and reversal
of direction whioh happened
enry few aeoonds.

Cle ar alld 1unny

Capt, USAP

Shooting toward, the eaat at
45° angle

Not stated

L~ Col, Hq, EPlf

Descending vertically - aeaned
to slow down on nearing the
earth

•ot 1tated

95

C-47 orew

Not sta.ted

Not stated

96

Bot stated

Bot stated

Not stated

97

Airplane crew

Not

stated

tiot &tnted

98

Immigration Service

99

Not stated
lfot stated

Appeared to be spinning in
its descent
Bot atated
?lot stated

81

bplo,ee

10 0

Clear

IL

NND 927545

lot stated
lot stated
Not ata.ted

Page 14

•

Incident

Sound

llo.

Color

Shape

Size

l

Silnr,-

Not stated

Not

lo

S11Tery

Saucer shaped

lot stated

■om

ld

Retleoted the •un' •
raya

Diac

llot stated

ltot atated

le

Silvery

Diec

•ot stated

None

2

Ahai.num colored
1urface

Thin metallic ob-

stated

Mot atated

la
lb

Puraui t eh1p

Mot stated

jeot, unconventi on al
ah11pe

s

Ye llowiab-llfhite

Spherical

4

lihi'te aluminum

Dietinct oftl out- 50 tt.
J.1m; ta> projectiona on upper sur-

5 - 10 t't, dtaaeter

lot 1tated

face which llight
han been thick

fine or nob1. Tne,e
croaaed each other
at intervals, 1ug­
ge1ting either ro­
tation or oaci lla•
tion ot alow type
5

lot 1tated

Round

.Not 1tated

.llom

6

1'h1 ti ah-brown

Diac

Jllot atated

Jllom

7

J.lumima

Di1e

Mot determined

lone

8

White

Dile

Out ol light be­

!tone

fore det&iled ob­
Hrfttion •d•

Sa

1'hite

Diec

Out of 11 ght be­
ror• detailed ob­
aen-at1on made

Mone

9

Like s hiny ohro­
aium hub cap

Di,o

Mot 1tated

!lot stated

10

.bot 1tated

Thin a.nd a.ooth

Not stated

Jot etated

on bottoa, rough
appea.rinc on top

NND 927545

Page 15

II~·

,DENTIAL

Inoident
llo.

Color

Shape

She

Sound

11

ffbi t e

Saucer

Jlot stated

~t stated

12

mot atated

Like tlock ot
geese

•ot stated

Low hmmdng
aound

13

Resembled •tallic

llot 1tated

lot 1tated

l ot atated

lt

Lin a new di••

Like a nn dime

Like .. run, di•

lot etated

15

Sil•er

lilot atated

lot atated

llot stated

16

Not stated

stated

lfot auted

17

ltirror bri t ht

Diameter equal to
di atan ce between
outboard enginea
of DC 4:

lot atated

llot s t ated

Not stated

Not

Approximately

circular. no tail

18

Jellow

19

Reflected the 1un
brilliantly

Like ci ga.ra 11uch longer than
wide

Jlot atated

Mom

20

Silnr

Round

About 12 inches in

Mone

diameter

21

Dirty 1'hite

Betwe.n circle
••rt•d aa.uc er

175-2 50 t't. dia:aeter Like electric
12 ft. t hiok
motor or dy­
nmo

Shiny d l nry

Slim body

Quite large

Bri ght and sil•ery

Ral t-circle

Not atated

Not stat ed

Gli&tened in av.n

Too far away to
dotenune ahe.pe

Too far away to

dete nain. ahape

lone

Plying saucer -

lot atated

lot atated

nnd on.l - in­
22

24
25
25

Luminous

DO

26
27

tai l

lot 1tated

lilot etated

Jiot sta'ted

lot atated

Silvery

Citoular in shape
like a wagon whee l

Same apan •• C-54
at 10. 000 rt.

Wot stated

'
28

Not etated

·eomet-11ke

Not stated

29

!lot stated

Almo1t round

lot stated

lot stated

50

White (.light)

dot stated

lot atated

!lone

NND 927545

Page 16

vbV~r IDENTIAL
lnoident
No.

Color

Sha.pc

Size

Sound

30&

Amber

Round or oval

C-47 airplane

Jliono

!Ob

Bright white to amber Cone-shaped. blunt Rnonnou•
on top and taper­
ing orr toward
bottom

30c

White lligbt)

'

RoWlld

Comparable 'to run-

Bone

way light

31

White

Not stated

lot stated

ltone

52

Amber

Mot stated

tiot stated

!lone

33

Sun flashes on metal Roughly circular
or metallic

At the distance and lone
altitude the object
appeared ~o be the
size of a11Ter dollar

ffll.1 te or luminous.
·rurnod to be more

Unknown - altitude
a.na distance too

Round teudi og to

be conical

great

red aa the aun aet

:53e

Iona

~ot auted

Cone. topped with Jot stated
red

Si lver with shadow

Raindrop

Unlcnown - believed

lone
lJnJcnoa

to be lar~
53d

1'h1. te

Round at time• -

Uneert&in because

cone ~haped

of distance

lone

53e

lfhi. te

Round

l/4: she full moon

33.f

l(atallio

Bot stated

Tremendous

SSg

"lfot stated

Cone

100 ft. high.
43 .rt. acrose

!lone

Redish tinge

Round

Large gre.pef'rui t

Ion•

35

Fire oolor

Ball

liot stated

llot atatecl

36

)lot stated

Bot stated

Mot at&.ted

Bot stated

S ft. from point of

lone

38

Reddish with blue
lot stated
background.. Black
with white baokground
SilTer
Ball

NND 927545

view
.Not ate.ted

Mot stated

Page 17

GONfHltJ'TiAL
Incident

lo,

001or

Shape

~

Soupd

39

Phosphoru1

Ba-shaped diaoa

lot 1tated

lot atate4

~o

Gray

El11pt1cal

20-,0 tt.

Ho11e like Jet
airoratt prior
to 1ts appell" ~

.. No

audible sound
beai-d 11h11e

object va1 1n
Yiev.
"1

Aluaim"-

Round

3 tt. diameter

lot atate4

~2

OH.yilh

Balloon

10 tt diaeter

lot 1tate4

1'-3

Dirty 1'lite

Between a o1.role IJ1d
an oval (ln-.erted

12 tt thiolc and
175-250 tt diameter

llectJ"ie Jlotor
ordynaao

sa~er)

44

lfot atat.d

Jlyina Saueers
(not actually desoribed as being
this shape)

Wot 1tated

none

lJ-5

Hot stated

Rot stated

Hot stated

Bot stated

46

Silvery vh1te Round

Small

lot stated

47

Bo detim.te shape
No detin1te
oolor top
ai(!e l"etleoted 11ght.

C -51'. airplane

lot deterained
due to the noise
ot airplane.

lf.8

Red

Wot stated

Rot stated

IJ.8a

Bright light

48b

Red - ldltn

PllUli.ng Red cone

Ve17 lai-ge cOlll)U'ed Hone
CirculU'-like a •tU'
1n tbe ak7 only luga. to an aeroplane 11,;bt.
ohangi.ne to
red then to
White OI" J"•llow
Hot detel'llintd

Jot 1tated

Red men IIO"fin8 lot atated
then grean and
black to red.

Kot 1tated

lot ■tated

48d

Yellow or tlame Rot 1tated
colored.

lot stated

lot 1tated

49

Not atated

!lot ■ tated

lot stated

Cone

descending

Pencil shaped ob3eot

t

Page 18

cot~FIDENTIAL
Incident
10.

color

Shape

50

Stated aa
queer 11.&ht.

Referred to aa aauoer
Kot stated
but not stated as being
ot thie detinite shape.

Jfot atated

51

11lver

Bomd

Not stated

•ot •tated

52

llhite. ah1Dy

Circular like a ball
en the bott011 but not
completely round.

15-25 tt Diameter

!lot atated

521

■ilk mite

Bot atated

•ot stated

lone

53

Whit.

C1roular

36 inches diameter

Rot stated

54

Rot atated

Not etated

Rot eta,ed

Not stated

55

RecUab

lot stated

Bot atated

None

56

Dia glow ot
light

Round

2 :tt. d1aaeter

Hone

lfot stated

Kot atated

Larger than C~4

Not stated

57
58

59

Blaok

Incandescent

sound

Si•e

Saucer (not det1n1tel7
1tated •• being tbia
shape)

airplane

Hot stated

Not atated

Hot stated

Diec shaped (the 11'ter
glow •de 1t look like

Barrel Bead, dinner

Wot stated

a oone)

ot a plane tl71,ng
hi&h.

11Cht without

appreciable
blue and no
redd1eh tinae.

60

Plame oolor

plate am the aise

61

White ancS
111Ullinated

Bot stated

Sue ot Pigeons

lfot 1tated

62

YelloV1ah
vhite

Bot stated

811811

Mot stated

Gleuaed and
Shialered

D1so (not actuall7
stated aa being ot
this shape)

, rt. a1aaeter and
ot no great th1ok•

lot stated

neaa.

64

Color 111111ar Kot stated
to eiectr1c 11.&ht.

lot stated

Hot stated

65

lot ltated

Bot stated

15 1nohea diaaeter

lot stated

66

Bright onnge

lot stated

lot atated

Hot stated

Jllutal col01"

top 1urtaoe al1ghtly

IJ.-6 tt 1n le~h
4
:~e :O-l 1nchea

ll'ot stated

67

h1ghl7 po111h- ournd-larger 1n front
ed chi-Ollium.
than 1n the rear .
NND 927545

liOMflDENTIAL

Page 19

flDENllAL e

•

Incident

Col OJ'

Shape

UU.

sounc1

I

68

Hot stated

D1eo - appeare~ to have
a tail.

30 tt d1aaeter

lone

69

White

lot 1tated

Not stated

Bussing sound.

70

Not stated

Giant til'e cracker

Kot stated

Bu11DI aound

not aa loud
aa a rocket
Ship.

71

Rot 1t1ted

Hot 1t1ted

lot atated

Not stated

72

Silver

Sphere( nt not like
1auoer or diac.

2·3 tt diameter

Rot 1tated

Deep Gold

1111pt1oal

15 tt long 2·3 tt

lot atated

1n length.

74

Bot stated

Tapered lbarpely to a
point in the tront end.

,o tt. diaaettr

Hone

75

Slq blue

Oblong like a broad rill
hat with a low crown.

20 tt. lona am
10 t,. thiolr.

Kade a

Jot 1tated

Hot stated

76

Not stated

av1shiq sound.

Lite the eoho

ot • aotor.
Only oonerete evidence

50•100 tt lfide.

Loud roar

Light gray

e1rou1ar

8 tt. diueter

Bot ■ tated

S1lftl'

Bot atated

Lu•er than a

Not atated

77

Light colored

78
79

or tora appeared on the
lett tangent ot the group.

Pibal balloon When
obaened through a

theodolite.
80

Retleoted vh1te
light.

"Blob 11

81

S11Yer

Large Balloon With silver Large
d11c below it, no attaebing
cables vere noticed.

'
82

Proa t7 ltbi te

Round and tlat

SMll ail"plane

Equal to b\11.k ot

6 eaob, B-29 air·

Hone

lot etated

A 1l1gbt
mahing.

planes td th dia ..

•t•r to tluomeas
ratio ot 10-1.

83

Black

Round

'tVtnt,-.f'ive cent
piece.

lot atated

Page 20

, .DENTIAL e
Incident

110,

color

Ship,

84

Sb1Jm7

Road

lot ltated

lore~ le11

85

Bot 1tated

Reseabled the D5U•l.

Jot 1tated

lot 1tated

86

Not 1tated

lot atate(!

IOt ltated

lot stated

87

Jot S1t&ted

Bot stated

lot ata.ted

lot atated

88

lot stated

1lying di ec (not ao­
tual ly deaoribed aa
being ot thi• aha.pe)

)lot 1t1.ted

lot atated

Ro\lDd di,o ahaped object

50-60 rt. diameter

bot at&ted

Unitonn with no protu­

Hot atatad

Bot 1tt.t1d

Refleote4
light

SbJ-111.

berano•• euoh •• wing•
of an airplane

92

Light

lot atated

Not stated

looe

Silver

lot ,tated

S-11

lloli ata.ted

Bluish center Appeared to be a di10
·. rl th rod on
its edgH

Reaembled ~ shooting Not etated
at~r; however. obaervera not oertain

94

!ot atatad

lot 1tated

Not stated

Not ,tated

95

Not stated

Not stated

Kot stated

Bot stated

96

Not st:i.ted

Hot etated

Not stated

Not atated

91

Flaah of

Kot atat••

Hot stated

Hot atated

light
98

Bright light

Ahaoat round or perhaps
oval or aauoer-ahaped

2ti-30 miles diametor

lot etated

99

Shining

Brightly ehining object

lot atated

Bot atated

lot atated

!lot stated

100

with long td 1

Wot ,tated

NND 927545

Page 21

Incident
No.

Exhaust

-

-COt~f\DENTlAL:-

e

Heading

Altitude Ft.

Speed

lffect on Cloud•

t:one

320°

1000-sooo rt.

~00 mph

lot at&ted

le

Not stated

liorthwest

7500-8000

ft.

~50-400 mph

Hot stated

ld

f.ot stated

northwest

7000-8000 f't.

300-400 mph

tlot atatod

le

tlot

stated

tiorthwest

6000 rt.

300-400 mph

~ot stated

2

tot stated

Not at&ted

From very near
the ground to
vory high

Not ste.tod

llot atated

3

Not ata.ted

frost to east

10000- 12000 rt.

200- 225 mph

)lo-r; stated

4

Not stated

North of due
east

Under 20000 ft .

Slower than Hot stated
lllAXimUDl speed
or P- 80

5

Bot stated

Two flying
aoutb - S
flying ea,t

Bo'\ stated.d

Great speed lot atated

6

Not stated

llorthweater ly Undetermined

7

None

Southweat

l

Trail

la.

lb

50000 fto

Terrifie

lot stat.d

Terrific faster than
any object
ever seen

lot stat.cl

by him
8

Rone-

South

40000 tt .

Terrific

lot atated

8a

Jlone

South

40000 rt.

?errifio

Not ,tated

9

Not atated

S01..-th

High over
Globe Mille

Terrific

lot stated

10

!Jone

Northwest

llot stated

Cruised for

Not atated

46 min. at
oonventional
airline apeed

(180 mph) then
rapidly disappeared

11

Not stated

OTer north end lot stated
ot Lake 1'o.shington

CG."f,DENTIAL
NND 927545

llot stated

.ttoi;

a ta. ted

Page 22

Bo.

E:xhauat
Trail

12

Wot atated

Incident

•
Bee.ding

.lltitude Ft.

Spoed

Effect on Cloud.a

Hot stated

Not atated

lot • ~ d

Hot at&t.<l

Tranlini BO

llot ,te.ted

3 west to
Did not appear
l north Tery high

lot atated

14

F1DENTIAl

lot atated

eaat.

taat they
•ere out ot
eight in eaat
in 2-4 aeoonda

lot atated

JloT1ng slowly

llot atat.d

onr aandy
dletr1ct
15

Iot 1te.ted

l beaded

High

Sot atated

lot atat.d

lot 1tatad

!tot atate4

llot atated

Not 1tated

lot 1tated

Not stated

Hot stated

Very taat

Bot stated

s outhea1t.
2 headed
north1a1t

16

Text continues in the original file (45 pages).

Same topic: title & summary match

• DOW-UAP-D100 — Air Materiel Command Report on Unidentified Flying Objects, 1947-1948
• DOW-UAP-D096 — Correspondence Relating to Project Blue Book, 1955

Same location: Various

• DOW-UAP-D105 — U.S. Air Force Flying Discs File, 1952
• DOW-UAP-D092 — Department of the Air Force Committee to Review Project Bluebook, 1966-1967
• DOW-UAP-D095 — Joint U.S.-Canadian Aviation Projects and UFO Sighting Reports, 1954-1955
• FBI-UAP-D014 — Correspondence Relating to UFO Sightings, 1967, 1974

Same period: 1948

• DOW-UAP-D017 — UAP Reported at Sandia Base, 1948-1950
• DOW-UAP-D093 — Analysis of Flying Object Incidents in the United States, 1948
• General 1948 Vol 1 (National Archives RG 18)
• Records Relating to the Collection and Dissemination of Intelligence 1948-1955-TS CONT No.2 2-5300-2-5399 (National Archives RG 341)

Same release: Release 04

• DOE-UAP-D004 — Los Alamos Conference on Aerial Phenomena, 1949
• DOW-UAP-D094 — Analysis of Flying Object Incidents in the United States, 1949
• NASA-UAP-D030 — STS-80 Unidentified Object Image 1, 1996
• NASA-UAP-D031 — STS-80 Unidentified Object Image 2, 1996
• NASA-UAP-D032 — STS-80 Unidentified Object Image 3, 1996
• DOW-UAP-PR104 — Unresolved UAP Report, Yellow Sea, 2025

Same agency: Department of War

• DOW-UAP-D003 — Mission Report, Arabian Gulf, 2020
• DOW-UAP-D004 — Mission Report, Arabian Gulf, 2020
• DOW-UAP-D005 — Mission Report, Arabian Gulf, 2020
• DOW-UAP-D006 — Mission Report, Arabian Gulf, 2020
• DOW-UAP-D007 — Mission Report, Arabian Gulf, 2020
• DOW-UAP-D008 — Mission Report, Djibouti, 2025