DECLASSIFIEDUSAF PROJECT BLUE BOOK · NARA T-1206
UNITED STATES AIR FORCE

PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969
CASE REFERENCE6782695
DATE OF SIGHTINGNovember 1957
REPORTED LOCATIONOsan Air Base Korea
FRAMES4

Machine transcription · mean legibility 69.3/100 · engines: tesseract-200dpi

Transcribed Frames

FRAME 001 / 004tesseract-200dpi
1. DATE

November 1957
3. DATE-TIME GROUP
QO830

11/23302

ae ee ee OTe

Local

GMT

——-

PROJECT 10073 RECORD CARD

2. LOCATION

Osan Air Base, Korea

-
my

. CONCLUSIONS

Was Bailoon
Probably Balloon

4. TYPE OF OBSERVATION
“& Ground- Visual

0 Air Visual O Air-Intercept

O Ground-Rador

Possibly Balloon

Wos Aircraft
Probubly Aircratt
Possibly Aircrolt

Rador

5. PHOTOS
O Yes

wee. a ec

6. SOURCE

ry Pt?

7. LENGTH OF OBSERVATION

10 to 30 seconds

} Was Astronomical \icteor’
Probably Astronomical
Possibly Astronomicol

vy

—-—-=-+----—

ooo coos oes 955

10. BRIEF SUMMARY OF SIGHTING
A long,

peared in clouds,

ATIC FORM 329 (REV 26 5P 52)

i . |
aaa air ei i thee ct nec mek

from reddish-~-yellow to whitish-
going east in level flight aud

8. NUMBER OF OBJECTS | 9. COURSE Other can
Insufficient Dota for Evaluation
Unknown
aos) ORS i ml Enst oo ie eiian,
11. COMMENTS
narrow flame was seen, color The sketch is typical of a meteor,

yellow,

disap- |with this

Duration & description conforms

analysis.
FRAME 002 / 004tesseract-200dpi
— Nn on. xabidiie ois umeh anton gene +

, % } : } ie) i |

{ ’ -_ i we . gy
; ® 5 y) - cK 7s — f : a.
A7.FORM Tie —— s AMELMSYSLLLL 1. Ce.
\ Wie | ) fh

A"/ ROVED | JUNE 1948

.
—s

COUNTRY REPORT NO. (LEAVE BLANK)
South Korea TR=lj=57  2.0na0 se
AIR INTELLIGENCE INFORMATION REPORT

SUBJECT es a i

__ Unidentified Flying Object Report (UFOB)
AREA REPORTED ON FROM (Agency) ie .

; Osan Air Base, Korea ee Intelligence, 3luth Air Division |
OATEOF REPORT DATE OF INFORMATION —__ Nov U1 57 EVALUATION ie

21 November 1957 XE ISZ 23302 C~2

‘ - weet ares ‘a —
PREPAREO Dy (Officer) | SOURCE |

David Re Perdue, 2/Lt

oe eee SS eee

REFERENCES (Control number, directive, previous report, etc., as applicable)

31; IR=3-57, 29 October 1957,

‘SUMMARY: (Enter concise summary of report. Give ive significance in final one-sentence paragraph. List inclosures at lower left. Byin tert of report on AF Form 112—Part IL)

Cn night of November 11, 1957 a/3¢ aimee: 3/30 TMs sported an
unidentified flying object near Csan Air "ase.

. —— oe ———

——— —) eee eee

None _ wes

Lt Col, “USAF

—_——— ~~ _ ——_——— re = — —E

DISTRIBUTION BY ORIGINATOR 7 = a oe
crvcpac, APO 953
CCMDR, 5th AF, APO 925
COMR, 6146th AFAG, APO 76

NOTE THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, 50 U.S.C.—
31 AND 32, AS AMENDED. ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW,
iT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF

INTELLIGENCE, USAF,
We Lb sa LED)

SSCA 16-~ S53¢0-3 U. 5. GOVEAauENt PeiwTine oreice
FRAME 003 / 004tesseract-200dpi
AF FORM 112—PART Il

APPROVED | JUNE 1948

(c i fee

AIR INTELLIGENCE INFORMATION REPORT |
FROM (4yency) REPORT NO. |
Intelligence, 3Ukth Air Division | — AR--57 PAGE 2 oF J PAGES |

— sen + <a

-———- = me. a ee ee =o —_ —_— -

—— eS See ee ’ —

le No — object seen, only exhaust flame, flame will herein be called object.

sal ‘ang narroy |
be Observer states flame and sparks looked ~ as long as a pencil held at arms ~ |

—*----- oo

length. Estimates flame and sparks _ "1000 feet » in lengthe Compared with

_——-—_

markers on rynway to which object flew parallel.

Cc. Two accounts give variation from reddish yellow to whitish yellow.
de n/a
Se n/a

f. At end of flame sparks were observed
Se

he ee - -

ge SS x Re eadend from, aS servers rawing \per

he no Sound was heard by either observer
les n/a

2s a. Ons of the two men happened to glance at the sky and viewed the object. Hea
- then called the attention of the other man to it.

bs object was viewed in straight level flight. It passed from west to east on

—_ cee

heading of approximately — 050 “dagreese ale aesntcsceaiet

Co disappeared on heading of 090 degrees
d, straight and level flight with no alteration of course. Observers estimate _
speed at 800 or 900 knots at 2000feet altitude — |
f\
Se object disappeared inte clouds. Observers felt they would have been able to

oo -

observe object further had it not been for clowcover.

oat
f. One man viewed object for 20 t to, 30 seconds. The other man viewed the object
for 10 )_senonds ae
7 y ys 4
30 @a Ground visual 2h 7 ; ,
Do n/a - peo tome
ce n/a : ae 1 eet
pat
i» ae 23302, 11 November 1957 2 PROLLY ~ Dae a
be night a ae gous

A en wags
Se te Both men were(standing bes ida) Gad t—west runway at CSAN AIR BASE, KOREA

be ae n/a

be M2L6 AAC Sqe, GOA operator. His estimates
Seem to be based on a fair knowledgsfof aircraft, altitudes, speeds etc,
probably due to his technic training 22 ctvtc2tn 7} Fo. ig a
* , ehine fs FS a, we ay rate | ff f
ae < -, i * i e (LL rad w~ 6 f* ‘eee o ‘ wh rtm. tte
i“, ALLE ZLEidiae feted, etme, yf petophoetin Atte AA PARAS:
NOTE: THIS DOCUMENT CONTAINS INFOP MATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE CT, 00. S.C:
J! AND 22. AS AMENDED § ITS TRANSMISSION OR THE REVELATION OF 115 CONTENTS IN ANY MANNER TO AN UNAUTHOPR 70D PERSON IS PROHIGITED BY ‘4 AW
IT MAY NOT SE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCOPT BY PeRMISSION GF THE DIRECTOR OF

INTELLIGENCE, USAF.

fo StS J
Cyt (Tog Shi a Sy a Az — KS
ih LAS viF iGATION) ~ 1% L570 4 as wn Le ie es io a ' fast 7113° 39
FRAME 004 / 004tesseract-200dpi
SS PS EL « ; - i
(fe =,
AF FORM 112—PART I LM ABELL)

APPROVED 1 JUNE 1948

FROM (Agency)

Intelligence, 314th Air Division

——2. oe

be

Te

Fe
10.

lle

12.

Nore: THI

AIR INTELLIGENCE INFORMATION REPORT

REPORT NO.

Thebes7_

ne ——— eee ee —- —_

PAGE 3 OF 3

—-——- . - -_——

PAGES

— ee

———

>, eS control tower operator.
Hivaluation of this observer is same as above

&e 7 mile visibility with a few low clouds. No unusual weather activity was
given by observers
LRP
be Repofrt from Osan AB weather officer

1. surface winds SSW at 6 knots

2. 000 ft. 260°/25 knots
35 10000 ft. 2709/35 knots |
lie 20000 fte 270°/H& knots |
Se 30000 fte 250°/90 knots

Co n/a
de 7 miles and clear

€e ceilingometer at 2)00Z reported small scattered clouds at 3500 feat

Olive (tower operator) reported a T=33 in area previously but is certain this is
not what he Sawe

puipwememps, cniet Radar Intelligence, 31th Air Division.

I feel certain these men saw an unusual object not of a conventional nature,
Theres may be possibility of a tie-in with an object sighted in Japan five days
later, which was reported in the Pacific Stars and Stripes newspaper, These men
were not available until a week after their sightings. But upon questioning I
ascertained that neither had read the newspaper article which might have colored

their stopy somewhat. I have no subststantial idea of the possible cause of ths
Sighting.

a ee oe ae

Du DR Paroles
DAVID-R. PERDUE

2/Lte, USAF

Chief Radar Intelligence

} DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT, 50U §.C--

2) AND 22. AS AMENDED, 11S TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW,
IT MAY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AlR FORCE AGENCIES, EXCEPT BY PERMISSION OF THE DIRECTOR OF
INTELLIGENCE, USAF.

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* (CLASSIFICATION) 1G 65570-1 vr U © COVE REMENT PHINTING OFFICE . 1951 G-—-otal