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

PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969
CASE REFERENCE9618573
DATE OF SIGHTINGNovember 1950
REPORTED LOCATION[ILLEGIBLE]
FRAMES32

Machine transcription · mean legibility 53.7/100 · engines: tesseract-200dpi

Transcribed Frames

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4. NUMBER OF OSJECTS 7

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|é. TYPE OF OBSERVATION
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OKINAWA SHIMA

‘AGO WAN

y by the U. 8.8. Pathfinder in 1945
1, 26°94/47" N.— Long. 127°59/10" B.

JAPAN
Natural Seale 1: 35,000 NANSEIL SHIOTO OR. SOUTHWESTERN ISLAy

wan 2°49’ w (i940)
REAMLY STATIONARY

OKINAWA GUN

From Japanese surveys to 1025
with additions from U.S. Navy surveys in 1945

SOUNDINGS IN FATHOMS
reduced toapprom mately Lowest Low Water
HEIGHTS IN FEET AGOVE MEAN SEA LEVEL

For Symbols and Abbreviations, see H. O. Chart No. 1

MERCATOR PROJECTION
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TAkY OF THE NAVY
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1 POL YCONIC GHIO BANOO Hin TONE C™
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UNTEN NE, RYUKYU-RETTO

OKINAWA-KEN
N2645-E12807.5/5x7-5
FRAME 011 / 032tesseract-200dpi
SHEET 3727-Il1 NE

AMS 2
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FIRST EDITION-
POA 1 (REVISION OF FIRST EDITION AMS
FRAME 012 / 032tesseract-200dpi
SECURITY CLASSIFI wm Ue

DISPOSITION FORM

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: ec
Water Off Okinawa, Nov 50

TO Chief, Air Technical FROM Dept of the Air Force OME Qf | 5) COMMENT WO. 1
Intelligence Center Hq USAF ~ AFOIN-242 Maj Fournet/dbv/759%

Wright-Patterson AFB
Ohio -

1. Reference our DF dated 28 August 1952, same subject as above.

2. Large scale maps of the area in question were obtained and the correct spot
located. It will be noted on Incl 1 that the water off the village of Ginama is
rather deep. According to & sketch, the object would have fallen in at
least 10 fathome of water. A search for the object would entail diving operations at
this depth over an area of approximately one-half square mile or more. For this
reason it is considered impractical to request an attempt at recovery.

3. It ie suggested that all documents pertaining to thie care be filed in the
event that the future status of Project Blue Book warrants a recovery attempt.

4. All documents referring to this case are returned herewith,

6 Incle p> wit RG -

Colonel, USAF

1. Map 3727-1 SW, 1:25,000 Chief, Topical Division

2. Kap 3727-111 NE, 1:25,000 Deputy Director for Estimtes

3. Transcript terview w/sctiia Directorate of Intelligence, DCS/0
4, Memo of Sgt comments

5. Hydro Chart nawa —o ~

6, Aero Chart Okinawa men Seveinn = ~sinhnae Pr ‘

érfore, ue |
ye oka e Atel ion

pow NGRADED AT 3 YEAR INTER‘ *
DECLASSIFIED AFTER 12 YEARS.
DOD DIk 6200.10

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First Edition (AMS 1), 1944. Scale 1: ;
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Prepared under the direction of the Chief —_ ——_
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U.S. Army, Washington, 0.C., 1944. 1000 500 °o
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FRAME 017 / 032tesseract-200dpi
IRLD POLYCONIC GRID. BAND ttn. ZONE™C™
UTS OF THE GRID NUMBERS ane OMITTED

CONIC PROJECTION

SUL SHOE SERTOR CORRECTIONS 450 ADH TONS SHIcH Come
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3HTS IN METERS

12°30"

1132 1133

42 ons

APPROTIasTE Stas ECL eaTIOS 1966
FOR CanTES OF Sacet
BO USUAL S4ERETIC CHance

Use di only te obtei ase oat
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with the velue ef the engle between GRID
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the degree scale ef the worth edge of the mep.

a0°as’

UNTEN NE, RYUKYU-RETTO

OKINAWA-KEN, KUNIGAMI-GUN
N2645-E12807.5/5x7.5

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FRAME 019 / 032POOR LEGIBILITY — PENDING RE-EXAMINATION
ee? oe = eae  eE

RYUKYU-RETTO 1:25,000 BOG Wor onder Depern Agenciesony (oIN,
12815 "36 "37 "38 "39 — 17-30" ia 1142
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convension = A. M.S. L891}
MOT are aceis FEST Egition (AMS 1), 1944.

‘ of ihe
ns | _———— — —_—  ——  —
; 10,000 Prepared under the direction of the Cruel of Engineers 1000 500 o
) 1.000 by the Army Map Service (GEAM). U.S. Army. Washington. D.C = —— os — oo o_o
Compiled in 1944 trom aenal photography. dated Sept 1944 1000 500 ]
9.000 by stereophotogrammetnc methods. by relerence to Japan SS
1, 200,000, Japanese impensl Land Survey. Yoron »ma, 1931.
2.00 ase Hydrography compuded by Mydrograptuc Office, U S. Navy. 1964.
All place names ere Wanscribed according to the — CONTOUR
, Modihed Hepburn (Remap) System. [10 GIVE GMD AND TARGET AREA REFERENCES OF THiS SHEET
= NURS ICAO me LULLED Koen preted wound Re marge & Be cap rm
} 2.000 Toes ae tee (nding Oe tel coertraien
6.000 GE ONY Tel LARGE MiGUAES FRRTED me Ing MARR OF OF Tet One TrOUSAHD TARO we
Yad hase Panes oe
OTE arecees cate 8 Ore
1.500 3.000 Fe mare OFER ET ome Car
LEGEND
4,000 ~~
een
1000 Pratectura) Road es |= Rasivend 36‘ govge soem ——s> wre
3009 fue. 2.4 meters wide » ———as Saeed PE" geuge cating ———= ae ‘
Teach and Trad eee «= Aalieed PE" eevee geege — — |
2,000 =u -
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EE F| Tone SL ORES of eee L2G yard onare @ whch Oy peed ee
song Med or teat em Saneep » Tone LETEER @ Me 2D ye teen atch De pet bee wrosoaaa
Rice held a —— Tt LEVEL
. . Onchesd a we ee Luminng danger kno oon a HEIGHTS IN ME :
FRAME 021 / 032POOR LEGIBILITY — PENDING RE-EXAMINATION
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144 20° 1145 ~~ "46 3 . “ay CL - as a3 ng... weer
“ 1 Mile i cael neal 139561
1000 2000 Yards -
— —

INTERVAL 10 METERS
DNIC PROJECTION

«© POLYCONIC GRID BAND itm ZONE “C™
BOF Ihe GMO HUM REMS 484 OMITTED

(BeBe HERE OT CORRECHON) 299 4800S EEE COME
tro THE CHIE? OF CaarNEERS, DASHNETON BC

GLOSSARY |
county
prefecture
do) harbor
why, zak) cape
townsnip
@, -mrsaki) cape
ona) sland

WiC DATUM: APPROXIMATE
f LOWEST LOW WATER

ERS-DEPTHS IN FATHOMS

APPROT Walt EF4% OFC BAT-OB 1886
#08 CENTER OF Butet
BO ABNYUS, HAEMETC CreweE

Use diagram oaty te ebteis avaoreel volews
Te determise magrem seth hae consort the
pirat point “F” on the weuth edge of be aap
wih the volve of the angio bereeea CHD
MORIN ene MAGNETIC NORTH, a2 plotted on
the degree wceie of the north edge of the oop.

roo
sare

mo

Om Out
———_—_—
————_

Cowal Om ma teds

reclo
Paves re w

-——

A ye cg 2ah< Comet stem Betebedy tas!
1 Sorte 1470/08! Seer O88
2 Seree 11 PL rtee) Sege 1908

SAN tease Smee i> COVERAGE

GINAMA SW, RYUKYU-RETTO

OKINAWA-KEN
~ N2650-E12815/5x7.5
FRAME 022 / 032POOR LEGIBILITY — PENDING RE-EXAMINATION
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}-:

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FRAME 023 / 032POOR LEGIBILITY — PENDING RE-EXAMINATION
d3!4ISSVIONN

t44¥I8 2) Z3IND THLE 40 GIVIODS 2a
*hydei WIA E poe T sernscpouy Jo umyex 48
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FRAME 024 / 032tesseract-200dpi
141

ond
sc gettiy Sarenae nee
140 i790

r
i. 4

For use by W
1139

1137
‘oe 2 a™

RYUKYU-RETTO PHOTO MAPS 1:25,000

1135

yf
FRAME 025 / 032POOR LEGIBILITY — PENDING RE-EXAMINATION
128°15" 1136 000yes.5 | 1137

A.M.S. LO91
First Edition (AMS 1), 1944.

Prepared under the direction of the Chief

of Engineers by the Army Map Service (AM),
U.S. Army, Washington, 0.C. 1944,

Mosaic controlled by average

fit to 1:25,000 map. Aerial
photographs flown by U.S.AAF.

Sorties: September 1944, 14 PL/MR7 12” RV, LV.

Reliability of grid uncertain due
to local minor disagreement
between photo map and topographic map.

1138

BS Pe SS

1139 1140

7 TO GivE TARGET AMTA REFERENCES OF Ths SHEET

HGUETS | MOR rae LAL (8 ques weted ereund fe Serge of Re aup
Veemaere te unteng "he tel (@ erensten

USE Om Tet (ARGEe PGURLS PRINTED mm Tek Amgen OF Tet er
Ww geo

foml_ Heda _
tot |
Tene West edge of severe

ee ee ae
Reet preted compete Hn bee
on Ret & bev? Seg |

et
tome Seet® edge of tere
ee ke ee ee
Ngert & ed soeoels ies ame
oe lento Bet meee

i733”

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_—_—— — ,
Ong THOUSAND Y
vee Laer?
FRAME 026 / 032tesseract-200dpi
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! 143 1144 |

Je 1:25,000 (Approximate)

| 18) 1 Mile
= oe —
0 1000 2000 Meters
a

0 1000 2000 Yards
= a

&4RD WORLD POLYCONIC GRID. BAND It in, ZONE “C™
SREE OIGITS OF THE GUID NUMBERS ane OMITTED

POLYCONIC PROJECTION

Tete GAP OH. B2OE HORTON CORRECTIONS 408 s0eIHORS Wate Cont
@ Gan SreccT to THE CHIEF OF ENGINEERS. WasmiNGTON. © C.

HEIGHTS IN METERS

-_ 2° =—-e- —~—e —-+-e

-°--——_e

APPROT GATE BEAe OECLISaTOw 1 BEE
foe Ctattes oF suaet
BO AMMUAL BACRENC Cmanct

Use diegrem enly te ebtein numerical volves
Te determine magnetic north line, connect the
pivot point “PF” on the south edge of the mop
with the velve of the eagle between GRID
NORTH end MAGNETIC NORTH, os plotted on
the degree sole ef the merth edge of the mep.

—_+ —- §—-—-+—— «

~-——_~+> —

148 Oy

AGET BAP BEOTICE | S AUT WasmiNGTOS. © C. 138632
ues 196

INDEX TO ADJOINING SHEETS
+20%07'30" 17030"

as®es

GINAMA SW, RYUKYU-RETTO

OKINAWA-KEN, KUNIGAMI-GUN
N265-E12815/5x7.5
FRAME 027 / 032tesseract-200dpi
“a UNCLASSit tigey Pourmet/dab/M10L6
aft Mrta 25 Aug 52

1. To prepare DF to ATIC.
E.STS_ Ap DISCUCSTONs
2. T/Sgt oe, assigned to WADC at WP APB, recently appeared
e BL

in person befor ue Book personnel at ATIC cnd vwolunterred in-

formation concerning the sighting of an u/i flyob on Okinawa in Now 50.
He stated that the object h:d fallen into the sea.

3. Sgta@@ pointed out the approxiante location on & map and drew
a large scale sketch of the area.

he This information was forwarded to AFOIN~2A2 for the parpose of
determining the feasibility of an attenpt to recover or othernise locate
and examine the object.

5. A hydrorraphic chart of the area was obtained to determine the
soundings and thereby judce the feasibility an investigation. However,

it wae found that the data reported by Sgt did not tally wth the
hydregraphic chart. ATIC is therefore be uosted to reinterrogate
Sgt GMM in order to resolve these differences. The attached DF will
accomplish this.

6. Subject matter will not be suitable for inclusion in the Deily
Staff Digest.

7. Approval, aignatare and dispatch of attached DF,
CCORDINATIONs
Col Wolfe, 75990

AFOIN-24, Col Adams, 7156),
AFOIN-2, Col Morrow, 71110

WO re ee ee ees

ee ee
FRAME 028 / 032tesseract-200dpi
Memorandum for Record
Subjects Report of Unexplained Incident on Okinowa ,.
i?

CAPE. 1% vas two days before Thanksgiving 1950 sonctine after 1900
local Time, You were playing pinochle, Is that correct?

SOURCE: We were playing pincchle,

GAPT RUPPELT: And the first thing you heard was this noise,

SOURCE: Sounied like a motor and the motor died,

CAPT RUPPELT: Did it sound like a conventional aircraft?

SOURCE: Wo, sir..

CAPT RUPPILT: It did not sound like a conventional aircraft,

SOURCE: I've heard too many of them, I've got 12 years of service and most
of it has been around aircraft where you distinguish the difference between
Single engine and milti engine aircraft,

CAPT RUPPELTs Have you ever heard of any of these ramjets, not ranjets but

pulse jet engines over here at Area B? It is sort of a stacoto sound,
SOURCE: Yes,

CAPT RUPPELT: Did it sound like that at all?

SOURCE: Wo,

CAPT RUPPELT: It didn't, But it was definitely different from an aircraft engine.
SOURCE: It was mostly different from other aircraft,

CAPT RUPPELT: You know a Jap Betty" sounded like that but they wouldn't have
any Betty's at that date, I'm mixed up on my dates here, And you vere playing
pinochle up here in this out post (see sketch).

SOURCE: From here to here for about four or five miles,

CAPT RUPPELT: Some of your people were coming’ back from town.
FRAME 029 / 032tesseract-200dpi
SOURCE: Coming back from Quiena,

CAPT RUPPELT: And there on one side of the lagoon and there was a native coming
out of the tunnel on the other side, So actually there is a light of sight
across the lagoon. And it fell somewhere near the mouth of the lagoon. Did

the people in the village see it?

SOURCE: Yes.

CAPT RUPPELT: And it looked just like a great big white landing light and it

met with the others from the description in the big white landing light. It was
coming in, Do you have any idea which way it was coming in?

SOURCE: It came in from this direction (NE).

‘CAPT RUPPELT: And then you say that later on sometime after the 26th of December
you were up at this northern outpost and you got to talk to them and they said
that they saw a light about that time,

SOURCE: Right about that time,

CAPT RUPPELT: Well, ——, if it had been an airplane, one of ours, they should
have gone out and looked for it.

SOURCE; Right after that I waited about a half hour then I called island control.
If it were one of our aircraft he would have commmnication and he would check
with them and there would be a mayday sent out. I checked to see if we had an
aircraft down. Now whether or not they have that information on file I do not
know, The Radio log is no loner on file because regulations require that they
be discarded every six months.

CAPT RUPPELT: Maybe not, a heck of a lot of that stuff was destroyed. Well, that's
very interesting. How do you spell your name?

SOURCE: a T/Sgt.

CAPT RUPPELT: And you're over at WADC and what's your symbol over there?
FRAME 030 / 032tesseract-200dpi
ee eee

CAPT RUPPELT: That's over in the Electronics Sub-Division,

SOURCE: >. —
GAPT RUPPELT: Did @ quot clatent I mean the native and the

G.1.'s. % you know?

SOURCE: Well, now, the G.I, didn't see the splash. They did see the light,
They thought it was just another aircraft. lots of times aircraft vould come
over and turn on their lights to say “hello", We'd blink ours back to then,
CAPT RUPPELT: And they came up where you were playing pinochle and told you
about it, It took them about three minutes to get up there?

SOURCE: A little longer than that, About five or ten minutes,

CAPT RUPPELT: 0,K,, then that's about it,

’
\|
'
FRAME 031 / 032tesseract-200dpi
Se oe IEE Horr eFC OI OT I eaiiaialiies ~aes
-
‘

AepPoavesra the cove he refers to is on the extrone northern

tip of Okinowa. No photomosaice hero, “Wiipjsslains he is very faniliar
y with Okinowa and cove he refers to is not on chart,

He says he is sure that cove was two to three miles wide. Depth was
four fathoms, Either @§#M is confused on the location or the cove is
much smaller than he judged.

He offered to go back and point out spot, Saye map must be wrong
about mo houses in area he mentions, I doubt it, however,

* At
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