PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969

CASE REFERENCE6313331

DATE OF SIGHTINGApril 1952

REPORTED LOCATIONMc Clellan AFB Calif

FRAMES4

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Machine transcription · mean legibility 87.7/100 · engines: paddle-gpu-200dpi

Transcribed Frames

FRAME 001 / 004paddle-gpu-200dpi

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PROJECT 10073 RECORD CARD . 1.
1 1. DATE 2. LOCATION 12. CONCLUSIONS
20 Apr 52 Was Balloon
000 Probably Balloon
3. DATE-TIME GROUR I 4. TYPE OF OBSERVATION Possibly Balloon
Local. 2133 PST Ground.Visua! Ground-Radur 0 Was Aircroft
0 Probably Aircraft
GMT. 21 0533 D Air- Visual 0 Air-Intercept Rodar D Possibly Aircraft
5. PHOTOS 6. SOURCE 0 Was Astronamical
CYes 00 Probubly Astronomical
No corunercial pilot Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS COURSE Other
Insufficient Data for Evoluation
3-5 seconds 7 to 10 Unknown
0 BRIEF SUMMARY OF SIGHTING .11. COMMENTS
Luminous color.
aircraft.
1

FRAME 002 / 004paddle-gpu-200dpi

PERENCEs (C.bnern numder, directire, prestone report, ete., as 4ppl.eahle)
MMARY. (Enser comeise summary of report.  Gige signifeaince in Sinal-one-senience paragraph. Line inclomrea  bower left. Begin fest of regrt on AP Porm 1-art I.)
Source, a commerdial pilot, reports the following infomation perteining to
unddentiriod objects whieh he-observed fron' a ground position on 20 April l95?.
M. Fidelli stated that the objeets appeared to follow an alrcraft that larded on
che-N/B runway at MoClellan AFB, California:
2
ar Time 2133 PST
bus Date - D April 1952
0.% Number - 3oven to ton
d. Altitude varying l,OCo feet and less
.Heading northeast
f... Sceed unkown
3or Location
Siza - unknown
1.7 Description - appeared as lmninoua objeetav
Ja Echaust trail - nene
k.. Sound nono
l. Duratioa of sighting to Tive seconds
APPROVED:
CHAILES J. PCWLEY WILLIAM-L. TRAVIS.
Captain. 03A7 Colonal.-USAr
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INCLS. :
TA DOWNGRADED AT 3 YMAR INTEEVALS:
3 .. DECIASSIFTED AFTER 12 YEARS..
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1 DOD DIR 5200.10
5 2
la 72 i1 I8
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TRIBUTICN BY ORIGINATCR
THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT. SO U. S C. --
31 ANO 3. AS AMENDED.
TT MAY NOT BE REPPODUCED IN WHOLE OR IN PART, BY OTHER THAN UNITED STATES AIR FORCE AGENCIES, EXCEPT BY PERNSIGION OF THE DIRECTOR OF
INTELLIGENCE, USAF.
16-2019-1 1833
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FRAME 003 / 004paddle-gpu-200dpi

HEADING: NNE .
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SOURCE: Commorcial Pilot
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aircraft that
landed at MoClellan. am
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FRAME 004 / 004paddle-gpu-200dpi

today, many series. of four glowing
spheres crossing the sky along the Muroia-Valencia trajec at high speed and
at a great height. The spheres looked like locks of wool of a vivid reddish
. color which changed They
gradually disappeared in the distance. No unusual sound was heard. The spec-
. tacle Lasted hardly a minute.
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