PROJECT BLUE BOOK

T
PROJECT 10073 RECORD CARD
1. DATE 2.LOCATION 12. CONCLUSIONS
Was Balloon
21 November 1957 Houm, Alabama 000 Probably Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION E OF OBSERVATION Possibly Balloon
3. DATE-TIME GROUP
Local_ Local Ground-Visual Ground-Visual X Ground-Roder 0 Was Aireraft
000 00 Probably Aireraft
GMT-21/0600Z GMT_ 21/0600Z Air Visual Air-Intercept Radar Possibly Aircraft Possibly Aireraft
5. 5. PHOTOS . SOURCE 0 Was Astronomical
x Yes X Yes Military 00 Probably Astronomical
No II PossiblyAstronomical
7. LENGTH OF OBSERVATION 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS 9. 9. COURSE OK Otherfalse returns Otherfalse returns
D Insufficient Data for Evaluation Insufficient Data for Evaluation
0 Unknown
not given not given one down
10. BRIEF SUMMARY OF SIGHTING PINe 11. COMMENTS
Radar picked up'target 15 miles Lacking any visual observation
long and l0 miles wide. Civil air- of so huge an object, it must
planes were unable to pick up target. be considered a false return.
ATIC FORM 329 (REV 26 SEP 52)

neMmemdcdMe
PARAPHRASE NOT RTOUTY
CATEGORY R ENCR x7e
ALL INTERNAL REFEIINCIN UNCL
PRIOR TO DECLA ASSIFIED
REFERENCE
NBR 20694- 24 NOV
AC PRICRITY
FM COMDR 657 ACWRON HOUM ALA 2303352 MSG
TO CCMDR ATIC
4E4
OPS OOIL. FOR CIC STEWART AFE NEWBURGH
21 NCVEMBER 57 0600Z TO OR D0O1T
TIME. WILLIAM H STUCD SECOND LT ORCE
10.32555 - IDtDt
AIRMAN FIRS 27350
ALL OBSERVEI RGEA YEARS,
SERGEANTS STEWARTS XPERIEN FARS
EXPERIENCE FARS. 11 FROM THIS STATICN WISUALLY OBSERVED
THE TARGET OBSERVATICNS WERE NYONE.
EVERY 15
THE FIS WILL BE FORWARDED AT A
LATER DATE TH : TRACK NUMBER THE TARGET HAD A SPEED.
Classification Cancelled
DOWNGE EHVALSI (crc pWh)
DECLIPT THAls. Auth
12010 UNCLACSIFIED By DTDET UEO
DateS64
AFR205-1ra112
An S6s 1Firar
.
-

NO ACFT IVT AERCNAUTICS
ADMINISTRATIC NOTIFIED SITUATION ADN 2 COMPERCIAL -
AIRLINER LLES NORTH OF THE TRACK SEARCHED OVER IT
ON TH RADAR WITH NEGATIVE RESULTS.
THAT WHEN THE TRACK WAS ONLY FROM (
THIS STATICN AND IT HAD BECOME VERY AND WAS BEGINNING
TO FADE INT GROUND CLUTTER JCH LOWER
ALTITUDE IIS TIM PTC TALKED
CONTROL AND WARNING SQUADRON)
AND GC ANI NTROI AN BOTH
ONT A C T BOTH ASSUMED TO WEATHER. IDID NOT
BECOME CONCERNED WITH THE TRACK UNTIL H FOR A
WHILE AND I A MOVED MILES TOWARD HIS STATION.
AT THIS TIME OTHER SITES HAD LOST CONTACT WITH IT
DUE TO RANGE. LIEUTENANT BE DAS ON 7 AIRCRAFT
CONTROL AND WARNING SQUADROI AIRCRAFT CONTROL
AND WARNING SQUADRON. THE TARG MPS-14
RADAR EQUIPMENT. THE SEARCH COPFS OA-175.
DOWNGI EAKS.
DECLANIR UNCLASSIFIED
L
.

UNCL FIED
PAGE THREE
THE HEIGHT T RANGE SCOPE WAS OA-270. NO MAINTENANCE DIFFICULTIES
HAD BEEI NCOUNTERED RECENTLY. A THYRATHRON TYPE MODULATOR IS
USED II BOTH SETS THE AUTOMATIC FREQUENCY RADAR CONTROL CIRCUIT
WAS OPERA ATING PROPERLY. THIS STATION.EXPERIENCES. THE_USUAL. IN
ENCOUNTERED IN RADAR A CRSONNELL ARE WITH IT.
ALL PERSONNEL ARE FAMILIAR WITH AP ON THE EQUIPMENT USED.
THERE WAS N O AP EXTENDING THE GROUND CLUTTER AT THE TIME THE
OBSERVATION THE TARGET WAS MUCH LARGER THAN NORMAL TRAFEIC
RADAR RETURNS METER
AND AS IT APPRCACHED THIS STATION I7 1
MILES LONG ANI BSERVED
THE SIGI
SMALL INTEN SIGNAL BECAME WEAKFR WheN IT REACHED
LAND AND
SIGNAL WAS S NOTHING BUT A SmalI SPOTS. A SCAN RATE OF
5 REVOLUTIONS PER MINUTE WAS USED THE FREQUE SEARCH WAS
129S MEGACYCLES AND THE RANGE INDICATOR MEGACYCLES
PEMARKS: THE REASONS FOR CONCERN ON THIS TRACK WERE
(1) IT SEEMED UNLIKELY THAT THIS WA S WEATHER MOVING SO FAST
-DOWNGRADEH AT " VRAR
DECLAH
io- HAKS.
.
A

MORE IN THE DISTANCE IT TF SERVATICN.
AN OTHER UNUSUAL FA
ENDING UP AT ABOUT ALSO SLOWED
TO 3 KNOTS UPON REACHING LAND. OURS AFTER TRACK HAD
FADED IT WAS DISCOVERED THAT THE CURVATURE O EARTH CORRECTION ON
DUE HEIGHT RANGE INDICATOR WAS NCT FUNCTIONING PROPERLY.
THIS MAKES ALTITUDES IN FRR WTTH RANGE.
BY EXPERIMI T T AT THE AT THE
RANGE ANGE MUST HAVE BEEN
31, 001 31, 000 FT ALTITUDES LTITUDES CLCSER IN THE
STATION STATICN SUFFIC IENTLY ACCURATE .ACCURATE
UNCLASSIFIED (
DOWNGUANEY AT  VEAR INTERVAES:
DbCLAe . 12 YEARS. (
DOW Dikt 6200.10 DOn Dln 6200.10
M

Atn: Cs1. I-ffman
Scepe plot and phot-grophs an
T1 sheots
2. Rdaurs Hs GAVVIrS 5 '! Pn
Pluss frectim.
quinne's in an f.lins.
3. With rouol ts the wput-. Ca pitilictes
the OF blips wathe
rlius I a1 it Tt 7miles
yot it ! wfmiThnt thes ns
ppeors ld wo Iompt (= 1j
iinlf. 1 chrd aile C c
Tns -
4. fs shoull lhet
mtin otu t pr.n, 1 ton,
acc-3s1a n la Jc 1 C.e
we m il s-b Thea wad
a .extne.
5. In a 5. In an with with aly o 1 fe. t oftie.
wth M. T rs1.as mele
wih M Boyt lat Brtlat 1
f.1t1 f.11 Deisbly Deisbly 14 poll o ho ben d- becn t-
dsll gsi1 b< b< th Thes 60 phutes phuts
sT sf with witl g 1t
cnclusal co cus a P ma to. i ∫
thl tns → 1/with.
C Sigu
1

210600
SECURITY CLASSIFICATION (WGB9)
Multi UNOLASSIFIED
DISPOSITION FORM
FILE NO. SUBJECT
UFO Report T57-31737
TO AFCIN-4E4 FROM AFCIN-4E1 DATE 17 Dec 57 COMMENT NO. 1
ATTN: Capt. Gregory AFCIN-4Ela/V. D. Bryant/jc
72131/Bldg 263-D/Rm 8
1.  The subject report, submitted by 657 ACwRoN, Houm, Alabama, refers to a
target "15 miles long and 10 miles wide". Lacking any visual observation of so huge
a target, and inability of airborne radars to pick up Che target (while searching
the area for it) at 35 miles, it must be considered as obviously a false return on
the radar. Just what caused this false return is not known, and while the weather
may not move fast, the results of such weather changes frequently do move at very
reflected. Returns such as the one under discussion usually are due to phenomena
brought about by some weather condition. The fact that no aircraft were scrambled
for such an unusual target indicates there must have been compelling doubts in the
minds of the operating personnel as to the authenticity of the subject targets.
6
Classification Cancelled Classification. Cancelled
(or changed touycs (or changed touss
Auth Auth COL,USHP COL, USAP
By By_ TD(Uro) TDr(ur0)
DOWNGRADED AT R YPARINTERVALS DOWNGRADED AT R YPAR INTERVALS Date 24 64 Date 24  64
DECLAGHNOD DECLAGHNODY 2 YEARS: 2-YEARS: r1-126
DQD DIR 100.10 DOD DIR 100.10 AF2265-1p
UNCLASSIFIED UNCLASSIFIED Page_/ofPgs
Page_L of Pgs
Cy yLo40
DD 1FEB 50 FORM 96 REPLACES NME FORM 96, I OCT 48. WHICH MAY BE USED. 16--34801-8 * U. B. N4 GEPICE
a