28975045.pdf

PROJECT 10073 RECORD CARD

|  1. DATE | 2. LOCATION | 12. CONCLUSIONS  |
| --- | --- | --- |
|  21 November 1957 | Houm, Alabama | ☐ Was Balloon ☐ Probably Balloon ☐ Possibly Balloon  |
|  3. DATE-TIME GROUP Local GMT 21/0600Z | 4. TYPE OF OBSERVATION ☐ Ground-Visual ☑ Ground-Reder ☐ Air-Visual ☐ Air-Intercept Reder | ☐ Was Aircraft ☐ Probably Aircraft ☐ Possibly Aircraft  |
|  5. PHOTOS ☑ Yes ☐ No | 6. SOURCE Military | ☐ Was Astronomical ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  7. LENGTH OF OBSERVATION not given | 8. NUMBER OF OBJECTS one | 9. COURSE down  |
|  10. BRIEF SUMMARY…

UNCLASSIFIED
1) 4E4
2) 4-4X2G
DSO

NAR. 29694
24 NOV 57
AC PRIORITY
FM COMDR 657 ACWRON HOUm ALAT TCTG 2383352 BOOK MSG TO COMDR ATIC WP AFB OHIO

OPS 881L. FOR CIC STEWART AFB NEWBURGH.
EDUCATE M-126, 22 NOVEMBER 57. OBSERVATION TIMES FROM 21 NOVEMBER 57 06002 TO 06502 OR 0001 TO 0250 CENTRAL STANDARD TIME. WILLIAM H STUCD SECOND LT UNITED STATES AIR FORCE AO 3055619 OF 657 ACFT CONTROL AND WARNING SQUADRON MADE DUE OBSERVATION. THE GEO REF OT THIS STATION IF FJQ 3340. STAFF SERGEANT SHENKLEBURG, AIR FORCE SPECIALITY CODE 27350, STAFF SERGEANT STEWART, AIR FORCE SPECIALITY CODE 27350 AND AIRM…

PAGE TWO

55 KNOTS THE TOP OF HEIGHT RANGE INDICATOR INDICATION WAS 16, 333 FEET AND THE AVERAGE BEING 12, 33 FEET. SEE REMARKS SECTION. NO ACFT WERE SCRAMBLED ON THIS TRACK. CIVIL AERONAUTICS ADMINISTRATION HAD BEEN NOTIFIED OF THE SITUATION ADN 2 COMMERCIAL AIRLINERS PASSING 35 MILES NORTH OF THE TRACK SEARCHED OVER IT ON THEIR RADAR EQUIPMENT WITH NEGATIVE RESULTS. IT SHOULD BE CONSIDERED THAT THIS WAS AT A TIME WHEN THE TRACK WAS ONLY 33 MILES FROM THIS STATION AND IT HAD BECOME VERY WEAK AND WAS BEGINNING TO FADE INTO THE GROUND CLUTTER. IT ALSO WAS AT A MUCH LOWER ALTITUDE AT THIS TIME. …

UNCLASSIFIED

PAGE THREE
THE HEIGHT RANGE SCOPE WAS OA-278. NO MAINTENANCE DIFFICULTIES HAD BEEN ENCOUNTERED RECENTLY. A THYRATHRON TYPE MODULATOR IS USED IN BOTH SETS. THE AUTOMATIC FREQUENCY RADAR CONTROL CIRCUIT WAS OPERATING PROPERLY. THIS STATION EXPERIENCES THE USUAL INTERFERENCES ENCOUNTERED IN RADAR AND ALL PERSONNEL ARE FAMILIAR WITH IT. ALL PERSONNEL ARE FAMILIAR WITH AP ON THE EQUIPMENT USED. THERE WAS NO AP EXTENDING THE GROUND CLUTTER AT THE TIME OF THE OBSERVATION. THE TARGET WAS MUCH LARGER THAN NORMAL TRAFFIC RADAR RETURNS. WHEN FIRST OBSERVED IT WAS 18 MILES IN DIAMETER AND AS…

UNCLASSIFIED

PAGE FOUR
STATIONS WERE FOLLOWING CLEAR WEATHER, (2) THE POSSIBILITY OF
CHAFF WAS CONSIDERED BUT THE HEIGHT RANGE INDICATOR INDICATION
WAS 13, 333 FEET LONG AND 13 MILES WIDE MAKING IT SEEM
UNLIKELY TO BE CHAFF. FURTHERMORE, CHAFF SURELY WOULD HAVE DISPERSED
MORE IN THE DISTANCE IT TRAVELLED UNDER OBSERVATION.
AN OTHER UNUSUAL FACT WAS THAT IT STEADILY DECREASED IN ALTITUDE
ENDING UP AT ABOUT 3333 FEET BEFORE IT FADED. IT ALSO SLOWED
TO 33 KNOTS UPON REACHING LAND. 3 HOURS AFTER THE TRACK HAD
FADED IT WAS DISCOVERED THAT THE CURVATURE OF EARTH CORRECTION ON
DUE HEIGHT RANGE INDIC…

Inclosures removed
(no classification)

Request for Analysis - Electronic UFO Reports
AFCIN-434 25 NOV 57

AFCIN-431
Atr. Col. Hoffman

1. Request that the attached radar reports together with scope plots and photographs be reviewed and an analysis be made by comment attached on reports sheets.

2. Radar UFO report on TTHD carries a "Priority" classification. The Thru (Plots and Photos) has resulted in queries from Headquarters USAF reporting our findings.

3. With regard to the latter report - a cursory plot indicates that the UFO blips appeared within a six inches radius of the radar unit un…

21/0600-F

Nulite
DISPOSITION FORM
SECURITY CLASSIFICATION (if any)
UNCLASSIFIED

FILE NO.
SUBJECT
UFO Report T57-31737

TO AFCIN-4E4
ATTN: Capt. Gregory
FROM AFCIN-4E1
DATE 17 Dec 57
AFCIN-4E1a/V. D. Bryant/jc
72131/Bldg 263-D/Rm 8
COMMENT NO. 1

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 the 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 …