AF FORM  112
AP P R O V ED 1 JU NE 1948
COUNTRY
Japan
REPORT NO.
e-7-57
1876836
AIR INTELLIGENCE INFORM ATION REPORT
SUBJECT
(U ) U nidentified Flying O bject R eport 
AR EA R EP O R TEDO N ~
G uam, M.I. _______
DATE OF REPORT '
8 Feb 57
PREP AREO BY (€W$r)
O pt Alan G , P ounds ATILO
BATE OF INFORMATION
15 Jan 57
R EFER ENCES (Cbn/rt/ number, directive* pr^dus report rtc., os applicable}
FROM C40HICJTJ
DI FEAF ATILO
EVALUATION
source
Messages from D,/0 7th Air Force (Adv)
AFR 200-2 U nidentified Flying O bject R eports
SU MMAR Y: (^n£dr txmei&e mammary o/ report- Give ^igrufwance m final 0ft£-&#9&ftC« paragraph. Lht inchsurm al lower left. Begin text of report on AF Farm UH- Fart IL)
1, This report forwards information received by message from Commander j 7th 
Air Force (Advanced) G uam, M*I>, concerning an unidentified aerial blinking light 
observed by an F-86D pilot flying in the G uam radio range holding pattern on the 
night of 31 Dec 56.
2, Further investigation determined that a lighted weather balloon had been 
launched one hour and thirty-eight minutes (1:38) prior to the sighting. The balloon
was lost from the view of the ground station one hour 
to the incident*
and ten minutes (1:10) prior
3. U nless the lighted balloon which was launched 
functioned and remained at a relatively low altitude, 
can not be readily explained.
prior to the sighting mal- 
the U nidentified Flying O bject
AP P R O V ED:
m»
. KILLING  
Colonel, U SAF 
Director of Collections
•5
1MCLS.
WAS
DISTRIBUTION SV ORIGINATOR
AFO BW^ W-P  AFE, 0; ALASKAN AIR CO MD; AIR DEFENSE CO MD; 5th AF; 7th AF; 3rd ADIV ; 
CO MKAV MAR , G U AM
NOTE THIS DOCUM ENT CONTAINS INFORM ATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE M EANING OF THE ESPIONAGE ACT. 50 U. S C- 
31 AND 32. AS AM ENDED. ITS TRANSM ISSION OR THE REVELATION OF JTS CONTENTS IN ANY M ANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW
IT M AY NOT BE REPRODUCED IN WHOLE OR IN PART, BY OTHER T 
INTELLIGENCE. USAF.
AGENCIES, EXCEPT BY PERM ISSION OF THE DIRECTOR OF
(CLASSIFICATION)
UNI
10—6£5e&-2 o. s< w»En«MtKT FAiNiiN? WFICC


AIR INTELLIGENCE INFORM ATION REPORT
AF OHM III—PART II
APPROVED 1 JUNE 1948
FROM (A^Hcr)
DI FEAF ATILO
G 4.. £ ✓
(CLASSIFICATION)
R EPO R T N O .
IB-7-57 PAGE PAGES 
_______
1. At 16102 on 31 Dec 56 an F-86D pilot flying in the G uam range holding 
pattern sighted an unidentified blinking white li^rt. Following is a copy of the 
unclassified message forwarded from Commander, 7th Air Force (Advanced), G uam, 
Marianas Islands, as a result of the sighting:
"The following report submitted in accordance with paragraph 7, AFR 200-2,
dated 12 Aug 1954 and FEAF Supplement 1 dated 30 March 1956. This message in 12 
parts.
P art 1. A. R ound.
B. Dime.
C. White.
D. O ne.
E, No.
F. No.
G . None.
H. Not discernible.
I. Blinking white light (remained constant for approximately four (4) seconds 
then blinked off and on quickly remaining constant again for the same 
amount of time).
P art 2. A. O bject passed under aircraft while it was in a holding pattern on the G uam
range. It came from a westerly heading.
B. Azimuth was thirty (30) degrees right, elevation about 25 degrees lew.
C. P ilot turned with the object and descended so azimuth and elevation was not 
discernible.
D. The object came in from a westerly heading and pilot, thinking it was a ' 
B-47, turned down and into the object. The object proceeded to turn with : 
the aircraft. P ilot began to get suspicious of object when he was unable ! 
to close with it and it continued to turn with him on the tun.. The 
pilot knew there were no other fighters airborne at the time and other 
aircraft stationed in the vicinity could not turn outside the F-86D's 
turning radius. The object passed between the interceptor and the city of 
Agana, G uam, and at this time no silhouette was seen. The object proceedec 
south for approximately 10 miles at the pilot1 s altitude (20,000 MSI) then 
it climbed to about 30,000 MSL and came directly over interceptor. P ilot 
turned aircraft to keep it in sight and it started circling him. The 
interceptor was placed in afterburner and turned into the object trying to 
head it off. It continued to turn around aircraft and he was unable to 
gain on it or close with it. Then it proceeded west at aircraft altitude ‘ 
and returned over fighter at 10 to 15,000 feet high. P ilot again turned 
to keep it in sight and it circled fighter again. At this time pilot hadtc 
break off and return to Andersen Air Force Base due to low fuel remaining.
E. Contact was lost when pilot returned to base.
F. Approximately 10 minutes.
P art 3 A. Air visual.
B. None.
C. F-86D, 52-9995, 26,000 feet MSL, 242 degrees, 200 knots, Andersen AFB.
P art 4 A. 1610Z, 31 Dec 1956.
B. Night.
P art 5- In aircraft over G uam radio range.
P art 6 A. N/A.
NOTE; THIS DOCUM ENT CONTAINS INFORM ATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE M EANING OF THE ESPIONAGE ACT. 50 U. S. C-
31 AND 32. AS AM ENDED. ITS TRANSM ISSION OR THE REVELATION OF ITS CONTENTS ity ANY M ANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT M AY NOT BE REPRODUCED IN WHOLE OR IN PART. BY OTHER T>^ UNITED STAT ES/\W* FORCE AGENCIES. EXCEPT BY PERM ISSION OF THE DIRECTOR OF
INTELLIGENCE. USAF.
1CLASSI FiCATlW) 16 -&S£^G-I Yr r. f. &3vreiriit»c Meimnc amcr


AF FORM 112—PART I!
APPROVED 1 JUNE 1948
AIR INTELLIGENCE INFORM ATION REPORT
FROM (A0*W)
DI FEAF ATILO
REPO R T N O .
IR -7-57 PAGE 3 °F 4 PAGES
B. Brunson, Ted, First Lieutenant, List Filter-Interceptor Squadron, alert 
pilot, observer considered very reliable, no other supporting.
P art7. A.
B.
C.
D.
E.
F.
Broken clouds at approximately 3,000 feet. Clear above. V isibility 15 
miles plus.
Surface-60 degrees at 9 knots; 6,000-100 degrees at 24 knots;10,000-100 
degrees at 20 knots; 16,000-70 degrees at 16 knots; 50,000-120 degrees 
at 35 knots; 80,000-not available.
10,000 feet.
15 miles.
O vercast 10/10.
Negative.
P art 8. None.
P art 9. Tried to get type and shape and to observe the object. Succeeded only in 
keeping it in sight.
P art 10. No other traffic known. A check of all fields and control stations 
verified this.
P art 11. Charles E. Heidenreich, 2nd Lt., U SAF, Intelligence O fficer, 41st 
Fighter-Interceptor Squadron.
Comments: Submitted without comment.
P art 12. None.n
2. Since the U FO B was similar to sightings of weather balloons, 7th Air Force 
(Adv) was advised to check on any lighted balloons that might have been released at 
a time to correspond with the sighting. Confirmation was received that a lighted 
balloon had been launched at 1432Z 31 Dec 56 by the U . S. Weather Bureau at the U . S. 
Navy Communications Station (13°13’N - 144°50'E). The balloon was last tracked five 
(5) miles west of the station at 13°33’N - 144C46'E, altitude 20,000 feet at 15002. 
The observing pilot was again questioned and he stated that he did not believe that 
the U FO B was a weather balloon because the U FO B maneuvered with the F-86D and accel­
erated past his aircraft.
3. For convenience in evaluating this report, a sketch of the general locality 
of the incident follows:
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NOTE: THIS DOCUM ENT CONTAINS INFORM ATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE M EANING OF THE ESPIONAGE ACT, 50 U. S. C.-
31 AND32. AS AM ENDED, ITS TRANSM ISSION OR THE REVELATION OF ITS CONTENTS IN ANY M ANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW,
IT M AY NOT BE REPRODUCED IN WHOLE OR IN PART. BY OTHER TH^I UNITED STATE^UR.FORCE AGENCIES. EXCEPT BY PERM ISSION OF THE DIRECTOR OF
INTELLIGENCE. USAF. 7


4F FOR« 112—PART II
PROVED 1 JUNE 1943
AIR INTELLIGENCE INFORM ATION REPORT
fiQ£i£(CLASS]?
FROM (j^SteC$r) REPORT NO,
DI FEAF ATILO IR -7-57 PAGES
CO MMENTS O F THE P R EP AR ING O FFICES:
4. The check on the 
1432Z and had ascended to
limited weather balloon showed that it was launched at 
20,000 feet at 1500Z. It was lost from view at that time
It’s ascension rate was somewhat slower than standard. Normally a weather balloon 
would be near the 27,500 foot level twenty-eight (28) minutes after launching.
5. If the weather balloon had ascended normally, it would have been much higher 
than the altitude of the reported sighting. If the balloon had malfunctioned and 
leveled off or descended, it could possibly explain the reported U FO B.
ALAN G . P O U ND
Captain, U SAF
Air Tech Intel Liaison O fficer
CO KENTS O F THE AP P R O V ING  O FFICER :
This report, was prepared in its entirety by a member of the Air Technical 
Intelligence Liaison O ffice,
HJK
^^5W^ 
(CLASSIFICATION) ^ U . 9. G O TEM M ENt M UH TIM C O FFICE
NOTE: THIS DOCUM ENT CONTAINS INFORM ATION AFFECTING THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE M EANING OF THE ESPIONAGE ACT. 50 U.S.C,^
31 AND 32. AS AM ENDED. ITS TRANSM ISSION OR THE REVELATION OF ITS CONTENTS IN ANY M ANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY LAW.
IT M AY NOT BE REPRODUCED IN WHOLE OR IN PART. 8Y OTHER THAN UNITED STATES AIR FORCE AGENCIES. EXCEPT BY PERM ISSION OF THE DIRECTOR OF
INTELLIGENCE. USAF.


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