Full text of "1949 09 6313474 ClarkAFB Philippines"

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74 PE CORD

Clark A

10, CONCLUSION

TRAIL)

NUMBER OF OBJECTS

V/A

LENGTH OF OBSERVATION + BRIEF SUMMARY AND ANALYSIS

i made th sontrail
t 20 minutes cas theccontrail
é “2 =~ Wa sm ck dot at

% TYPE OF OBSERVATION tl ect traveled s

Fi ‘ c ge of se
tir visual, Ground-Visua Sen oe Sen oes

. COURSE “4 Two F-51's left the base

pe ete ing of 360 degrees making

Hortherly roximately 120 miles. At

% PHOTOS mack to the base, It was the opinion of the iny
that these aircraft made thts contrail and that
in forming.

O Yes

-*% No = _—

% PHYSICAL EVIDENCE

O Yes
22 No

FORM
=TD SEP 63 0-329 (TDE) Previous editions of this form may be used,

1200 hours on 8 September 1949, whil

ly ten (10) miles southiest of
s a turn to the left, undersign
a, "Look up to the right’. Locking up to the

I saw an objec
-Owards the north at a high rate of speed leaving a con=brail. It was clicbin
teep angle (approximately 30°). Onca sighted I would estimate it to be at abou
115,000 feet, thirty (30) miles from our position and climbing rapidly. I reversed the |
:turn to the right and spread out the wing men while in the turn, ell the tine mintain- |
‘ing about a 35° bank. Upon reaching a heading of north, which tock not over a mimite |
fand a half (closer to a mimute) since it was a steep bank, the objuct had reachsd’an ;
jaltitude estimated to be 50,000 feet. It was dark in color and fer enough away so thit }
‘nothing more was distinguishable than a black dot. At about 50,000 feet it mde a sharu
jlevel-out not at all like an airplane leveling off after th» climb-making a definite i
"elbow" with its con-trail. ty first impression ws to start after it but obviously its’
lspeed was so great it was impossible. The con-trail was one long thin line and had not |
jdissipated to any extent at all from its beginning at the south to its present position |
almost out of sight heading north. Upon plotting its relative position fron us, and the’
quick lengthening of our geparation, it is estimated to have been traveling well over
800 miles per hour.

LOUIS J. SEBILLS, 6663A
ajor, USAF

t Cocznanding Officer

; 67th Pighter Squadron

STATRCNT i

i
4 /s/ Louis J. Sebille
}

i
: At 1202 hours on 3 September 1949, undersigned officer was at approximately 6,000 !
}feot in a flight of three F-5l's, iihile in a turn Major Sebille, Flizht Leader, H
jmotioned for ma to look toe the right. wevere heading appreximately south when under H
, Signed officer saw a con-trail at about 15,000 feet. ithen looking back at Major i
{Sebille he had reversed his turn so undersluned officer followed. ‘We rolled out of the!
lturn flying parallel to the con=treil. Undersiyned could see that it was at abouta jj
130 angle of clinb. Undersigned officer checked his compass heading at 350°, '

Prom the time undersigned officer first sav the con-trail to the time we completed}
the turn it had moved from a position seuth of us to a position far north of us. ,
Opject traveled straight except for a slight change of course. Iwnediately following |
the change of direction a slight rolling-in of the con-trail occurred. It was like the i
wake from a ship, but instead of rolling-out this wis curling-in. Undersigned officer ;
could see where the track continued in the climb to between 35,000 and 40,000 feet i
where it leveled off and continued on the straight course. }

j At ao tims did undersigned officer see what was making the con-trail. Undersigned j
lorricer sav its point of orizin the first time he looked but did not sse an sircraft. ‘
‘og he waz in «2 nosition to see again the con-trail had already deen onde,
'

tei on course parallel to ob

fm tusiergipmed officer cut

lst Ute, USAPs 67th Ftr Sodn., | |

STATEMBIT

xbout 1200 hours on 8 Sept ey 1949, undersignad officer
> for Major Sebille. ‘While in a turn to the left, ut an a
he saw a black spot giving a smoke trail which appeared at
After watching the rate of climb of th is object, 2t a high rat
a constant course, he realized it was not a skynriter. Ar poniia thie t
seconds later, he called the object to the attention of his Flicht Lead is saijor
egies e hajor Sebille, Major Sebille thon started a turn to the right, mat least
tandard rate turn or better. %, which took us approximtely one to one and one half
t et ses to complete 160° to 225° of turn which put us ca a course to parallel that
} the object. djhen the turn was started undersigned officer estimted the distance of ;
the object to have been at least Live miles to the South and approximately twenty !
| (20) miles away at an altitude of 15,000 to 20,000 feet. Upon completion of that turn!
| the object appeared to be approximately 30,000 to 35,000 feet, still oc hinbing and i
ahead of the Slight about twenty (20) miles on a course of about 340°. The Plight
+ paralleled the course of the con-trail ani the object continued to climb and make ug
look like we were standing still. It appeared to undersigned officer that it levsled
off between 49,000 and 50,000 feet, north of us. There wis 2 definite break or
“eloce"” in the con-trail when the object leveled off, ‘The con-trail could be seen
from the top of the cloud level, estimated to te 10, 00 feet to the odjects level off
} altitude. The trail wes dis tinct and held, so that it tas still visible from t
’ ground after we had landed at 1220 hours.

67th Pighter Squadron te

ted

SUT

At about 1200 hours 8 September 1949, undersi:ned officer was returning from an

i aerial gunnery tow mission and at anproxi:mitely 20 miles north of Clark Air Force 358!
at the altitude of 4500 feet, while on a southerly heading, undersigned officer

} noticed a very dense con=trail in the vicinity of Subic Ray. The con-trail ws extend

ing north at a hijh ra te of climb and speed, Undersirfned officer could not clearly

discern the object g this conetrail, From the time undersigned officer first sai }
this object until it diane eared up near the vicinity of Lingayan Gulf a matter of only}

twa or three minutes had elapsed. At first sight this object appeared to be nee an
altitude of about 15,000 feet and atout 20 to 25 miles southwest of Clark, This object!
wag at an estimted 50,000 feet by the tine undersigned officer lost sight of . ee :
object appeared to be in level flight just before it disappeared from view.

! /s/ R. J. Searau t

; R. J. SHRAU AOKELZUS i

\ lot Lbs, USAF :
,

‘UNCLASSIF!

———

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y ke ee UNCEASSIF is De
AF FORM W2—PART HH 9 oz! <5 8 9

CLASS TCATION:

AIR INTELLIGENCE INFORMATION REPORT

| |
Ass't C/S, A-2 PEAF, APO. 925 | — TR+365-49 we ION Pi 12)

STATRENT |

At about 1200 hours, 8 Septecber 1949, undersigned officer was at the PX Service |
Station #4 at Clark Air Force Base, and spotted a vapor trail south ¢ ox tha fiold,
coming from the direction of Florida Blanca. Approximately ons and one half minutes
later the trail was far to the north. During the minute and a half that he watched
this vapor trail it did not appear to got wider from where he first saw it to where
hea lost sight of it. This trail came from the direction of Florida Dlanca going north)
and passed over the wast side of Clark Air Force Rage, wheres it seemed to make 2 i
slight change of course to the left, approximately 10”, and continuad on ina |
northerly direction. Undersigned officer could not tell whether cr not the vapor i
trail was changing altitude. It is hard to estimte the height of the vapor trail i
but it seemed to be above 30,000 feet. He could not see what caused the vapor trail. |
Where he saw the vapor trail make a slight change of course, the trail appeared to j
burble for about ten seconds and remain in a burole state. Then the vapor trail t
resuned it's straight unbroken form. i

Undersigned officer had been flying from 0800 to 1145 hours, 8 Septembar 1949, |

| at altitudes between 20,000 and 30,000 feet ani watched Gel (Ground Control Tabercept) |

ships flying at altitudes of 25,000 to 30,800 feet, and they were leaving no vapor
trails and he waa leaving no vapor trail.

/s/ Harry C. Moore
HARRY C. HOOPS, AQ~711850
lst Lt., USAP
67th Fighter Squadron

STATEMENT

On the Eth of September 1949, while on duty as Fighter Interception Controller,
had a flight of two F=51's at 30,000 feet. They left the base at approximtely 1135
hours on a heading of 300° making good a course of 350° for approximately 120 miles,
At this time they were given a heading back to base,

It is my opinion that the conm—trails that were sichted twenty-five ainutes later
were made by this flight and were delayed in forming.

From my observation I could not see any other aircraft in the air at that
altitude during this time.
/s/ Donald &. Williams
DONALD E, WILLIAMS
lst Lt., USAP
622nd AC & |
SS a ee a ee ee ee
é CAS UELNT iS INFORMATION AFF THE NATIONAL DEFENSE 0 UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE ACT “OU S ©
5 > gfS TRANSMISSION OF REVELATION OF ITS CONT N ANY MANNER TO AN UNAUTHORIZED PERSON IS POOHISITED BY Lt
war's ? PRODLCED IN WHOLE OF IN PART. BY OFTHE? THAN UNITED STATES AIR FORTE 4 ably ES, EXCEPT BY PERMISSION OF THE O)PTCTUNC

Unc

ees ae INCLASSIFIED @ ‘

AF FORM 112-—PART —

AIR INTELLIGENCE INFORMATION REPORT

FICATION,

|
winiweranel %t a2
Asa't C/S, An2 FEAP, APO 925 | TR-365-49 Jaen at: = fen) 32

| STATDZNT j

' Undersigned officer, with Lt. Ball as Wing Man, took off from Clark Air Force

; Base at 1010 hours, 8 September 1949 to fly Callibration Mission for 622nd AC & W

, Squadron, ter we had climbed to 25,000 feet over the field, Varnish Control gave |

a Victor of 360° and continue clinbing until we reached 30,000 feet. We continued on |

to heading and at a point east of Lingaysn was given a 5° correction bo the right. |

de followed this course about 120 miles north of the field. At this point Varnish |

gave us a heading of 170°, which we followed, and we began to let down at appraxcimate-|

Ty 15° 20 minutes North and 120° 55 minutes fast. We landed at 1240 hours. While |

we were flying at 30,000 feet we did not see any vapor trails, but noticed scattered

thunder showers circling the entire valley. |
'
‘

/s/ Nalcola B, Edan
MALCOLU B. EDEN = 739892
Capt., USAF
44th Fighter Squadron

STATEAGNT

Clark Air Force Base at 1010 hours, 8 September 1949, to fly Callibration Mission for |
| 622nd AC & W Squadron. After we had climbed to 25,000 feet over the field, Varnish
; Control gave a Victor of 360° and contirme climbing until we reached 30,000 fast. ive
| continued on to heading and at a point east of Lingayen ws given a 5° correction to
the right. We followed this course about 120 miles north of the field, At this point
Varnish gave us a heading of 170° which we followed, and we began to let dow at
approximately 15° 20 minutes north and 120° 55 mimtes Inst. We landed at 1240 hours. |
While wa were flying at 30,000 feat we cid not see any vapor trails, but noticed
| scattered thunder showers circling the entire valley.

j
Undersigned officer, while flying as Wing Wan for Capt. Eden, took off from

ERNEST BALL - 629618
lst Lt., USA?

{

/a/ Brnest Ball
4th Pighter Squadron
|

Sane ne Uta EIDE
* SML% CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE OI THIN THE MERNING OF TY " T.%
415 THANSMISGION OR THE REVELATION OF ITS ' THORIZED PE »

JOUCEO IN WHOLE OF IM PART, BY OTHEH THAN UNITED STATES AIR FORCE AGEN IES,

usar “ay ah
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UNCLASSIFleD .

SLassmtariony

cece oral lee

AIR INTELLIGENCE INFORMATION REPORT

AF FORM W12—PART UI
WOT TINE tHe

]
|

Weather report covering the area West of Clark Air Force Basa from Dataan Peninsula
to Lingayen Gulf as of 1200 hours, @ Septamber 1949.

Thin high cirrus and thin cirrus stratus overcast at about 20,000 feet.

‘

| From Bataan to the area West of Florida Blanea: (14°53!N = 12073215):

} Fairly clear condition with an average of 5/10 cumlos clouds and a few ©
' towering cumlos reaching up to 12,000 fest. A few widely scattered

} showers.

| From Florida Blanca to Lingayen Gulf: ;

8/10 low clouds with a few cumlo-nimbus extending up to 25,000 feet.

More rain and showers were closer together than in the area from
Bataan to Florida Blanca, Visibility on entire route was about 15
miles except in the shower areas,

}
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wore OC UMEN | CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENCE OF THE UNITED STATES WITHIN THE MEANING SPIONAGE ACT. SU S
HAND ML AGAMENDED ITS TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNE® TO AN UNAUTHORIZED N 1S PROMIMITED BY LA
#EPROOLCEO IN WHOLE OR IN PART, BY OTHER (Has UNAT HEES AIR FORCE aceNcies, EXCEPT Be PERMISSION OF THE DIRECT
SAF. ORCERSS bee ” i . aun

(CLASSIFICATION) |

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ORIGINAL 1EPORT NO.
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Philippine Repudlic De 265-49 “f= tf So

AIR INTELLIGENCE INFORMATION 32PORT

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Supplementary Report of Unidentified Airerart or Flying Obje

Southwest, west and Northwast of Clark AF3 hast ¢ b/S, A-2, PIAF, APO 925

4 Ontodep 1949 8 September 1949 n-2

Captain S. F, Nepford Observers, USAF Officers

MMA eS hoe se sum anary Of Pepaeh Gee vant hernce 1M Bnet weer ntente jnrayreph. Lie new iat begin tates WOE Pree nde Det

1. At approximately 0400 hours ZEBRA, 8 Septenber 1949, five o
67th Fighter Squadron, 18th Fighter Group, observed a peer clin Bz
dagres angle and at a high rate of speed in a Northerly direction. The object
causing this con-trail was not identified. Several of the observers saw only the
con=trail and did not see what had caused said con-trail.

2. Radar Warning at the tine of sighting was in operation and sas an the
rocess of calibration, using two F-51 type aircraft for*this purpose. The Fighter
Siesta Controller oa duty did not identify any other aircraft i in the air at that
ims and is of the opinion that the con-trail wes formed by said two FPea5l aircraft.
This is discounted as thirty minutes time elapsed between the time of sighting and the
time these two aircraft left Clark Air Force Base at an altitude of 30,000 feet,
heading 360 degrees, and alsd only one con-trail was observed.

mentioned con-trail,

a Tee

{
3. This section 1s unable to discern what object or phanomena caused the above :
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Map: Plotted estimated course
of con-trail.

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Pomniveam st =» & UNCLASSIFIE

PART II - RS QIRBANS

Genéral
1. Date of sighting: 8 September 1949
2. Time of sighting: 0400 hours ZEBRA
| 3. here sighted (observers position):
a. Cround

i Ovserver was at PX Service Station 74, Clark Air Force Base,
?
i (15°115'N - 1209315'R).

be Air

Aircraft numbers 1, 2 and 3:

(1) F-51 type aircraft; airspeed between 230 and 240 miles per hour; ~
+ altitude G,000 feet; direction of flight; 130° before turn, 350° after turn.

t (2) Distance and direction from knovm landmark: Approximately 8 niles
t South Southwest of Clark Air Force Base at first sighting.

(3) Clock position from observer's aircraft: Seven o'clock.
(4) Latitude and longitude: (15°15'N - 12092912).
Aircraft number 4:

} (1) F-5l type aircraft; airspeed between 230 and 240 niles per hour;
altitude 4,500 feet; direction of flight approximately 130 degrees.

(2) Distance and direction from known landmark: Approximately 20 miles
North of Clark \ir Fores Base.

(3) Clock position of object from observers aircraft: Seven o'clock.
(4) Latitude and longitude: (15°22'N - 120°37'2).
4. Number of objects: One.

5. Ovservable celestial phenomens or planets that may account for the sight

j None known or observed.

&. Distance of object from observer:
laters uid 20,000 feet above the obs
angle.

Te ize in ees sper ety L bi

oes

at ah > bs Seeing ae. © ttt

Seger eee

bs . - ~
F FORM V2—PART ft 9

AIR INTEL

Aas't C/S, A-2, PSAP, APO 925 TR#3554,9 vee se 2

8, Appearance of object: Yajor Louis J, Sabille, 6663A, Commanding Officer, 67th |
Fighter Scuadron described it as being dark in color and far enough avay so tint ;
nothing more was distinguishable than a black dot. lst Lt. R. J. Semrau, iC-N2LS, !
}
'

67th Fighter Squadron states he saw a black spot giving off what appeared to be a
smoke trail and then saw that it was a con-trail. The other observers did not \
discern any color or description of an object but did see the con-trail. }
9. Direction of flight: Heading of approximately 350 - 360 degrees from Sataan |
Peninsula (14°%5'N = 120925!) to the area South of Lingayen Gulf. (15°50" ~ '
12091013), 3 : {
|

10. Tactics or maneuvers: Object clinbed at a 30 degree angle up to 25,000 = 30,060 |
fest at which point it made a slight change of course to the left and continued on the |
30 degree climb up to 40,000 = 50,000 fect where it abruptly leveled off and continued |
on the same heading with no change in altitude. H

Li. Svidence of exhaust: }
a. Color of smoke; no smoke was observed. Lt. Semrau at first thought the trail
was very similar totrail left by a siqpvriter but as the trail climbed he saw it tobe |;

a con-trail. i
b. Length: Approximately eight miles.
Width: Could not estimate the width. It appeared to be thin, yet definite,
and traveled in a straight unbroken form with one exception, when it made a slight
course correction. Refer to statements of Li. Cree and Lt. Lioore.

c. Odor: Unknown,

d. Rate of evaporation: Thirty minutes after the first sighting the con-trail
was still discernable. ‘ t

e. Does trail vary with sound? Unimown,
12. Sifect on clouds. No effects observed. |
13. Lights: Mo lights observed, |
14. Support: Unknown.
15. Propulsion: Unknow.
16, Control and stability: Ucinom. " |
L7. Air ducts: Unknow, H
12. Spoed—PH: Estimated at well over 1,000 MPH.
19. Sound OAT

Ralative to the Cbserver

1. Name: Major Louis J. Sebille, 6563A. .
2. Address: 67th Fighter Squadron, 13th Fighter Group (SE) APO 74.

3. Occupation: Pilot, single engine, 2ls0 Squadron Commander, USAF.
4. Place: Clark Air Force Base.

5. Pertinent hobbies: None

6, 7 and 8a: Wajor Sebille is on flying status with a total of 3,000 hours
flying time, of which time, 250 hours is combat time.

: Sb, Attention yms draw to object by a call from Left ing Jan,
} Lt. 2. J. Semrau.
i

Sc. Major Sebille stated he was aot fatigued and vas airborne
approximately one hour at the time of sighting. =

9. Witnesses: as listed in report.

~ on ne

i 10. Comments of interrogator: There is no question as to the intelligence and
| character of Major Sebille. During the interrogation he was caln and stated the
Pe facts as observed. valuation of statement given by Major Sebille B-2,

1, Names 1st Lt. R. R. Cres, AO-834963
2, Address: 67th Pishter Squadron, 18th Fighter Croup (SZ) APO 74

3. Occupation: Pilot, single engine, Assistant Squadron Aq2 USAF.

&. Place: Clark Air Force Rse.

6, 7 and 4a. Lt. Cree is on flying status with 2 total of 1300 hours flying
which time 24 hours is combat tins.

80, Attention wes drawn to object by a motion given by the Flight Leader,
Uajor Sebille. ;

Sc, to fatigue felt and duration of flight at tine of sighting rac
aporeximately one hour.

{ :

5. Pertinen® hobbies: lone
| vitnesses: As listed ia report.

15 Of interrozator: Lt. Cree ia the Squadron Intelily

bad. Se Sanook tia lntter fart oi

UNCLASSIFIED:

1. ‘ame: Ast Lt. R. J. Semrau, Ad-d42148.

2. Address: 67th Fighter Squadroa, isth Fighter Group (SE) APO 74
3. Occupation: Pilot, single engine, USAF.

4. Place: Clark Air Force Base.

5. Pertinent hobbies: None.

6, 7 and 8a, Lt, Semrau is on f ying status with a total of 1250 hours flying

8>, Attention was drawm to object by sighting which at first appeared to
be a smoke trail.

8c. No fatigue felt and duration of flight at time of sighting vas
approximately one hour.

9. Witnesses: As listed in report.

10. Comments of interrogator: Lt. Semreau was the first of the three ship

forsation to sight the object. Nis character is excellent. Evaluation of statement:

given by Lt. Semrau 3-2.
dD.
2. Namet lst Lt. F. S. Welch, AO-721563.
2. Address: 67th Fighter Squadron, 18th Fighter Group (SS) APO 7h.
Ze Occupation: Pilot, single engine, USAF.
4. Place: Clark Air force Gese.
5. Fortinant hobbies: None

6, 7 and da. Lt. welch is on flying status with 2 total of 14,00 hours flying
tins, of which time, 207 hours is combat time.

8b. Attention was drarm to object by a very dense con-trail extending at
a high rate of climb and speed.

Se. Slight fatigue felt and duration of flight at time or signting was
approximately one hour and forty-five mimites. Lt. Welch, at tine of sighting, vas
returning from an aerial gunnery tow mission.

1. Mame: lst Lt. Marry C, Moore, AO-711850.

'
3. Occupation: Pilot, single engine, USAF. H
4. Place: Clark Air force Base. |
5. Pertinent hobbies: None.

6, 7 and Ba. Lt. Moore is on flying atatus with a total of 1050 hours of flying

}

{

| 2. Address: 67th Fichter Squadron, 15th Fighter Group (SS) APO 74. }
’

;

}

i tine, of which time, 147 hours is combat time.
’

8b. Attention was drawn by sighting a vapor trail that wes forming at a
high rate of speed,

8c. Lt. Moore vas on the ground at time of sighting.
; 9. Witnesses: As listed in report.

10. Comments of interrogator: valuetion of statement given by Lt. Moore is
Relative to Radar Siphtings

1. Re radars Operating on gromd: Object was not sighted by radar. Rofer to
statement given by lst Lt. 0. 3S. Williams, 622nd AC & ‘ Squadron, Clark Air Force
Base.

‘

GSNSRAL

1. Teletype sequences cf local weather conditions:

“eather report coveriag the area West of Clark Air Force Base fron Bataan
Peninsula to Lingayen Gulf as of 1200 hours, 3 September 1949.

Thin high cirrus ana thin cirrus stratus overcast at about 20,000 feet.

From Bataan to the Area Jest of Floridablanca: (14°53'N - 12093213)

Fairly clear condition with an average of 5/10 cumilos up to 12,000 feet.
A few widely scattered showers.

Fron Floridablanca to Linzaven Gulf:

H
| 8/1O low clouds with a few cunulo-nimbus extending up to 25,000 feet. ors
rain and showers were closer together than in the area from Sataan to Floridablanea.
Visibility on entire route ws about 1,9 niles except in the shower areas.

ugure 1067. millebars

\itineter Setting 29.78 inches

«+ AGSIFIE!
UNCLASS!

‘ ~

Surface 150° at

2,000 feet 150° at

4,000 feet O49 at 1

6,000 feet ogo? at 1
8,000 feet 140° at 4 Knots
10,000 feet 160° at 18 Knots
12,000 feet 120? ab 18 Knots
U,,000 feet 120° at 6 Knots
16,000 feet 220° at @ Knots
18,000 feet 120° at 10 Knots
20,000 feet 120° at 10 nots
25,000 feet 050° at 10 Knots
30,000 feet 050? at 17 Knots
35,000 feet 040° at 26 Knots
40,000 feet 040° at 39 Knots

Local flight schedules of commercial, private, and military aircrai't

; flying in vicinity at the tine:

_ None in vicinity at the time. The two F-51 type airerft that flew the

calibration mission for 622nd AC & ii Squadron left this area 30 minutes
prior to the sighting.

Possible releases of testing devices in vicinity:

Negative reply from Air Attache in Manila, U. 5S. ilavy, Philippine Arny
and Philippine Air Force.

No evidence that object contacted earth.

Object did not come close to o

rving aircraft.
No bhotographs or sketches available.

Secure signed statement:

No fragments er physical evidence obtainable.

No radio antenna, projections or extensions were observed.

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Full text of "1949 09 6313474 ClarkAFB Philippines"

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