PROJECT BLUE BOOK

PROJECT 10073 RECORD
1. 'DATE TIME GROUP LOCATION
2 August 66 03/0430Z San Luis Obispo, California (3 Witnesses)
3. SOURCE . CONCLUSION
Civilian Possible (AIRCRAFT gut
4. NUMBER OF OBJECTS
Two
5. LENGTH OF OBSERVATION 11. 11. BRIEF SUMMARY AND ANALYSIS BRIEF SUMMARY AND ANALYSIS
20 - 60 Seconds Observers I Observers noted round, whitish I noted round, whitish lights that appeared to have a lights that appeared to have a
6. TYPE OF OBSERVATION TYPE OF OBSERVATION small red light at the small red light at the bottom. bottom. Objects were in formation; one
behind the other, during entire sighting. No tail, trail, or
Ground-Visual (BX) exhaust was observed. exhaust was observed. Objects moved from right to left in
7. COURSE straight line and then turned slightly to the left just before straight line and then turned slightly to the left just before
di sappearing. Due to apparent fog conditi on, investigating disappearing. Due to apparent fog conditi on, investigating
NNE NNS officer beleives observers saw an aircraft with its lights orr:cer beTeives bservérs saw an aircraft with its lights
8. PHOTOS shining through the fog.
Yes
XNo
9. PHYSICAL VIDENCE
Yes )
EXNo
FOR
FTD SEP- 0-329 (TDE) Previous editione of this form may be used.
.
.
1
.
.

Observer number 2 - 20 degrees elevation and east northeast.
(3) Observers 1 ject seemed
motion.
(4) -
(5) Observer number 1- 30 minutes.
Observer number 2 - 20 minutes.
c. Manner of observation:
I
(1) Observers 1 and 2 - ground, visual.
(2) Observer number 1 1 - Japanese manufactured binoculars,
believed to be 12 power.
Observer number American manufactured binouclars, 35x7.
(3) Not applicable.
d. Time and date of sighting:
(1) Observer number 1 - 29 August 1966, 0300Z.
Observer number 2 1966, 0245Z.
f. I Identifying information on
(1) Observer numbe age 36;
Grover California; occupation Highway Engineer; high
school education and 3 years college. Mr had spent 4 years
in the Navy, 2 years of which was spent on an aircraft carrier, here
he came into daily contact with aircraft. It is the opinion of the
preparing officer that this person is completely reliable. He had no
pet theories on UFOs or professed pee oneollcs USorpiolebsc ally  Cype Oi an aucnorIey On Cle type of an authority on the
subject. He noticed an unfamiliar object in the sky and thought it his subject. He noticed an unfamiliar object in the sky hought it his
duty to report the per authorities and did so.
Observer number 2 - Mr Observer number 2 - Mr e 31
California; occupation Highway Engineer; high California; occupation ighway Engineer; high
school education. Mr school education. Mr stated that he was not very familiar with
aircraft and did not think that he could identify one type from another. aircraft and did not think that he could identify one type from another.
However, he did not believe the unident However, he did not believe the unidentified object he sighted to fied object he sighted be an an I

airplane but rather a weather balloon. He did not notify any government
or state official as he believed the unidentified object to be a weather
balloon. Both observers are employed together, and during the course of
normal conversation, the UFo was discussed. Mr (observer number 1)
stated during the interview that he had a friend who also saw the
unidentified object and asked the investigating officer if he would be interested
in talking to him. That is how the investigating officer came to interview
M
g. Weather and winds - Aloft conditions at time and place of sighting:
(1) Clear, dark and no clouds.
20,000 220/37k; 30,000 220/39k; 50,000 230/3 ;80,000 080/15k.
() None.
(4) 15 miles.
5) None.
(6) Not applicable.
(7) Not applicable.
Local newspapers carried a story on the reporting of an
unidentified flying object by numerous people in San Diego - Los Angeles
area on the 27 and 28 of August. he newspaper stated the object was
a weather balloon released from H man AFB, New Mexico.
i. N Not applicable.
j. Los Angeles Center stated that a large (45o ft dia.) experimental
balloon Project H-66-74 was launched from Holloman AFB, New Mexico on
26 August at 07 Holloman lost control of the balloon and it drifted to
Needles, California, where the SAGE Unit at Phoenix tracked it to Palmdale.
It then, went into an orbit in the vicinity of Taft, California. The
balloon was tracked in the above area for the 27 an 28 August, when it was
lost in the area of a thunderstorm.
k. Cy L. Asta, lst Lieutenant, USAF Lieutenant, USAI Flight Training,
4392d Aerospace 4392d Aerospace Su , SAC, Vai B, California 93437. California 93437.
Analysis by preparing Analysis by preparing officer: officer: Due to the existance of a large experimental the existance a large experimental
balloon in the vicinity of the sighted balloon in the vicinity of the sighted UFO and e description given by the description given by the
two observers which closely resembled that of the two observers which closely resembled that of th e balloon, it is the opinion balloon, it is the opinion
of the preparing officer that the object sighted was the large experimental
balloon that was launched from Holloman AFB, New Mexico on the 26 of August
at 0748Z.

T
. Not applicable.
FOR MMANDER
Lehf7. Sinabangh
ROBERT M. SINSABAUGH, Lt Colonel, USAF
Director of Operations
E
.1
ENERRAN
22

CARIBOU
TATOOSH ISLAND
HAVRE BURI
-GLASGOW WILLISTON INTERNATIONAL FALLS SAULTE STE. MARIE
YAKIMA GREAT FALLS
MISSOULA DULUTH
SALEM LEWISTON HELENA BISMARCK FARGO DULUTH MARQU
SYRACUSE BOSTON
DEUGENE ST. CLOUD ALBANY HARTFORD
BILLINGS
GREEN BAY BUFFALO
SHERIDAN BINGHAMTON NEW YORK
BURNS 1 LA CROSSE MUSKEGON WILLIAMSPORT
MEDFORD BOLSE RAPID CITY HURON FLIN
MADISON
MILWAUKEE MARRISBURG
POCATELLO LANDER CASPER TOLEDO PHILADELPHUA
SIOUX CITY AKRON PITTSBURGH
DES MOINES FORT WAYNE DAYTON GROVE) COLUMBUS
RED BLUFF ELKO MOLINE (SULPHUR WASHINGTON
CHEYE NORTH PLATTE
OMAHA OMAHA PEORIA| INDIANAPOLIS INDIANAPOLIS
RENO RENO CIT CINLINNATI CINLINNATI CHARLESTON QUANTIC
SACRAMENTO SACRAMENTO ELY ELY RICHMOND RICHMO
SPRINGFIELD NORFOLK NORFOLK
COLUMBIA ILLE LOUISVILLE ROANOKE ROANO
OAKLAND BISHOP GRAND JUNCTION GRAND DENVER GOODLAND EVANSVILLE EVA
TOPEKA LOUIS GREENSBORO
MILFORD RALEIGH RALEIGH
MERCED PUEBLO PUEBLO
FRESNO DODGE CITY WICHITA INOXVILLE POPE AFB
SPRINGFIELD VILLE BRAGC
VECAS VECAS ALAMOSA ALAMOSA
28 28 TULSA OOGA
ANTA MARIA RATON RATON GREENVILLE
SANDBERG 27 CKLAHOMA CITY CAMP CHAFFEE FORT SMITH MEMPHIS ATHENS
AMARILLO AMARILLO CHARLESTON
BURBANK BURBANK WINSLOW INSLOW A LBUQUERQUE
SANTA MONICA BIRMINGHAM
PRESCQTT LITTLE ROCK
SAN DIEGO
PHOENTX ROSWELL
YUMA ACKSON
ABILENE CKIONVILLE
TUCSON SHREVEPORT EGLIN AFB TALLAHASSEE
MOBILE (VALPARAISO)
EL PASO MIDLAND WACO
PENSACOLA
JAM.1,1957 EW ORLEANS
LEGEND BURRWOOD
WEATHER BUREAU PILOT BALLOON SAN ANTONIO CAPE CANAVERAL
WEATHER BUREAU PILOT BALLOON AND LAUGHLIN AFB GALVESTON
(DEL RIO)
RAWIN MLAMI
AIR FORCE PILOT BALLOON CORPUS CHRIS
AIR FORCE RAWIN AFB AIR FORCE BASE LAREDO
NAVY PILOT BALLOON KEY WEST
NAVY RAWIN WB-ARMY COOP' RAWIK BROWNSVILLE
B

DEPARTMENT OF THE AIR FORCE
HEADQUARTERS 4392D AEROSPACE SUPPORT GROUP (SAC)
VANDENBERG AIR FORCE BASE, CALIFORNIA, 93437
REPLY TO
ATTN OF: BDOB
SUBJECT: Unidentified Flying Objects (UFO) 16 AUG 1966
TO: AFSO (FTD)
Wright Patterson AFB, Ohio 45433
In accordance with AFR 200-2 as supplemented, the following Unidentified
Flying Object (uFo) Report is submitte your action.
a. Description of the object(s):
(1) Observer number 1 and 2 - round.
compared to the size of a 8
inch wall clock at a di
(3) Observer number l - white.
Observer number 2 - white with small red light at the
objects approximately same size as objects.
(6) Observer number l - appeared to be a round light like
large star, glowing and spinning.
(8) Observer number 1 and 2 - no sound heard. However, observers
were in automobile, statio with engine running, and only the driver's
(obserrer number 3) window slightly opened.
(9) Observer number 1 and 2 - both observers (9) Observer number 1 and 2 - both observers claimed familiarity claimed familiarity
with airplanes, helicopters, blimps, and missiles, both stated the with airplanes, helicopters, blimps, and missiles, both stated the
sighted objects did not sighted objects did not any of these common air vehicles. common air vehicles.
b. I b. Description of - object(s):
Peace....is our Profession

(1) Observer number l was in right front seat of automobile in
motion over rough dirt ravine access road at approximately lo MPH when
she observed objects ahead, above and slightly to the right. Immediately
brought the objects to the attention of observers number 2 and 3.
degrees to the right automobile's line of motion.
(3)Approximately
degrees to the left f motion.
(4) Observer number 1 - objects moved i from right to left in
straight line and then turned slightly to just before disappearing
out of line of vision. Immediately after out of line of vision. Immediately after sllgnt Ielt t n, the lead
object changed shape from spherical to vertical object changed shape from spherical to vertical ellipitical and objects and objects
appeared to appeared accelerate. elerate.
Observer number 2 - confirmed above observations and further
stated that when lead object changed shape, the small stated that when lead object changed shape, the small red light associated
with the lead object was no longer visible. Observe number 2 observed
entire visible flight of object through binoculars. entire visible flight object through binoculars.
(5) Observer number. 1 and 2 - objects disappeared over ridge of objects disappeared over ridge of
canyon to the north, northeast.
(6) Observer number l - one minute.
Observer number 2 - twenty seconds.
c. Manner of Observation:
1) Group - visual.
(2) J Japanese manufactured binoculars. Constellation 8x30 ZCF.
(3) Not applicable.
d. Time and date of sighting:
1) 03/04302.
(2) (2) Night (no moon). Night (no moon).
e. e. Location of observers: Location of observers:
(1) Longitude 120 49' W, Latitude 350 16' N, 4 nautical miles
from San Luis Obispo VORTAC on 255 degrees rac on 255 degrees radial. 1964 Ford Thunderbird
hardtop was proceeding east along Isly Creek n Sly Creek Road. Road is
in canyon with steep brush co in canyon with steep brush vered hills on both sides. Hills exceed
1000 feet MSL in elevation.
f. Identifying information on observer(s):
2
..

111
I,
, , 1 1

California; occupati ian; Catholic; married (husband cares for
patients at Atascadero State Hospital); high school education. Familiar
with aircraft appearances and nds from observation. She has never
flowm in aircraft or travele ensively. Was non-commental on belief
or disbeliefs concerning existe Flying Saucers. The observer does
not drink intoxicating beverages is under the care of a
physician. It is the opinion of preparing officer that this person
is completely reliable. She displayed no indications of being the
hysterical or nervous type of individual, and did see objects that she could
not identify as being something within her depth of technical knowledge
and experience.
e
Drive, San Luis Obispo, California; occupation Bookkeeper; Catholic; married;
high school education. Familiar with aircraft appearances and sounds from
observation. She has never flown in aircraft or traveled extensively.
Stated that the first thing that came to her mind was Flying Saucers. She
further stated she had observed many photos of Flying Saucers in news
medias, and had read considerable literature on the subject. Also that she
recently vieweda Los Angeles) when a Flying
This person admits believing in Flying Saucers and that their source is
questionable because of conviction concerning manned air
platforms from a foreig country This conviction conceivably
confuse the mental pic logic analysis of any observation that is not
immediately recognizable her depth of knowledge. The observer
vous type and very talkative which leads the
preparing officer t obelieve she could have directly influenced the other
two observers into believing her theories at the time of the sighting.
Particularly since she as the only observer who had access to binoculars.
She had not reported her observations to any civil or military authorities.
She had mentioned the incident to a friend who telephoned the information
to the wife of a Vandenberg AB officer who in turn reported it to the
military authorities at Vandenbe rg AFB, California.
(3) Observer number 3 - Husband of Mrs age
rive, San Luis Obispo, California; occupation Auto Parts s Obispo, California; occupation Auto Parts
Sales Clerk; Catholic; high school e sales rk; Catholic; high school e education. Not available for comments education. Not available e for comments
on observetion. However, Mrs. However, Mrs stated her husband was a skeptic stated her husband was a skeptic
concerning Flying Saucers and felt there was a logical explanation of what explanation of what
they had observed.
() Not applicable. () Not applicable.
g. Weather and Winds - Aloft conditions at time and Place of
sightings: sightings:
3

(1) Clear, dark night and no moon.
20000 270/2K; 30000 200/35 K; 50000 180/10K; 80000 090/35K.
(3) Estimated 400 foot ceiling in area.
)Five (5) miles in fog. Wind 320/6K.. -
(5) Overcast, surface temperature 56°F and Dew Point 53oF.
(6) Not applicable. /
(7) Not available.
h. Contact by the preparing officer with local airports, Sheriff's
Office, Highway Patrol, Cit lice, and Fir Department concerning any
unusual occurrence in the area during the sighting period resulted in
negative reports. The Sheriff's Office did remember hearing a low flying
aircraft circling San Luis Obispo shortly after dusk. This confirmed
observer number 2's comment that they had witnessed a low flying aircraft as they
neared San Luis Obispo shortly after the sighting.
Analysis by prepari: officer: During this season of the year, it
is customary for fog along the coastal regions with low thin
layer of stratus clouds extending inlan approximately eight to ten
miles. Whe aircraft is observe flying near or in a
thin stratus cloud layer or in an obscured fo condition, any visible
aircraft light will tend to diffuse and take on opearance of a bright
area of light. It is the opinion of the preparing officer that the
object(s) cbserved was an aircraft with wing lights or object(s) coserved was an aircraft with wing lights on to oheck eloud to check olaud
condition or give position to aircraft or airport i condition or give position to aircraft or airport in the n the area, flying e area, flying a
slightly above a thin stratus cloud layer, and was th slightly above a thin stratus cloud layer, and was the same aircraft same aircraft
reported by the Sheriff's Office as having been heard circling the city at reported by th e Sheriff's Office as having been heard circling the city at
low altitude. Because of the angle from which the objects were observed, low altitude. Because of the angle from which t e objects were observed,
it is possible that the reported red lights could have been the left red it is possible that the r ights could have been the left red
navigation light and th navigation light and the anti-collision light. lision light. A temporary partial break temporary partial break
away from the cloud condition could explain the change in shape of one of away from the cloud condition co d explain the change in shape of one of
the objects. The lack of any reported sound could be attributed to the the objects. The lack of any reported sound could be attributed to the
observers being in an enclosed automobile with the motor and heater running,
u

the excitement on the part of the observers, and the apparent continious
exchange of verbal comments.
1. Not applicable.
FOR COMMANDER
7.finus
ROBERT M. SINSABAUGH, Lt Colonel, USAF Copy To:
Director of Operations 1Strat Aerosp Div (Do)
/
25

PROJECT 10073 RECORD
1. DATE · TIME GROUP .LOCATION
28 August 66 29/02452 San Luis Obispo, Califomia (2 Witnesses)
3. MOUNCE 10. CONCLUSION
Civilian BALLOON
2=t
4. NUMBER OF OBJECTS
One
5. LENGTH OF OBSERVATION UMMARY AND ANALYSIS
20 - 30 Minutes Two different obscrvers reported seeing an unusual object in
6. TYPE OF OBSERVATION the vicinity of San Luis Obispo, Calif. Object was compared
with a large weather balloon by one observer. The object was
Ground-Visual (BX) reported to be round in shape and being amber and silver in
7. COURSE . color, depending or the observer. Both observers just happened
to look up and noticud a starlike object in the sky at a time
ENE when no stars wouli have been visible.
8. PHOTOS A 450 ft experimental balloon, Project No H-66-74 was launched
from Hollomaun AFB, N M on ugust 2666. The balloon was
n Yes tracked to Taft, Calif., were it ,was lost in the area of a
XXNo thunderstorm. Taft, Calif., i approximately 50 miles from
9. PHYSICAL EVIDENCE San Luis Obispo, Calif.
07 Yes
XNo
FORM
FTD SEP 63 0-329 (TDE)
is 7 1
26 +
A1
A*

DEPARTMENT OF THE AIR FORCE
HEADQUARTERS 4392D AEROSPACE SUPPORT GROUP (SAC)
VANDENBERG AIR FORCE BASE, CALIFORNIA, 93437
REPLY TO
ATTN OF: BDOB
SUBJECT: Unidentified Flying Objects (UFO) 13 SEP 1966
TO: AFSC (FTD)
Wright Patterson AFB, Ohio 45433
In accordance with AFR 200-2, as supplemented, the following Unidentified
Flying Object (uFo) Report is submitted for your action.
a. Description of the object:
(1) (1) Observer number 1 - rounded Observer number 1 - rounded triangular. triangular.
Observer number Observer number 2 - round. 2- round.
(2) (2) Observer Observer number number 1 - compared to the size of a pin head held - compared to the size of a pin head held
at arms length. length.
Observer number Observer number size of a a baseball held
at arms length. length.
(3) Observer number 1 - bright amber. 1 - bright amber.
Observer number 2 - silver. 2 - silver
(4)
(5) Not Applicable.
(6)
spots on the surface.
Observer number 2 - appeared to be a large plastic balloon
and 2- tail, trail, or exhaust observed. KI M
7) Observers 1
(8) Observers 1 and no sound was heard, both observers were
out of doors.
(9) Observers 1 and 2 - both observers claimed familiarity with
aircraft, both stated that the object did not resemble an airplane. aiurasoy boot
b. b. Description of course of object: Description of course of object:
(1) Observers 1 and 2 - both stated that they just happened to and 2 - both stated that they just happened to
look up and noticed a starlike object in the object : in the sky at a time when no stars
would have been visible. would have been visible.
number 1 - 15 number 1 15 degrees elevation and due east. degrees elevation and due east..
P eac Profession