PROJECT BLUE BOOK

PROJECT 10073 RECORD CARD

1. DATE ’ 2. LOCATION eH) 12. CONCLUSIONS
® Wes Balloon
29 May 51 Spokand, Washington wash agp pe
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION ae ee
oe. ad 2 Ground- Vi sual O Ground-Rador = Probebiy Alves aie
omt 22/1 7182 | 0 Air Visual © Air-iIntercept Radar O Possibly Aircroft
5. PHOTOS a 6. SOURCE 2 0 Was Astronomicol
0 Yes 0D Probably Astronomical
%5 No Military 0 Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE © Other...
1 | Sk Risin 9 + ne gaan Dota for Evaluation
4, min plus sing
10. BRIEF SUMMARY OF SIGHTING 111. COMMENTS
Elliptical object. Flat in appearance, Light | Winds fromWNW at 6,000 ft plus. Object
tan color. No noise or exhaust, Moved over moving with wind and rising. Object

observer location from WNW slowly at estimated sighted from TC a/c at 0943 40 mi
altitude of 2500 to 3000 ft. In wallowing S¥ of Spokane Wash. Described as
manner, Hovered and disappeared rising circular and glistening. Case evaluated
rapdily at 60 deg angle. Disappeared from as balloon sighting.

sight in approximate 20 sec after object

started to ascend,

ATIC FORM 329 (REV 26 SEP 52)

116TH FIGHTER-DVIERCEPTOR SQUADRON
Geiger Field DF as
Spokane, Washington

GFG 319.1 Sl May 1951

SUBJECT: Report of Information on Unconventional Aircraft

TOs Commanding General
Air Materiel Command
ATIN: MCIS
Wright-Patterson Air Force Base
Dayton, Ohio

—= <——

l. In accordance with the provisions of paragraphs 4 and 5,
Air Defense Command Letter 200-1, dated 11 April 1951, subject as
above, the following report of an unconventional aircraft or object,
which was sighted over this field, is forwarded for your information:

&e Description- The object was elliptical and flat in appearance,
similar to a large sheet of paper or a thin aircraft wing. It was light
sun tan color. No noise nor visible cxhaust were presente The object
moved over the field from the iil! slowly,at approximately 2500-S000 ft
above the surface (estimated), in a wallowing manner, It hovered over
the field and then ascended rapidly out of sight at ; sires a a a 60

degree angle. <

be. The object was sighted at approximately O916P,° # May Peay
Duration of sight, approximately 4 minutes. It disappeared from.
in approximately 20 seconds after it started to ascend.

Cc. The object was sighted with the naked eye by observers on
the ground, No aircraft was in the air over the field at the time, nor
were radar observations attempted.

ad. Source of information is reliable and authentic, 2 officers
(pilots) and 2 airmen reported seeing the object.

6, Weather conditions over the field at the time the object ~
vas sighted were: :
\
(1) Surface observation Geiger Field, US Weather Bureau ~%
0930P GEG - -150030 220/50/251,/01/300=0500 \ ‘x
Fes EE

, GRADZD AT 3 YY in
DO ECLA SSIPIED Abia. zt igh RS. \
DOD Dik 5200, w\

UNCLASSIF IED

UNCLASSIF IED

GFG 319.1 Subject: Report of Information on Unconventional Aircraft
(2) Winds aloft, Geiger Field, US ea Bur 1600Z (0800P)

2000 ft 180/05 9000 ft 300/02
3000 ft 210/06 10000 ft 320/03
4000 ft 230/08 12000 ft 3520/03
5000 ft 260/10 14000 ft 320/08
6000 ft 290/09 16000 ft 340/02
7000 ft 300/05 18000 ft 290/13
8000 ft 300/02 20000 ft 20/35

2e In the opinion of the station weather officer, neither the
convective activity nor the synoptic situation over the area could
likely have caused a large piece of paper to float in the air and
ascend at time of incident. Towering cumlus clouds were observed to
the N and NE over the mountains, but there were no clouds directly
over the field at the time of incident.

Se Shortly thereafter, at approximately 0945P, a passenger in
a T-6 aircraft approximately 40 wiles SV of Geiger Field enroute to
Larson AFB at approximately 3500 ft above the surface, sighted an
object high in the sky to the SE of the aircraft. The odject was
reported to be circular and had a glistening appearance, Duration
of sight=- approximately 20 seconds.

FOR THE COLIMANDING OFFICER:

wa >
Mues Mi ROBINS
Captain USAF
Adjutant
2
DOWNGRADED AT 3 YEAR INTE

rR

VALS;

DECLASS SIFLED Ak ik 12 YEARS.

Dov DIR 5200.10

WNCLASSIF ED.