28929295.pdf

|  1. DATE - TIME GROUP | 2. LOCATION  |
| --- | --- |
|  30 Jun 47 | Boise, Idaho  |
|  3. SOURCE | 10. CONCLUSION  |
|  Civilian | Astro (SUN DOG)  |
|  4. NUMBER OF OBJECTS | One  |
|  5. LENGTH OF OBSERVATION | 11. BRIEF SUMMARY AND ANALYSIS  |
|  A few minutes | Observer sighted a half circle object which was stationary. It was bright & silvery and seemed to be clinging to a cloud.  |
|  6. TYPE OF OBSERVATION | Ground-Visual  |
|  7. COURSE | Stationary  |
|  8. PHOTOS | ☐ Yes ☑ No  |
|  9. PHYSICAL EVIDENCE | ☐ Yes ☑ No  |

FORM
FTD SEP 63 0-329 (TDE) Previous editions of this form may …

CHECK-LIST - UNIDENTIFIED FLYING OBJECTS

1. Date 30 June 1947 Incident #25
2. Time 5:45 PM approximately
3. Location Boise, Idaho
4. Name of observer
5. Occupation of observer Not stated
6. Address of observer Street, Boise, Idaho
7. Place of observation Boise, Idaho traveling west to Plantation Golf Course
8. Number of objects 1
9. Distance of object from observer 10 miles
10. Time in sight Few minutes
11. Altitude 3,000 feet
12. Speed Stationary
13. Direction of flight Stationary
14. Tactics None
15. Sound Not stated
16. Size Not stated
17. Color Bright and silvery
18. Shape Half circled
19…

As object was seen in this locality in 30 June 1942. The hour was approximately 3:45 PM and we lay safe and 1) were traveling west to the Plantation Gulf Course, which is approximately five miles from Boise. On the way, I happened to spot something in the sky which seemed to be clinging to a huge cloud. It was half misused in shape and just as bright and silvery looking as a mirror caught in the rays of the sun. After a few minutes of traveling and looking the object disappeared. I would say it was about 10 miles distant, and from our location, approximately 3,000 feet in the air.

Note: Filme…

Incident #23 -- Boise, Idaho -- 30 June 1947

It seems exceedingly probable that the object observed in this incident was a combination sun-cloud effect. The altitude of the sun was 30°, azimuth 280°. At that time of the afternoon, the sun's position was such that it could easily have illuminated a background cloud which was perhaps almost entirely covered by a foreground cloud. (Boise weather reports indicate an entirely clear sky, but the report of the incident itself states that the object "seemed to be clinging to a huge cloud.") This investigator himself has observed such effects.

HEADQUARTERS
AIR MATERIEL COMMAND
Wright-Patterson Air Force Base
Dayton, Ohio

MCIAXO-3/MWS/rm
Jan 5 1949

MCIAXO

SUBJECT: Project "SIGN"

TO: Chief, Air Weather Service,
Andrews Air Force Base,
Washington 25, D. C.
ATTN: DSS

1. Project "SIGN" is responsible for the collection, investigation and interpretation of data relative to sighting of unidentified flying objects. Attached Incident Summaries 1 thru 172 from the files of Project "SIGN" are forwarded for study and recommendations as to which of the incidents may be eliminated as balloons released on routine synoptic ascents by the Air W…

Hq AMC, Chief, Air Weather Service, Washington 25, D. C.
Subj: Project "SIGN"

4. The form used in interrogating witnesses to sightings is inclosed as a matter of interest. Comment as to possible improvement of the "Essential Elements of Information" in regard to routine synoptic balloon flights is invited.

5. It is requested that correspondence be forwarded to the Commanding General, Headquarters, Air Materiel Command, attention MCIAXO-3.

FOR THE COMMANDING GENERAL:

/s/ W. R. Clingerman, Col, USAF
for H. M. McCOY
Colonel, USAF
Chief, Intelligence Dept

2 Incls:
Summaries 1-172 incl
"EEI"

…

Dr HYNEK'S EVALUATIONS EXTRACTED FROM PROJECT GRUDGE REPORT.

INCIDENT INDEX

1. Astronomical

a. High probability:
#26, 27, 30, 31, 32, 33, 34, 48, 49, 59, 60, 66, 69, 70, 94, 95, 96, 97, 98, 101, 102, 103, 104, 116, 119, 132, 136, 140, 147, 148, 158, 174, 184, 185, 187, 197, 203, 204, 208, 216, 219, 238.

b. Fair or low probability:
#19, 20, 21, 24, 28, 35, 36, 46, 50, 63, 67, 80, 82, 93, 100, 112, 120, 121, 129, 130, 144, 153, 165, 166, 167, 175, 192, 199, 202, 205, 220, 230, 240.

2. Non-astronomical but suggestive of other explanations

a. Balloons or ordinary aircraft:
#3, 11, 22, 41, 42…