28929892.pdf

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SECRET
UNCLASSIFIED
Incident #135

ATIC NO. ---

AF NO. ---

REPORT NO. ---

DATE OF REPORT ---

TIME OF RECEIVING 2130 EST

SHAPE --- Elliptical

SIZE --- 100' plus EST.

COURSE --- From NW to SW

NO. IN GROUP --- Approx. 12

MONDO --- None

PHOTOS --- SKETCHES --- yes

Temporary ATIC Form 329
(2 Jan 52)

UNCLASSIFIED

|  DURATION | Rapid City AFB, Weaver, S.D.  |
| --- | --- |
|  SOURCE | USAF Intell, Off.  |
|  DATE IN TO ATIC | ---  |
|  COLOR | Yellowish-white brilliant  |
|  SPEED | 500 mph plus Measured  |
|  ALTITUDE | 10,000' to approx 6,000' M assured  |
|  LENGTH OF TIME OBSERVED …

With 104 incidents thus eliminated, there remain thirty-four
which contain some evidence but have no apparent ready explanation.
This statement is true only under the assumption that the evidence is
accepted as reliable and accurate. When psychological and physio-
logical factors are taken into consideration, all of these incidents
can be explained rationally, as pointed out by Rand Corporation and
Dr. Fitts of Air Materiel Command Aero-Medical Laboratory (see Appendix
A12 and "C").

Air Materiel Command Aero-Medical Laboratory (Dr. Paul
212 Incidents considered)

There are sufficient psycholo…

Incident No. 135 -- Between 15 and 20 August 1947, 2130 Hours, Weaver, South Dakota.

An Air Force Officer saw twelve "flying discs" four miles away over the Rapid City Air Force Base in a tight diamond formation at 0000 to 10,000 feet descending to 6000 feet at 500 MPH. Objects made a formation turn and climbed at 30° to 40° accelerating. Objects were very maneuverable, remaining equally spaced in all maneuvers. Each object was 100 feet in length, oval-shaped and brilliant yellowish-white. No sound nor exhaust trail were heard or seen.

AMC Opinion: This reporter should be a reliable observer…

UNCLASSIFIED

Incident #135 -- Weaver, South Dakota -- between 15-20 August 1947

For the description of this incident as given, there is no astronomical explanation.

The statements of an apparently well-trained observer can scarcely be doubted, but no interpretation, either astronomical or otherwise, other than possible detached auroral streamers, suggests itself. The moon at the time was new and the night apparently very dark, the most favorable conditions for the observation of auroral phenomena.

UNCLASSIFIED

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, 23, 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…