28939335.pdf

|  1. DATE | 2. LOCATION | 12. CONCLUSIONS  |
| --- | --- | --- |
|  30 July 1951 | Selfridge AFB, Mich | ☐ Was Balloon ☐ Probably Balloon ☐ Possibly Balloon  |
|  3. DATE-TIME GROUP Local Bet 1114Z & 1132Z GMT 1114Z | 4. TYPE OF OBSERVATION ☐ Ground-Visual ☑ Ground-Radar ☐ Air-Visual ☐ Air-Intercept Radar | ☐ Was Aircraft ☐ Probably Aircraft ☐ Possibly Aircraft  |
|  5. PHOTOS ☐ Yes ☑ No | 6. SOURCE Radar Observers | ☐ Was Astronomical ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  7. LENGTH OF OBSERVATION 18 minutes | 8. NUMBER OF OBJECTS 1 | 9. COURSE ☐ Other Anomalous Pro/ ☐ Insuffi…

UNCLASSIFIED
AF FORM 112 - PART I
APPROVED 1 JUNE 1948
Classification
Classified 10-4
Auth: CG, 30th AirB
3 Aug 51; Initials JMB

|  COUNTRY | U.S.A.  |
| --- | --- |
|  REPORT NO. | RIUA 1-51 30AD  |
|  LEAVE BLANK | 90  |

# AIR INTELLIGENCE INFORMATION REPORT

## SUBJECT
Information on Unconventional Aircraft

## AREA SCHEDULED ON
Wisconsin- Illinois

## FROM (Agency)
30th Air Division (Def) Selfridge AFB, Mich.

## DATE OF REPORT
3 August 1951

## DATE OF INFORMATION
30 July 1951

## ENLISTED
R-3

## PREPARED BY (Agency)
1st Lt., Robert K. Hall, Dir of Intell

## SOURCE
30th Air Division p…

UNCLASSIFIED
AF FORM 112—PART II
AF FORM 111 REPORTING COMPANY, U.S.A.
AIR INTELLIGENCE INFORMATION REPORT

|  30th Air Division (Defense) | RIUA 1-51 30 AD  |
| --- | --- |
|  Selfridge AFB, Mich. | PAGE 2 OF 3 PAGES  |

1. An unconventional unidentified "object" was observed electronically by radar observers at the 752d AC&W Squadron, Empire, Mich., between 1114Z and 1132Z, 30 July 51.

2. One officer and four airmen radar operators, with technical experience varying from two to nine months, saw an oblong shaped blip with the conventional tail caused ordinarily by the tapering off of tar…

UNCLASSIFIED
SECRET
AF FORM 512—PART II
(UNCLASSIFIED)
AIR INTELLIGENCE INFORMATION REPORT

FROM: 30th Air Division (Defense) R1UA 1-51 30 AD
Selfridge AFB, Mich. PAGE 3 OF 3 PAGES

(b) A transmitter at Elkhorn operating at the same frequency as a receiver at Empire. This is highly possible due to five different transmitters and receivers at each site capable of being tuned to same frequencies, and mutual interference is previously on record.

(c) The Pulse Repetition Frequency of the two radar sets at almost the same rate. (Elkhorn slightly faster.) This is probable because of identical sets …

AUGUST - SEPTEMBER 1951 SIGHTING

|  DATE | LOCATION | OPERATOR | EVALUATION  |
| --- | --- | --- | --- |
|  August |  |  |   |
|  Aug | Navosta, Texas |  | Insufficient Data  |
|  5 | Herkimer, New York |  | Astro (METEOR)  |
|  6 | Cleveland, Ohio |  | A/C  |
|  11 | Birmingham, Alabama | Multiple | Astro (METEOR)  |
|  12 | Corong, New Mexico (CALIFORNIA) | Military | Astro (METEOR)  |
|  12 | Indianapolis, Indiana | Multiple | Balloon  |
|  14 | Rhein Main AS, Germany | Military Air | Insufficient Data  |
|  19 | Alexandria, Virginia |  | A/C  |
|  20 | Spokane, Washington | Not reported |…