28950580.pdf

ATIC FORM 329 (REV 26 SEP 52)

|  DATE | LOCATION | 12. CONCLUDE  |
| --- | --- | --- |
|  0 | Chicago, Illinois | ☐ Gas Bahasa ☐ Probably Balloon ☐ Possibly Balloon  |
|  3. DATE-TIME GROUP | 4. TYPE OF OBSERVATION |   |
|  ☐ Local ☐ 3000 ☐ Group-Vessel ☑ Ground-Radar ☐ Air-Vessel ☐ Air-Intercept Radar |  | ☐ Gas Aircraft ☐ Probably Aircraft ☐ Possibly Aircraft  |
|  5. PHOTOS | 6. SOURCE | ☐ Gas Astronautical ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  ☐ No ☐ Radar 30A |  |   |
|  7. LENGTH OF OBSERVATION | 8. NUMBER OF OBJECTS | 9. COURSE  |
|  3 Hours 30 Multiple |  | ☐ Other ☐ I…

CLASSIFICATION: ☐
HQ: 755TH AC&W SQUADRON
E: 4TH: 30TH AD (DEF)
DA: 4 SEPTEMBER 1952
OFFICIAL

AF FORM 112—PART I
APPROVED 1 JUNE 1940

|  COUNTRY: U.S.A. | REPORT NO. | LEGAL'S BEARING: G  |
| --- | --- | --- |

# AIR INTELLIGENCE INFORMATION REPORT

**SUBJECT:** Report of Unusual Flying Objects

**AREA REPORTED BY:** Northwest Illinois

**FROM (Agency):** 755th AG & W Squadron, Williams Bay, Wisc.

**DATE OF REPORT:** 4 September 1952

**DATE OF INFORMATION:** 2 September 1952

**LOCATION:** C-3

**PREPARED BY (Name & Address):** Capt. Frank J. Radznikinas

**SOURCE:** Supervisor…

PROJECT 10073 WORKSHEET
I. GENERAL

|  1. DATE | 2. LOCATION | 3. TIME  |
| --- | --- | --- |
|  2 Sept 52 | Chicago, Ill. | Local: 03000057 Zebra: 0200  |
|  4. WAS OBJECT OBSERVED FROM THE GROUND? | ☐ Yes ☐ Naked Eye ☐ Binoculars ☐ Telescope ☐ Theodolite | ☑ No  |
|  5. WAS OBJECT OBSERVED BY GROUND RADAR? | ☑ Yes ☐ By One Set ☐ By Two Sets ☐ By Three Sets | ☐ No  |
|  6. WAS OBJECT OBSERVED FROM THE AIR? | ☐ Yes ☐ A/C Observed Object ☐ Interception Attempted ☐ No Intercept Attempted | ☑ No  |
|  7. WERE AIRCRAFT SCRAMBLED TO INTERCEPT? | ☑ Yes ☐ 2 A/C Scrambled ☐ Visual Contact Made ☐ A/I C…

IV. BALLOON DATA

21. WERE BALLOONS RELEASED IN AREA? ☐ Yes ☑ No
22. TIME SINCE SCHEDULED BALLOON RELEASE: 0 Minutes

23. POSSIBLE BALLOON LAUNCH SITES DOWNWIND OF SIGHTING:

|  Location | Type | Launching Agency | Lighted? |   | Describe Lighting  |
| --- | --- | --- | --- | --- | --- |
|   |  |  | Yes | No |   |
|  a. | Madison | Patall | USDA West | P |   |
|  b. | Milwaukee | “ | “ |  |   |
|  c. |  |  |  |  |   |
|  d. |  |  |  |  |   |

(attach overlay)

V. EVALUATION

21. EVALUATION OF SOURCE:
☑ Excellent
☐ Good
☐ Fair
☐ Poor
☐ Unreliable
☐ Extremely Doubtful
☐ Hoax

22. DETAILS OF REPO…

EJECT 10073 WEATHER DATA SHEET

|  1. DATE OF OBSERVATION | 2. TIME OF OBSERVATION | 3. STATION OBSERVING  |
| --- | --- | --- |
|  1 Sept 52 |  |   |
|  4. WINDS ALOFT: | ALTITUDE (feet) | VELOCITY (knots) | DIRECTION (degrees) | ALTITUDE (feet) | VELOCITY (knots) | DIRECTION (degrees)  |
| --- | --- | --- | --- | --- | --- | --- |
|  0 |  |  |  | 25,000 |  |   |
|  1,000 |  |  |  | 30,000 |  |   |
|  2,000 |  |  |  | 35,000 |  |   |
|  3,000 | 10 | → 270 |  | 40,000 |  |   |
|  4,000 |  |  |  | 45,000 |  |   |
|  5,000 |  | 2 |  | 50,000 |  |   |
|  6,000 | 15 | 320 |  | 55,000 |  |   |
|  7…

HEADQUARTERS
4708TH DEFENSE WING
O'MARE INTERNATIONAL AIRPORT
Park Ridge, Illinois

17 SEP 1952

Intel 350.07

SUBJECT: Transmittal of Civil Aeronautics Report

TO: Commanding Officer
Air Technical Intelligence Center
Wright Patterson Air Force Base
Dayton, Ohio

Transmitted herewith is 1 copy, in duplicate, of Civil Aeronautics Report referred to in our message cite Intel 12137 dated 11 Sept 1952 in regard to Operation Blue Book.

FOR THE COMMANDING OFFICER:

04957

1 Incl
Civil Aeronautics Report
5 Sept 1952 (in dup)

Jack E. Fox
Capt. USAF
Air Adjutant General

SUBJECT: Report of Unusual Radar Indications

FROM: Chicago (Midway) Airport Traffic Control Tower

TO: Chief, Airways Operations Division, 3-545
Attention: Chief, Facility Operations Branch, 3-547

Quoted below is a report of unusual radar indications observed by controllers of this facility on duty from midnight to 0200c, September 2, 1952. This report and a brief summary of existing weather is passed on for informational purposes, with the thought in mind of providing data to assist in the determination of probable causes of the phenomena.

"Shortly after midnight on the morning of Septembe…

Report of Unusual Radar Indications (cont'd)

A similar condition, but not as intense, was observed during the early morning hours of September 3. The noise level was moderate as on September 2, but fewer moving, well-defined targets were visible and of shorter duration. An attempt was made to photograph the ASR scope at this time also."

Personnel on duty on September 2 were: Robert L. Terneuse, Ralph L. Frick, Dale E. Werner, and Warren J. Weber. Gordon R. Copeland was the Radar Maintenance Technician on duty.

Weather during this period was as follows:

050c - 10,000 broken, visibility 15 m…