28940577.pdf

PROJECT 10972 RECORD CARD

|  DATE | LOCATION  |
| --- | --- |
|  13 Feb 62 | CRANEY CITY, ILLINOIS  |
|  DATE-TIME AIR NO. | TYPE OF OBSERVATION  |
|  13/1230 (CT) | ☐ Open Air  |
|  13/0630 (CT) | ☐ Air Vessel  |
|  LOCATION | ☐ Subsidy  |
|  LOCATION | ☐ Military Personnel  |
|  LOCATION OF OBSERVATION | NUMBER OF SHEETS  |
|  1. AIR | 6  |
|  2. AIR | 6  |

## 4. SALES SUMMARY OF SIGHTING
Target appeared on radar scopes of a/s and ground radar unit to being a normal a/s plotting traveling at a high rate of speed.

## 5. COMMENTS
1. G.D. RADAR
2. RADAR MALFUNCTION
3. AIR INTERSECTOR RADAR
4…

SECRET
5 Pcs
UNCLASSIFIED

Bsc ltr fr 3903D Radar Bomb Scoring Group, Subject: Report of Incident, 353.41

DICT (353.4 19 Feb 52) 1st Ind

HEADQUARTERS STRATEGIC AIR COMMAND, Offutt Air Force Base, Omaha, Nebraska 3 APR 1959

TO: Chief, Air Technical Intelligence Center, Wright-Patterson Air Force Base, Dayton, Ohio

The basic communication concerning sighting of an unconventional airborne object is forwarded as an item of interest to the Air Technical Intelligence Center.

FOR THE COMMANDING GENERAL:

James H. Walsh
Colonel, USAF
Director of Intelligence

4543

15 Feb 52
T12

DOWNGRADED AT 3 …

UNCLASSIFIED
SECRET
By Authority of the Commanding
OFFICE OF AIR FORCE
12 Feb 1952
HEADQUARTERS
3903D RADAR BOMB SCORING GROUP
Carswell Air Force Base, Fort Worth, Texas
S3 353.41
19 February 1952
SUBJECT: Report of Incident
4543
TO: Commanding General
Strategic Air Command
Offutt Air Force Base
Nebraska

1. The following are the known facts concerning an unidentified "target" tracked by Detachment 4, 3903d RBS Group, stationed at Granite City Engineer Depot, Granite City, Illinois on the night of 13 February 1952 during the evaluation mission time scheduled for the 97th Bombardment Wing.

a. …

UNCLASSIFIED
S3 353.41
SUBJECT: Report of Incident (19 Feb 52)

equipment "settled", the "target" had continued its descent and was then initially plotted at a horizontal range of about five (5) miles west of the site.

g. The "target" was recorded in the expanded scale of the plotting equipment to the maximum range possible for one setting of the controls, during which time the horizontal ground tracks measured succeeding speeds during five second intervals of 924, 888, 840, 804, and 744 miles per hour.

h. During the twenty-five seconds that the "target" was plotted in expanded scale setting…

UNCLASSIFIED
SECRET

(Uncl) Unidentified Radar Returns

ATLAP-2
ATLAP-5
27 May 1953
Attn: Mr. James
Lt. R. B. Olsson/jcs
65365/D2634/PA30

1. Enclosed are two sightings of unidentified aerial objects which Project Blue Book requests you review for a possible explanation.

2. The first, 13 Feb 52, Granite City, Illinois, concerns a seemingly conventional target painted by an automatic tracking device which eventually reaches the unconventional speed of 1000 mph. In this instance there is some confusion on whether the target was picked up by air radar or not. Weather information to determine the…

UNCLASSIFIED
SECRET

SUBJECT: (U) Unidentified Radar Returns (27 May 1953)

THRU ATIAE FROM ATIAE-2 DATE 3 June 53 COMMENT NO. 2
TO ATIAE-5 Mr. James/leg
65364/Bldg 263A

1. The incident reported as happening at Granite City, Illinois, 13 Feb 52, cannot
be firmly evaluated. However, since the target appeared to be normal until the radar
tracking equipment was switched to an expanded scale for a 25 second period, it appears
very likely that there was some malfunctioning of the radar; although the report states
that immediate checks of the RSS equipment determined that the radar tracker was
oper…

UNCLASSIFIED
EXTRACT FROM STATUS REPORT # 6

DATE: 13 Feb 52
TIME (Local): Unknown
LOCATION: Granito City, Ill.
LENGTH OF TIME OBSERVED: Unknown
SOUND: Unknown
SPEED: High - up to 1090 MPH
ALTITUDE: 30,000'
HEADING: Varied
SOURCE: Radar Crew
ACTION OR COMMENTS: Pending
DESCRIPTION OF INCIDENT: Radar Bomb Scoring Group observed unusual radar returns while attempting to score bomb run. (Secret)

UNCLASSIFIED

DOWNGRADED AT 3 YEAR
DECLASSIFIED AFTER 12
DOD DIR 5200.10

UNCLASSIFIED

UNCLASSIFIED
EXTRACT FROM STATUS REPORT # 7

DATE: 18 Feb 52
TIME (Local): Not Reported
LOCATION: Granite City, Ill.
LENGTH OF TIME OBSERVED: Not Reported
SOUND: Unknown
SPEED: High up to 1,090 mph
ALTITUDE: 30,000'
HEADING: Varied
SOURCE: Radar Crew
ACTION OR COMMENTS: Checked with Electronics Branch, ATIC. No conclusions.
DESCRIPTION OF INCIDENT: Radar Bomb Scoring Group observed unusual radar returns while attempting to score bomb run. (Secret)

UNCLASSIFIED

DOWNGRADED AT 3 YEAR INTERVALS:
DECLASSIFIED AFTER 12 YEARS.
DOD DIR 5200.10

UNCLASSIFIED