San Luis Obispo, CaliforniaNovember 1956

Unidentified

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from San Luis Obispo, California in November 1956. The full case file (2 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 26.

Reported location

San Luis Obispo, California

Date of incident

November 1956

State / country

CA / US

Page count

2 scanned pages

USAF evaluation

unidentified

Microfilm

T1206, Roll 26

Original case file scans

Original case file · scanned by NARAPage 1 of 2

Transcribed text

PROJECT 10073 RECORD CARD

1. DATE
1 November 1956

2. LOCATION
San Luis Obispo, California

3. DATE-TIME GROUP
Local
GMT 02/0007Z

4. TYPE OF OBSERVATION
Air-Ground-Visual
Air-Visual
Ground-Radar
Air-Intercept Radar

5. PHOTOS
Yes
No

6. SOURCE
Civilian

7. LENGTH OF OBSERVATION
five minutes

8. NUMBER OF OBJECTS
one

9. COURSE
southerly

12. CONCLUSIONS
Was Balloon
Probably Balloon
Possibly Balloon
Was Aircraft
Probably Aircraft
Possibly Aircraft
Was Astronomical
Probably Astronomical
Possibly Astronomical
Other
Insufficient Date for Evaluation
Unknown

10. BRIEF SUMMARY OF SIGHTING
One round silver object, size of a pea at arm's length. Object flew in southerly direction disappearing into fog. Object had not been observed for five minutes.

11. COMMENTS
Description, duration, and flight indicate that this sighting was probably caused by an aircraft.

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Source: National Archives Catalog · NAID 28968148

Connected across the archive

People

DONAL J BARNAS 1ST LT CMI SENIOR DIRECTOR DELTA CREW

Organizations

27TH ADIV DAF NORTON AFE CALIF 65STH ACHRON PORNUS CALIF AIR TECHNICAL INTELLIGENCE CENTER WRIGHT PATTERSON AFE OHIO

Programs and code names

Project Blue Book

Places

California San Luis Obispo San Luis Obispo, CA San Luis Obispo, California