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Case FileNARA NAID 28963692 · T1206 Roll 24

Project Blue Book Case File

Peoria, IllinoisSeptember 1955

Insufficient Data

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Peoria, Illinois in September 1955. The full case file (4 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 24.

Reported location

Peoria, Illinois

Date of incident

September 1955

State / country

IL / US

Page count

4 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 24

Original case file scans

Original case file · scanned by NARAPage 1 of 4
Transcribed text
. : PROJECT 10073 RECORD CARD : :

| [oare 2. LOCATION 12. CONCLUSIONS

: O Was Ball

: 18 Sep 55 Peoria, Illinois 0 Probably Balloon

" |3. DATE-TIME GROUP 4 TYPE OF OBSERVATION ep Gl

eb ¥ Ground-Visual O Ground-Radar e Prabally Aircraft |
i CEE 0 Ai Visuol O Air-Intercept Radar |O Possibly Aircraft
i 5. PHOTOS 1'8. SOURCE O Was Astronomical

FE O Yes 01 Probably Astronomical

i 3% Ne civilian 0 Possibly Astronomical

© | 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE (a3 1) 7 AEA ROR RE]

3 : Insufficient Dota for Evaluation

| | "few" seconds 1 SW to NE plo

© |10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS Cg

"|  |Long, narrow, no wings, similar to a circus Inconsistant data observed for rdw

*  |balloon, grey on one side, orange on other. seconds, speed 30-40 knots, passed over-

.  |Seemed to be rolling. No sound, steady alt, ead at 1,000 ft at steady pace.
I |appeared to rotate once during flt.

1 INSUFFICIENT DATA FOR EVALUATION

4

.

: ATIC FORM 329 (REV 26 SEP 52) Fae

-)
/ 4

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Source: National Archives Catalog · NAID 28963692

Connected across the archive

Programs and code names

Project Blue Book

Places

IllinoisPeoriaPeoria, IL

Agencies

United States Air Force

Dates

19551955-09-01

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