Palmdale, Calif, September 1955September 1955

Insufficient Data

Summary

On September 13, 1955, at 1:01 a.m. near Palmdale, California, a civilian witnessed an object with a flat top and bottom with rounded ends. The object had a diameter equal to a silver dollar and a height one-quarter that width. It produced a constant deep undertone sound similar to a diesel roar with an overtone like a loud road similar to an afterburner roar. The object moved very slowly in a southwest direction, made a left climbing turn, and was observed for 10 to 15 minutes. The witness reported one object sighted from the ground. The Air Force concluded the sighting was a possible test vehicle.

Reported location

Palmdale, Calif, September 1955

Date of incident

September 1955

State / country

? / XX

Page count

3 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 24

Original case file scans

Original case file · scanned by NARAPage 1 of 3

View transcribed text

PROJECT 10273 RECORD CARD

1. DATE
13 SEP 55

3. DATE-TIME GROUP
Local
GMT 13/10102

5. PHOTOS
OYes
ONo

7. LENGTH OF OBSERVATION
10 - 15 min

10. BRIEF SUMMARY OF SIGHTING
Top & bottom flat, ends rounded, exhaust seen from rear of obj, equal to width of obj, constant sound, a deep undertone similar to diesel roar w/overtone of loud roar similar to afterburner. Obj moved very slow.

2. LOCATION
Palmdale, Calif

4. TYPE OF OBSERVATION
[X] Ground-Visual  O Ground-Radar
O Air-Visual       O Air-Intercept Radar

6. SOURCE
civilian

8. NUMBER OF OBJECTS
1

9. COURSE
W-SE-S

12. CONCLUSIONS
O Was Balloon
O Probably Balloon
O Possibly Balloon
O Was Aircraft
O Probably Aircraft
[X]c Possibly Aircraft
O Was Astronomical
O Probably Astronomical
O Possibly Astronomical
O Insufficient Data for Evaluation
O Unknown

11. COMMENTS
Possible test vehicle.

ATIC FORM 329 (REV 16 SEP 52)

/ 3

Use ← → keys to navigate · scans hosted by the U.S. National Archives

Source: National Archives Catalog · NAID 28963660