38_143685_box_Incident_Summaries_173-233

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INCIDENT SUMMARY SHEET

Incident No. 217

1. Date and Time of Observation: 9 Dec 48 at 15:20 (Zonal by 24 hr clock)

2. Where Sighted: 8 to 12 miles SE of Pittsburgh on heading of 300°

3. Observer's Position: Air on a heading of 300° (i. e., ground, air, control tower, etc.)

4. Name and Address of Observer: Col J. K. Brown & Capt E. G. Nulling

5. Occupation and/or hobbies: Guided Missile Group, DCS/0 Eq, USAF, Washington

6. Attention Attracted by: Capt Nulling called attention of Col Brown to

7. Number of Object(s) Seen: 1

8. Size of Object(s): Appeared slightly smaller than a quarter on windshield of aircraft

9. Color of Object(s): chalky white but not shiny

10. Shape (Sketch if Possible) appeared perfectly round

11. Nature of Luminosity: Was observed to shimmer - possibly due to extreme speed and to distortion of light waves

12. Altitude of Object: Undetermined - 12 to 16,000 feet

13. Estimated Distance of Object from Observer: Unknown - thought to be 4 to 5 miles when first sighted.

14. Estimated Speed of Object: Unknown, but evidently very fast as during the

15. Time in Sight: 7 minutes 7 minutes of the sighting it moved from 60° above horizon in a straight line to 10° (time of disappear-

16. Tactics: Moved in straight line - horizontal flight

17. Sound Made by Object(s): Could not be determined

18. Direction of Flight of Object(s): On a course of 270°

19. Apparent Construction: Undetermined

20. Effect on Clouds: M/S

21. Exhaust Trail Color of): A slight shimmer was observed - could have been exhaust

22. manner of Disappearance: Last seen 10° above horizon - because too small to see

23. Weather Conditions at Time of Sighting: Alto-stratus clouds around

24. Peculiarities Noted: A jittery motion or horizontal shimmer was noticeable at all times

25. Summary of Incident: (over) (See attached page)