38_143685_box_Incident_Summaries_101-172

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CHECK-LIST - UNIDENTIFIED FLYING OBJECTS

Incident # 141

1. Date 30 June 1948

2. Time 11:25 A. M., to 1:27 PM and shortly thereafter

3. Location Hecla, South Dakota

4. Name of observer Norman Pfutzenreuter

5. Occupation of observer Chemical Engineer - Amateur Astronomer

6. Address of observer Hecla, South Dakota

7. Place of observation Between Watertown, S. D., & Webster, S. D.

8. Number of objects 1

9. Distance of object from observer N/S

10. Time in sight Slightly over two hours

11. Altitude 150 miles (?)

12. Speed Stationary

13. Direction of flight Stationary

14. Tactics Remained in one position then disintegrated approx

15. Sound None

16. Size N/S

17. Color Like polished aluminum

18. Shape Changing

19. Odor detected None

20. Apparent construction Seemed to be a cluster of parts

21. Exhaust trails Particles of disintegrating mass left very faint trails of vapor

22. Weather conditions Brilliantly clear (CAVU) - Wind velocity 3 MPH

23. Effect on clouds No clouds

24. Sketches or photographs Map showing locations of sightings

25. Manner of disappearance Disintegrated into smaller pieces

26. Remarks: Object appeared as cluster of parts which remained fairly stationary and constant for some two hours when it underwent a rather slow change in shape. A large chunk fell off. Within the next 2-1/2 minutes the entire spot started to very slowly disintegrate. Three larger parts moved (over)

CONFIDENTIAL

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