CONFIDENTIAL
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
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)
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