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CHECK=LIST - UNIDENT IFIED FLYING OBJECTS Ms le Date 30 dune 1948 Incidont # ipl 2. Time 11:25 4. oe to 1:27 PM and shortly thereafter 3. Location Hecla, South Dakota hk. Namo of observor Norman Pfutsenreuter 5. Occupation of obsorvor Chemical Engineer - Amateur Astronomer om Address of obsarvor Hecla, South Dakota 7. Placo of obsorvation Between Watertown, S. D., & Webster, S. D. : 8. Numbor of objocts 1 9. Distance of object from obsorvoer n/s 10. Timo in sight Slightly over two hours ll. Altitude 150 miles (7) 12. Speod Stationary : 13. Diroction of flight Stationary ly. Tactics Remained in bne/posi tion then disintegrated 15. Soumd Wone 16, Size Ws 17. Color Like polished aluminum. = 7 4 9 mm € AR a : t. 18, Shapo Changing 3h ay Oo Bee Boe ey 19. Odor dotoctod None 20. <Apparont construction Seemed to be a cluster of parts Gi 21. Exhaust trails Particles of disintegrating mass left very faint trails of vapor 22, Woathor conditions Brilliantly clear (CAVU) - Wind velocity 3 MPH 23. Effoct on clouds No clouds : 2h, Skotehes or photographs Map showing locations of sightings 25. Manner of disappearance Disintegrated into smaller pieces — 26. Romarks: Object appeared as oluster of parts which remained fairly stationary and constant for some two hours when it underwent a rather slow change in shape. A large churk fell off, Within the next 2-1/e minutes the- entire spot started to Sery spewiy, Aisanboanen®> Three larger parts moves 4 over 4 ES: a = aa ede a - oes BE SS ee ses A ats fee ate