Project Sign Progress Report, 1948
DOW-UAP-D097 · page 28 of 45
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CONFIDENTIAL Incident No. | Exhaust Trail | Heading | Altitude Ft. | Speed | Effect on Clouds 90 | One witness thought he saw vapor trails | Northerly | 8000-10000 | Not stated | Not stated 91 | Not stated | Disappeared in the south-west | Great height | High rate of speed | Not stated 92 | Not stated | West | Above 1000 | Great speed | Not stated 93 | None | Dropped from sight on north side of Mt. Tom near Holyoke, Mass. | Not stated | Very high velocity | Not stated 94 | Green and blue flames | Descending vertically | From 13000 | Very high rate of speed | Not stated 95 | Several colors of flames - red and green predominating | Eastward | Low | Very high rate of speed | Not stated 96 | Not stated | Not stated | 1200-1300 | Not stated | Not stated 97 | Not stated | Not stated | Not stated | Not stated | Not stated 98 | Not stated | Not stated | Not stated | Not stated | Not stated 99 | Not stated | West to east | Not stated | Not stated | Not stated 100 | Grey streaks were left in sky | North to south | Not stated | Not stated | Not stated NND 927545 CONFIDENTIAL