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This Project Blue Book file, released through The Black Vault, covers the RB-47 encounter of 17 July 1957 over Mississippi, Louisiana, Texas and Oklahoma. It includes the record card, which lists the sighting as identified as American Airlines flight 655, and Air Defense Command correspondence that carried the sighting as unknown. There is also Major Lewis D. Chase's observer data sheet and an electronic analysis finding it difficult to conclude nothing was present. James McDonald's reconstructed account is included, along with a CAA letter about airliner incidents.
“Mineral Wells”2 pages
Read from the scan by GLM-OCR; expect the odd misread word.
JOINT MESSAGEFORM - CONTINUATION SHEET OKLAHOMA CITY, OKLAHOMA. AT THIS TIME SIGNAL PADED RATHER ABRUPTLY. 55SRW DOI HAS NO Doubt THE ELECTRONIC D/F'S COINCIDED EXACTLY WITH VISUAL OBSERVATIONS BY A/C NUMEROUS TIMES THUS INDICATING POSITIVELY THE OBJECT BEING THE SIGNAL SOURCE. See Item 44 of Radar Questionnaire for track plots of B-47 as UFU . Manners of object rules out balloons assemblies both and retorts . Another ( 100 ) plane in the area " playing tag " will be 0.47 ? Se : 019 August DOYNGRADEY AT 2 YEAR INTERVALS DECLASSIFIED ATTENDED 12 YEARS. DOD. DIE 6200.10 UNCLASSIFIED 55DCI/rkg PAGE NR 4 NR OF PAGES 4 SECURITY CLASSIFICATION
Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 57 pages are in the text index: search them above, or from the library's search.