Project Blue Book file, RB-47, July 17, 1957

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.

Mr. Phillip J. Klass Aviation Week & Space Technology McGraw-Hill, Inc. Rm 425, National Press Bldg. Washington DC 20004

## Dear Mr. Klass

I lack the technical background for full appreciation of your detailed account of the RB-47 UFO case, but the explanation you derive from your detailed analysis of the evidence provides a reasonable explanation.

Thank you for sending us copies of your report.

Sincerely