UFO Timeline

1948.1108 Colonel McCoy Memo

UFO Timeline

 

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Colonel McCoy Memo
On 8 November 1948, a letter from Colonel McCoy to General Cabell in response to further questions raised by General Cabell in the light of the memo from Colonel Brooke Allen dated 1948.1011. (Commonly referred to as “the McCoy Memo”, this is a further document that is occasionally referred to as “the Ghost of the Estimate” (although this term is more often used in relation to a document dated 1948.1210 entitled “Analysis of Flying Object Incidents in the United States”)).

 

 

1948.1210 Ghost of the Estimate

UFO Timeline

 

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Ghost of the Estimate
On 24 January 1878, the “Analysis of Flying Object Incidents in the United States”, Study #203, is prepared by the USAF Directorate of Intelligence (“DI”) and the Office of Naval Intelligence. (Commonly referred to, controversially, as “the Ghost of the Estimate”. Also referred to as “Air Intelligence Report No. 100-203-79”).

 

 

 

 

1948.1213 Lipp report

UFO Timeline

 

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Lipp report

On 13 December 1948, Dr James E Lipp of the Rand Corporation provides a report addressed to Brigadier General Putt (US Air Force Director of Research and Development).

This report subsequently appeared as Appendix D to the Project Sign Report.

 

 

1948.1216 Project Grudge name change

UFO Timeline

 

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Project Grudge name change
On 16 December 1948, an order was given by the Air Force director of research to change name of Project Sign to Project Grudge.

 

 

 

1949.0200 Project Sign report

UFO Timeline

 

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Project Sign report
During February 1949, the final report of Project Sign (“The Findings of Project Sign”) was completed.

 

Officially cited as Technical Report-TR-2274-IA of the Technical Intelligence Division, Air Materiel Command, Wright-Patterson AFB, Ohio.

(Commonly referred to as “the Project Sign Report”).