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This Ministry of Defence file, released through The National Archives and published by The Black Vault, holds the MOD's 2002 handling of Dr David Clarke's requests for UFO documents under the Code of Practice on Access to Government Information. It includes the MOD's 9 December 2002 reply, which covered reports from 1976, 1980, 1993 and 1996 and charged £260. It also contains internal emails and file requisitions, plus Foreign Office and United Nations papers from 1978 on Grenada's proposal for UFO research.
“The Advance”16 pages
.. r' ./~J: . . .h "know events" in the realm of aero-space or physics the smallest ~tails take on considerable significance. Analysis of observations Correlations made at different levels enable it to be said that in about 8~ of cases, "Strange" observations are ~ithout any possible doubt, due to known .aero-space phenonena. They show from the evidence that the observer has indeed se~n, and observed accurately a phenomenon that was strange to him, but which exists in reality since, on the basis of trds description his statement can be correlated with aero-spatial or physical "events" which have indeed occurred at the site of the observation and at the stated time: it is therefore improbable that the remaining unexplained cases &.aould be pure invention. Analysis of observations For the sa~e of ~bjectivity, in France only unexplained operations of the same phenomenon by at least two adults have been retained for scientific analysis. The volume of observations thus retained for the period 1951-1975 is about 150 cases, which represent 8)b of the initial volume of observations. The following information may be drawn from these: DURATION OF OBSERVATION WEATHER CONDITIONS I DISTANCE 1 HOUR - 1 DAY 12!16 RAINY OR GREATER THAN 3K}t 3&% 20 MIN - 59 MIN 15% SNOV.'Y Yl> 1 - 19 MIN 41% LOW CLOUD 12% 1- 3 KM 1~ 10 SEC - 1 MIN 1~ SKY COVERED WITH 900- 150ai 2~" HIGH CLOUD 1:;'..6 20m - 1Un J}G LESS THP.N 10 SEC 12% THICK CLOUD 22% LESS THAN 10m "'lf, CLEAR SKY 50J' ~· ·CONDITIONS IN vlHICH OBSERVA'riONS 'v.'Er.Z WJ>E Distribution of twenty· cases of "landings" reported, bearing in mind that no photo- graph of these particUlar cases exists:
Document, cited by the archive. The PDF is mirrored here; the original link is above. 492 pages are in the text index: search them above, or from the library's search.