Denmark

Flyvevåbnet (Royal Danish Air Force)

The complete UFO archive of the Danish Air Force Operations Centre, released publicly in 2009. Standardised military sighting questionnaires, investigation records, and reporting logs spanning six decades. Documents are in Danish with partial English translations available.

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Flyvevåbnets UFO-Arkiv

Air Force UFO Sighting Reports

329 pages of scanned documents: standardised SPORGESKEMA (Form 3622) questionnaires used by military and civilian authorities for reporting observed aerial phenomena. Each form includes date, time, location, sky conditions, observer details, and description.

English Translation Index

Structured data extracted and translated from the Danish sighting questionnaires. Key fields (date, location, description, observer type) rendered in English for cross-referencing against the wider archive.

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Danish → English
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About This Collection

The Danish Air Force Operations Centre collected all UFO reports into a single file over several decades. Unlike many other nations, Denmark released the entire file at once in 2009 through the Defence website (forsvaret.dk), making it one of the more complete national UFO archives available.

The reports use a standardised questionnaire format (SPORGESKEMA, Form 3622) that was shared with NATO allies for reporting "rockets and similar objects" (Raketter o.l.). The classification marking RCS: CHODDEN INT-20209 appears throughout, indicating the reports were processed through NATO intelligence channels.

The archive is particularly valuable for its consistency. The same reporting form was used across the entire period, making it possible to conduct longitudinal analysis of sighting patterns, observer types, and phenomenon characteristics across six decades of Danish reporting.