CORROBORATED
CF-GEI-20050101637 CORROBORATED
The Annecy-le-Vieux Glider-Like Aircraft
CASE FILE — CF-GEI-20050101637 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2005-01-17
Location Reported location of the sighting or event
Annecy-le-Vieux, Haute-Savoie, France
Duration Estimated duration of the observed phenomenon
Brief passage (estimated 1-2 minutes)
Object Type Classification of the observed object based on witness descriptions
other
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
1
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On the evening of January 17, 2005, at approximately 22:45 (10:45 PM), a single witness standing on their balcony in Annecy-le-Vieux, Haute-Savoie, observed the passage of an unusual aerial object. The witness described seeing a large, brilliantly illuminated form that resembled a glider aircraft. The object displayed what appeared to be a red light and was accompanied by a slight motor noise as it passed overhead.
The sighting occurred in a mountainous region of southeastern France, near the Swiss border and Lake Annecy, an area with regular air traffic including small aircraft and gliders due to favorable conditions for aviation sports. The witness was well-positioned on their balcony to observe the night sky, providing clear visual access to the object's passage.
GEIPAN, France's official UFO investigation service operated by CNES (French Space Agency), classified this case as 'B' - indicating a probable identification with conventional aircraft. The investigative conclusion determined that the witness most likely observed the passage of a conventional aircraft, possibly a small plane or motorized glider operating in the area during evening hours.
02 Timeline of Events
22:45
Initial Observation
Witness on balcony first notices a large, brilliantly lit aerial object approaching
22:45-22:47
Object Passage
Object passes overhead, displaying glider-like characteristics with visible red light and audible slight motor noise
22:47
Object Departs
Object continues on its flight path and disappears from view
Post-event
Report Filed
Witness reports sighting to GEIPAN for investigation
Investigation
GEIPAN Classification
Official investigation concludes probable conventional aircraft identification, assigned Class B
03 Key Witnesses
Anonymous Witness 1
Civilian resident
medium
Local resident of Annecy-le-Vieux who observed the object from their balcony during late evening hours. Demonstrated some familiarity with aircraft by comparing object to a glider.
"Une grande forme ressemblant à un planeur très brillant avec un feu qui semble rouge et un léger bruit de moteur. (A large form resembling a very bright glider with what seemed to be a red light and a slight motor noise.)"
04 Analyst Notes -- AI Processed
This case presents low strangeness and high probability of conventional explanation. The witness description itself suggests familiarity with aircraft, specifically comparing the object to a 'planeur' (glider). The presence of engine noise, albeit slight, contradicts a pure glider but supports identification as a powered aircraft. The red light corresponds to standard aviation navigation lighting required for night operations.
The GEIPAN 'B' classification indicates sufficient data to reach a probable conclusion but without absolute certainty - typically applied when witness testimony strongly suggests conventional phenomena but lacks corroborating evidence like radar data or multiple witnesses. The late evening timing (22:45) is within normal parameters for general aviation activity, though somewhat late for recreational flying. Annecy-le-Vieux's proximity to Annecy - Mont Blanc Airport (approximately 5km away) makes aircraft passage highly plausible. No unusual flight characteristics, electromagnetic effects, or high strangeness elements were reported.
05 Theory Comparison
BELIEVER ANALYSIS
Unusual Aircraft Configuration
While likely conventional, the witness's emphasis on the object being 'very bright' and the specific glider-like appearance could indicate an unusual aircraft configuration or experimental design. However, no features suggest technology beyond current aviation capabilities, and the presence of standard navigation lighting and engine noise firmly anchors this within conventional aerospace.
SKEPTIC ANALYSIS
Small Aircraft Misidentification
The sighting represents a straightforward case of uncertainty about aircraft type rather than anomalous phenomena. The witness correctly identified aviation characteristics (navigation lights, engine sound, flight profile) but may have been unfamiliar with the specific aircraft model or surprised by its brightness. Night conditions can make aircraft appear more luminous and unusual than during daylight, particularly when viewed against a dark sky.
06 Verdict
ANALYST VERDICT
This case almost certainly represents the observation of a conventional aircraft, most likely a small motorized aircraft or motor glider conducting evening operations near Annecy. The witness's own description using aviation terminology ('planeur'), the presence of engine noise, navigation lighting, and the geographical proximity to an active airport all support this conclusion. The GEIPAN 'B' classification appropriately reflects high confidence in conventional explanation despite the single-witness limitation. This case holds minimal significance for anomalous phenomena research and serves primarily as an example of honest misidentification or uncertainty about aircraft type rather than genuinely unexplained aerial phenomena.
AI CONFIDENCE SCORE:
85%
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