CORROBORATED
CF-GEI-19971101487 CORROBORATED

The Champ-du-Boult Weather Balloon Recovery

CASE FILE — CF-GEI-19971101487 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
1997-10-28
Location Reported location of the sighting or event
Champ-du-Boult, Calvados, Normandy, France
Duration Estimated duration of the observed phenomenon
N/A - recovered object
Object Type Classification of the observed object based on witness descriptions
other
Source Origin database or archive this case was sourced from
geipan
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On October 28, 1997, children in the rural commune of Champ-du-Boult, Calvados department in Normandy, France, recovered debris from a weather balloon (ballon sonde) caught in brambles. The recovered materials consisted of a metallic sphere made of two interlocking aluminum hemispheres attached to a parachute, along with fragments of rubber balloon material (baudruche) scattered in the surrounding area. The case was investigated by GEIPAN, France's official UAP investigation service operated by the national space agency CNES. The physical evidence clearly matched standard meteorological balloon equipment used for atmospheric research and weather data collection. Weather balloons typically carry radiosondes - instrument packages housed in protective spherical casings - suspended beneath latex or neoprene balloons. Upon reaching high altitude, these balloons burst and the instrument package descends via parachute, often landing in rural areas far from the launch site. GEIPAN classified this case as "A" - their highest confidence category indicating complete identification with 100% certainty. The physical recovery of identifiable meteorological equipment allowed investigators to conclusively determine the prosaic nature of the debris, eliminating any anomalous aspects to the discovery.
02 Timeline of Events
Unknown prior date
Weather Balloon Launch
Meteorological balloon with radiosonde instrument package launched from unknown French or European weather station
Unknown
Balloon Burst and Descent
Weather balloon reached altitude ceiling, burst, and radiosonde package descended via parachute into Normandy countryside
1997-10-28
Discovery in Brambles
Children discover debris caught in brambles (ronces) near Champ-du-Boult, recovering aluminum sphere, parachute, and balloon fragments
1997-10-28 onwards
GEIPAN Investigation
Official investigation by GEIPAN examines recovered physical evidence and conclusively identifies meteorological equipment
Investigation conclusion
Classification A Assigned
GEIPAN assigns Classification A (100% identified) based on physical evidence matching standard radiosonde components
03 Key Witnesses
Anonymous Child Witnesses
Civilian children
medium
Group of children playing in rural area near Champ-du-Boult who discovered the debris in brambles
04 Analyst Notes -- AI Processed
This case represents a textbook example of misidentified aerospace debris that was properly investigated and resolved. The GEIPAN "A" classification indicates investigators had physical evidence in hand and could definitively identify the object. Weather balloons are launched daily from meteorological stations worldwide, and their descent patterns can carry instrument packages hundreds of kilometers from launch sites, frequently resulting in unexpected discoveries by civilians. The recovery by children is noteworthy from a reporting perspective - this demographic often discovers such debris during outdoor play in rural areas. The brambles mentioned in the report suggest the equipment had been there for some time before discovery, though the report doesn't specify whether this was the same day as the balloon's flight or a delayed recovery. The presence of both the aluminum instrument housing with parachute and scattered balloon fragments indicates a complete recovery of the typical balloon train components, providing investigators with comprehensive physical evidence for identification.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
06 Verdict
ANALYST VERDICT
This case is definitively explained as recovered meteorological balloon equipment. The physical evidence - aluminum radiosonde housing, parachute, and latex balloon fragments - perfectly matches standard weather balloon configurations used by meteorological services throughout France and Europe. GEIPAN's "A" classification reflects absolute certainty in this identification. This case has no significance to UAP research beyond serving as a useful example of how proper investigation and physical evidence recovery can conclusively resolve apparent anomalies. It demonstrates the value of official investigation protocols and the importance of examining physical evidence before drawing conclusions about unidentified aerial phenomena.
AI CONFIDENCE SCORE:
85%
07 Community Discussion
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