📋 Case summary
Over 3 consecutive nights, U.S. Air Force personnel based at RAF Bentwaters/Woodbridge observed a triangular metallic object with flashing red and blue lights near the forest perimeter. Ground markings (3 triangular depressions) and abnormal radiation readings were recorded on surrounding trees. The official memo by Lt. Col. Charles Halt was declassified in 1983, making this incident one of the best-documented military UFO cases in the world.
12
Similar cases identified
18,116
Hatch UDB database analyzed
248
Cases with same overall profile
🔑 Key facts
- Official declassified memo by Lt. Col. Halt
- Triangular ground markings (3 depressions)
- Abnormal radiation recorded on trees
- High-credibility USAF military witnesses
- Often called the 'British Roswell'
🌐 Sighting profile
| Date | December 26-28, 1980 |
| Location | Rendlesham Forest, Suffolk, United Kingdom |
| Witnesses | USAF military personnel (Sgt. Penniston, Burroughs, Lt. Col. Halt) |
| Shape observed | Triangle / Delta |
| Duration | ~3 nights, multiple sightings |
| Category | Military |
🔗 Similar cases in the Hatch UDB database
Our Wiki Intelligence system identified 12 comparable cases in the Hatch database (18,116 historical sightings) by cross-referencing attributes: DLT, MIL, GND, country UK / United Kingdom, and shape-related keywords.
Credibility: ★★★★★★★★★★★★★
Thousands / observer(s). Silent triangle and saucer quickly going down / clouds. Maneuver over airport and city / 2 hours.
GNDCSTMILCIVHQONWS
Credibility: ★★★★★★★★★★★★★
Thousands / observer(s). Huge delta/triangle/box-like craft chases 2 military jets. More jets and much RADAR. / MJ#248.
GNDAIRMILCIVHQODLT
1990
📍 Belgium, Netherlandsand Luxembourg
Credibility: ★★★★★★★★★★★★★
2600 sightings / delta/triangle/box-like craft objects. 300+good observer(s) / last year. / wall St. Journal.
GNDAIRMILCIVHQOSCI
Credibility: ★★★★★★★★★★★★★
Pilot and 1000 observer(s). Huge triangle going south. Videos = flares / USAF.
GNDAIRMILCIVHQONWS
Credibility: ★★★★★★★★★★★★
100+/ drive-in. 2 silent UFO's seen as delta/triangle/box-like crafts blimps saucers etc.
GNDCIVHQOSCRCIGDLT
Credibility: ★★★★★★★★★★★★
Hundreds. 15 saucers / delta/triangle/box-like craft formation. Tinker Air Force Base RADAR. Jets chase. Going quickly west. Denied!
GNDAIRMILCIVHQOSCR
Credibility: ★★★★★★★★★★★★
Hundreds and cops. Huge delta/triangle/box-like crafts and cigars / 22 towns / 2 states. 180° turns. / r34p144.
GNDMILCIVHQOWAVCIG
Credibility: ★★★★★★★★★★★★
100+cops. 200' delta/triangle/box-like craft hovers. Going quickly northeast. Faint humming. Back / 9PM. / International UFO Reporter (CUFOS Group, USA) v8#4.
GNDMILCIVHQOWAVDLT
Credibility: ★★★★★★★★★★★★
Military / NRC report. 400 observer(s)! 3 white triangles hover over treeline.
GNDCSTCIVHQODLTNOC
Many and press. Saucer with searchlight. Delta/triangle/box-like crafts exit. Objects back 24 October and 20 December and 11 Jan. '50.
GNDMILCIVHQONWSMID
Air Traffic Controllers and many. Delta/triangle/box-like craft going quickly south. Very fast. Many maneuvers. Rises going [to] 80K'. / r137#4p2.
GNDMILCIVHQONWSDLT
11/25/1978
📍 Great Britain and Ireland
Credibility: ★★★★★★★★★★★
Many observer(s). Bright yellow triangle hovers / high altitude. Going quickly northeast. / r171.
GNDMILCIVHQONWSDLT
📊 Statistical context
Out of the 18,116 sightings in the Hatch UDB database covering decades of worldwide ufology:
- Total number of cases in the relevant country or countries: 0
- Cases sharing the main attributes (DLT, MIL): 248
- Similar cases retained (multi-criteria score): 12
⚖️ Vigi-Sky analysis
The Rendlesham Forest case stands out for the 5 major characteristics detailed above. Cross-referencing with our historical database shows it fits within a broader set of comparable cases, suggesting the existence of recurring patterns not yet explained by conventional science.
Vigi-Sky takes a scientific, open and honest approach: we draw no definitive conclusions but systematically document and cross-reference sightings. Contextual analysis by our Claude AI, combined with the living database, helps progressively enrich our understanding of the phenomenon.
⚠️ Methodological notice. This report is automatically generated by the Vigi-Sky Intelligence system based on public sources and the Hatch UDB database. It does not constitute proof of extraterrestrial origin. "Similar" cases are selected based on shape, geography, and declarative attribute criteria, and do not imply any causal correlation between them.
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