Statements (24)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:UFO | 
| gptkbp:alsoKnownAs | gptkb:Washington_National_Airport_UFO_incident | 
| gptkbp:explains | temperature inversion misidentified aircraft | 
| gptkbp:investigatedBy | gptkb:Project_Blue_Book gptkb:United_States_Air_Force | 
| gptkbp:involves | radar detection visual sightings multiple UFO sightings | 
| gptkbp:mediaCoverage | gptkb:The_New_York_Times gptkb:The_Washington_Post | 
| gptkbp:notableWitness | gptkb:military air traffic controllers pilots | 
| gptkbp:occurredIn | gptkb:United_States gptkb:Washington,_D.C. July 1952 | 
| gptkbp:relatedTo | gptkb:Project_Blue_Book gptkb:UFO_sightings_in_the_United_States | 
| gptkbp:resultedIn | public concern official explanations | 
| gptkbp:bfsParent | gptkb:Washington,_D.C._UFO_incident | 
| gptkbp:bfsLayer | 6 | 
| https://www.w3.org/2000/01/rdf-schema#label | Washington Flap |