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LEVEL 03 // ARCHIVAL CASE RECORD [C-000234]
C-000234CASE RECORD · CLASSIFICATION: CRAFT

RB-47 RADAR/VISUAL ELECTRONIC OBJECT (1957 REPORT)

Case-specific object or source reported during the 1957 RB-47 incident, correlated in Clark’s treatment across visual observations, ground/airborne radar and ELINT direction-finding. The visible hull shape was not determined.

ANOMALY REFERENCE PICTOGRAM
REFERENCE ONLY — NOT WITNESS ARTWORK
Claims are grouped by attribute so differing descriptions, measurements, and interpretations can be compared without averaging them into a single “fact.”
SOURCE COMPARISON

Reported Craft Behavior

HOW TO READ THIS
CLAIM-138048reported
Clark summarizes the RB-47 case as involving an unidentified object or source correlated across visual observation, radar, and ELINT direction-finding during the July 17, 1957 flight.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Case evidence channels”, PDF pp. 2302–2303
SUPPORTS
CLAIM-138049reported
The RB-47’s ELINT equipment detected an apparently airborne radar-like source whose signal resembled some characteristics of a common air-defense radar while differing in others.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “ELINT signal characteristics”, PDF p. 2303
SUPPORTS
CLAIM-138050reported
The specific detection involved S-band direction-finding equipment; Clark notes that the source’s apparent signal strength was unusually high in the crew’s analysis.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Electronic emission”, PDF p. 2303
SUPPORTS
CLAIM-138051reported
The Wing Intelligence report recorded a signal moving rapidly “upscope” on the direction-finding display, behavior interpreted by the operator as indicating a rapidly moving airborne source while the aircraft was flying straight and level.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Upscope signal”, PDF p. 2318
SUPPORTS
CLAIM-138055reported
At about 5:42 a.m., as the RB-47 increased speed and turned to pursue, the visually/electronically tracked object reportedly pulled ahead.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Pursuit maneuver”, PDF p. 2342
SUPPORTS
CLAIM-138056reported
The Duncanville air-defense radar station reportedly confirmed tracking an object at the location being reported by the RB-47 crew.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Ground radar correlation”, PDF pp. 2303–2304
SUPPORTS
CLAIM-138057reported
Crew testimony and the case reconstruction describe episodes in which the visual light, ELINT signal, and radar target disappeared at effectively the same time and were later reacquired.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Simultaneous loss/reacquisition”, PDF pp. 2303–2304
SUPPORTS
CLAIM-138058reported
During a later close approach, the crew estimated a range of about five nautical miles and an apparent object altitude near 15,000 feet before visual contact and ground-radar contact were again lost.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Second close approach”, PDF pp. 2352–2353
SUPPORTS
CLAIM-138059reported
After the RB-47 turned for home, the contemporaneous report says ELINT continued to direction-find the source off the aircraft’s tail from 6:02 until about 6:40 a.m., when it faded near Oklahoma City; later testimony also described radar tracking behind the aircraft.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Trailing contact”, PDF p. 2356
SUPPORTS
Multiple claim rows are intentionally retained when sources disagree. ANOMALY does not silently reconcile competing values.
SOURCE COMPARISON

Reported Craft Appearance

HOW TO READ THIS
CLAIM-138053reported
The pilot could not determine the object’s shape or size but had the impression that the light emanated from the top of an object.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Visual morphology limits”, PDF p. 2340
SUPPORTS
CLAIM-138054reported
The contemporaneous intelligence report described the visually observed steady object as red, while later pilot testimony referred to a huge red glow.
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “RB-47 Electronic Intelligence Case, 1957” → “Visual color”, PDF pp. 2340–2344
SUPPORTS
Multiple claim rows are intentionally retained when sources disagree. ANOMALY does not silently reconcile competing values.