RB-47 Incident
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Evidence quality · 6 components
Behavioral anomalousness · 4 components
TL;DR
A USAF RB-47H reconnaissance aircraft was tracked by an unidentified object across four states for 700 miles and 1.5 hours on July 17, 1957, with the object simultaneously confirmed on the aircraft's airborne ELINT sensors, crew visual observation, and independent Fort Worth ground radar - and the Condon Committee, after extensive analysis, formally classified it Unknown (Case 5), one of only a handful to receive that designation.
Confirmed
- ✓Airborne ELINT sensors tracked a 2,800 MHz emission correlated with the UAP for approximately 700 miles across four states
- ✓ARTC ground radar at Fort Worth independently confirmed the unidentified contact at the same positions and times as the crew's visual and ELINT detections
- ✓Six RB-47H crew members including the pilot and electronic warfare officers observed and documented the encounter
- ✓The Condon Committee formally classified the incident as Unknown (Case 5), citing inability to find any conventional explanation after extensive analysis
Unresolved
- ?Whether the original ELINT recordings and raw radar data will be released - they have not been publicly available for independent analysis
- ?What the instantaneous direction reversal - appearing ahead of the aircraft after tracking from behind in no measurable time - represents physically
- ?Whether any classified Soviet aircraft program of the era could account for the performance characteristics, given programs not declassified until decades later
Strongest mundane explanation
A Soviet experimental aircraft or high-altitude reconnaissance balloon conducting surveillance of the RB-47H's known reconnaissance mission - consistent with the Cold War context and the USSR's active aerial reconnaissance programs in 1957 - though performance characteristics including instantaneous direction reversal exceed any known 1957 Soviet or American aerospace technology, and Soviet aircraft operating over multiple U.S. states for 1.5 hours would have triggered a documented national security response.
A USAF RB-47H reconnaissance aircraft from the 55th Strategic Reconnaissance Wing was tracked by an unidentified object over four U.S. states for approximately 700 miles and 1.5 hours. The object was detected simultaneously on multiple independent systems: the aircraft's own electronic intelligence (ELINT) sensors, ground-based Air Route Traffic Control radar, and visually by the crew. The object exhibited instant acceleration, reversal of direction, and was detected at altitudes and speeds consistent with no known 1957 aircraft. The Condon Committee studied the case and was unable to explain it - formally designating it Unknown (Case 5), one of the rare cases receiving that designation.
Key Facts
- ›Date: July 17, 1957, approximately 4:00 AM - 6:30 AM local time
- ›Aircraft: USAF RB-47H reconnaissance aircraft, 55th Strategic Reconnaissance Wing, Forbes AFB Kansas
- ›Crew: 6 men including pilot Maj. Lewis D. Chase and electronic warfare officer Maj. James H. McCoid
- ›Object tracked for approximately 700 miles across Mississippi, Louisiana, Texas, and Oklahoma
- ›Duration of encounter: approximately 1.5 hours
- ›Object detected by three independent systems: aircraft ELINT sensors, visual observation by crew, and ground-based ARTC radar at Fort Worth, Texas
- ›Ground radar confirmed contact at same position as aircraft visual at the same times
- ›Object exhibited instantaneous reversal of direction - going from trailing to being ahead of the aircraft in no measurable time
- ›Condon Committee formally classified the case as Unknown (Case 5) - one of only a handful receiving that designation