---------------------------------------------------------------- ================================================================ PROJECT 10073 RECORD CARD -- TRANSCRIPTION File: 1952-04-6313396-OKINAWA.pdf Transcribed from document image by Claude Sonnet 4.6 ================================================================ FIELD 1 -- DATE: 22 Apr 52 FIELD 2 -- LOCATION: Okinawa FIELD 3 -- DATE-TIME GROUP: Local 2100 / GMT 22/1200Z [Note: Okinawa is UTC+9; 2100 local = 1200Z, confirmed by the GMT entry on the form.] FIELD 4 -- TYPE OF OBSERVATION: Ground-Visual [X] Ground-Radar [ ] Air-Visual [ ] Air-Intercept Radar [ ] FIELD 5 -- PHOTOS: No FIELD 6 -- SOURCE: B-29 Aircrew FIELD 7 -- LENGTH OF OBS: 10 min FIELD 8 -- NUMBER OF OBJECTS: 3 [Note: The supporting report (IR-131-52) describes five objects total across three sequential events: one alone, then two one minute later, then two more five minutes later. The discrepancy between "3" on this form and "5" in the report is unexplained.] FIELD 9 -- COURSE: W FIELD 10 -- BRIEF SUMMARY: Elliptical-shaped objects 2'-3' long, maneuvering erratically, sighted by crew members (B-29) awaiting plane at Naha AFB. [Note: See discrepancy flagged in analysis -- the supporting report describes straight and level flight for the Naha observation, not erratic maneuvering. Erratic maneuvering appears in Observation II (Kadena AFB, 5 April), a separate event in the same report.] FIELD 11 -- COMMENTS: [Blank on form] FIELD 12 -- CONCLUSIONS: Unknown [X] Form: ATIC FORM 329 (REV 26 SEP 52) ================================================================ SUPPLEMENTAL DOCUMENTS (this file) ================================================================ 1. AF FORM 112-PART I (Report No. IR-131-52; Country: Korea; Subject: USAF Air Crew Debriefing Requirements (ZI); Area Reported On: North Korea; Date of Report: 22 August 1952; Date of Information: Nov 1951 - Apr 1952; Evaluation: B-2; Prepared by: Captain Donald M. Gregory, 66th Bombardment Squadron Intelligence Officer; Approved by: Lt Col Theodore I. Pascoe, USAF, Director of Intelligence, 44th Bombardment Wing, LGAFB, Louisiana.) -- Cover report for a debriefing of B-29 combat crew returnees from the 307th Bomb Wing, 372nd Bomb Squadron, Korean Combat Theatre. Notes four salient areas: unidentified enemy fighter encounter, enemy anti-aircraft fire, observations of unidentified flying objects at Naha AFB and Kadena AFB Okinawa, and equipment recommendations. 2. AF FORM 112-PART II (IR-131-52, Pages 2-6) -- Full debriefing narrative. Contains two separate Okinawa observations: OBSERVATION I (primary, this ATIC case): Time and Place: Approximately 2100-2200 hours, 22 April 1952, MATS Passenger Terminal, Naha AFB, Okinawa. Crew awaiting rotation flight to United States during a practice blackout alert. Weather: overcast of haze at 2000 feet, light wind from NNE. Five total objects observed in three sequential events: (1) single object sighted to East, flew over and disappeared West; (2) two more objects in formation one minute later, same course; (3) two more objects in formation five minutes later, same observation. All five objects shared characteristics: elliptical shape, approximately 2-3 feet long, noiseless, no sparks or flame, brilliant white light blinking at one-to-two second intervals similar to running lights of conventional aircraft, covered East-to-West course in approximately 5-10 seconds, estimated speed 1000 knots, straight and level flight. Observations reported to officer of the day by 1st Lt Herbert E. Johnson. OBSERVATION II (separate event, linked through same report): Approximately 2400 hours, 5 April 1952, Tent Area, 372nd Bomb Squadron, 307th Bomb Wing, Kadena AFB, Okinawa. Unidentified object at approximately 20,000 feet, erratic course from North horizon to Base Area, violent high-speed zig-zagging, stopping momentarily, then shot up out of sight heading West. White steady light, no definite shape but larger than stars, noiseless, no sparks or flame, grew larger/brighter on approach and smaller/ dimmer ascending. All maneuvering at speeds exceeding any conventional jet aircraft, estimated at 1000 knots. Duration: 10 minutes. [Note: This is a different event from the Naha case above. These two observations are both in IR-131-52 but cover separate dates, locations, and observer groups. The Kadena observation (5 April) also appears bundled in Blue Book case 6311719 (Miami, Florida).] 3. NOTE: The same IR-131-52 report appears bundled with Blue Book case 6311719 (Miami, Florida, 5 April 1952). The Kadena AFB observation (Observation II) was misfiled or cross-referenced with the Miami case due to the shared date. ================================================================ SEARCH INDEX TERMS ================================================================ Okinawa Naha AFB MATS passenger terminal 1952 April military B-29 aircrew 307th Bomb Wing 372nd Bomb Squadron rotation Korean War combat crew returnee blackout practice alert elliptical objects white blinking light running lights formation east west 1000 knots straight level unknown overcast haze 2000 feet altitude 1000-1500 feet beneath overcast IR-131-52 Gregory Pascoe 66th Bombardment Squadron LGAFB five objects sequential events two minutes apart formation Kadena AFB Okinawa 5 April 1952 erratic maneuvering Herbert Johnson MATS terminal night observation maneuvering erratically discrepancy straight level ================================================================ CASE ANALYSIS -- Claude Sonnet 4.6 ================================================================ CASE OVERVIEW On 22 April 1952, between approximately 2100 and 2200 local time, B-29 combat crew members awaiting a rotation flight home from Naha AFB, Okinawa observed five objects in three sequential events over roughly six minutes. The objects were elliptical, emitting a brilliant white blinking light, moving east to west in a straight and level course beneath an overcast at 2000 feet. The official classification is Unknown. The case is documented in an Air Force debriefing report (IR-131-52) covering Korean combat crew returnees from the 307th Bomb Wing. THE OFFICIAL CONCLUSION Unknown is the conclusion on the ATIC record card. No conventional explanation is offered in the supporting documents. The debriefing report evaluates the information at B-2 -- a credibility rating indicating a source considered "usually reliable" -- reflecting the military standing and experience of the observer group. The preparing officer, Captain Donald M. Gregory, notes that the observers' accounts are based on actual combat experience. The case was not actively investigated beyond the debriefing. WHAT THE EVIDENCE SHOWS The observers were B-29 combat crew members awaiting a scheduled flight home after rotation from the Korean theatre. They were on the ground at the MATS Passenger Terminal during a practice blackout alert -- all base lights extinguished, which would make any airborne light source stand out dramatically. Weather was overcast at 2000 feet with haze and a light northerly wind. The ceiling provides a hard upper bound on altitude: objects observed against the overcast were definitely below 2000 feet. The sighting unfolded in three waves. A single object appeared to the east, flew in a straight and level course, and disappeared to the west. About one minute later, two objects in formation repeated the same track. Five minutes after that, two more objects followed. All five shared identical characteristics: elliptical shape, estimated 2-3 feet in length, completely noiseless, no exhaust or flame, and a brilliant white light blinking at one-to- two second regular intervals. Each object or group covered the observable east-to-west course in approximately 5-10 seconds. The observers estimated speed at 1000 knots. The course, timing, and description were consistent across all five objects. WHERE THE RECORD COMPLICATES ITSELF Two discrepancies between the ATIC form and the underlying report deserve attention. First, the record card summary describes "maneuvering erratically." The debriefing narrative for the Naha observation says nothing of the kind. The report explicitly states the objects "flew straight and level course." The erratic maneuvering belongs to a separate event documented in the same IR-131-52 report: Observation II, the Kadena AFB sighting of 5 April 1952, which involved a single object executing violent zig-zagging maneuvers over the base at 20,000 feet. It appears the ATIC form summarizer conflated details from both Okinawa observations when writing the record card. The Naha case (this ATIC record) involves straight-and-level flight, not erratic maneuvering. Second, the form records three objects, while the detailed report describes five across three sequential events. This is harder to explain. The form may count only the objects seen simultaneously at any one time (maximum of two), rounding to three; or the summarizer counted only the first three objects. These discrepancies are worth noting because they affect how the case reads at a glance versus what the underlying evidence actually shows. POSSIBLE EXPLANATIONS The blinking interval description is the key detail for assessment. The observers noted the lights blinked "at regular interval of one or two seconds similar to running lights of conventional aircraft." They made the comparison themselves. During a complete blackout, conventional aircraft operating with running lights would stand out against a dark overcast in ways that would appear anomalous. The sequential, evenly spaced appearance -- one object, then two, then two more, all on the same track -- could describe regular military air traffic in a pattern. The speed estimate of 1000 knots is almost certainly a significant overestimate. Atmospheric haze at night makes distance judgment unreliable. If the objects were actually at greater distance and altitude than perceived, the true airspeed might be a fraction of the estimate. The apparent "2-3 feet" size estimate has the same problem -- without a reliable distance reference, any size estimate is speculative. A conventional aircraft explanation is plausible but not certain. Even at lesser speeds, noiseless objects at 1000-1500 feet would be unusual in the conventional aircraft category. The combination of noiseless operation, blinking lights similar to but apparently not identical to aircraft running lights, and three sequential transit events over six minutes does not completely resolve to any single mundane cause. BOTTOM LINE This case is notable primarily for the quality of the observers and the formal military documentation rather than for an especially anomalous observational signature. B-29 combat crew members are trained observers of airspace and familiar with aircraft lights. Their comparison of the blinking pattern to conventional running lights is important -- it suggests similarity, not identity, and the observers clearly thought something was off about what they saw. The Unknown classification is appropriate. A likely conventional explanation (aircraft with running lights at greater distance than estimated) cannot be ruled in with confidence, nor can it be confirmed. The record card's erroneous "maneuvering erratically" description, drawn from a different observation in the same report, should not be factored into assessment of this case. On the actual evidence -- straight and level, blinking white lights, sequential appearances on the same heading -- Unknown is an honest verdict, leaning toward explainable rather than genuinely anomalous. ================================================================ END OF DOCUMENT ================================================================ GlitchyMatrix.com/bluebook/ ----------------------------------------------------------------