---------------------------------------------------------------- ================================================================ PROJECT 10073 RECORD CARD -- TRANSCRIPTION File: xxxx-xx-6388466-_ILLEGIBLE_-213-.pdf Transcribed by Claude Sonnet 4.6 for GlitchyMatrix.com/bluebook/ ================================================================ NOTE: This file contains two conjoined Project Sign incidents -- Incident 212 and Incident 213 -- from the same evening and broadly the same area. Both are addressed below. The archive location field reads ILLEGIBLE; internal documents establish Dayton, Ohio (North Riverdale). The date is clearly 3 December 1948 throughout all supplemental documents; the archive classifies the date as unknown. FIELD 1 -- DATE: 3 December 1948 (Confirmed across all supplemental documents; archive file classified as date unknown) FIELD 2 -- LOCATION: Dayton, Ohio (North Riverdale / Siebenthaler Ave. area, Incident 212; Needmore Road approaching Wagoner Ford Road, Incident 213) FIELD 3 -- DATE-TIME GROUP: Local 1713-1715 (twilight); no Zulu conversion recorded FIELD 4 -- TYPE OF OBSERVATION: Ground-Visual [X] Ground-Radar [ ] Air-Visual [ ] Air-Intercept Radar [ ] FIELD 5 -- PHOTOS: No FIELD 6 -- SOURCE: Military / Civilian (MCIA-cleared civilian observer, Incident 212; two Navy Bureau of Aeronautics officers, BAGR-CD, Wright-Patterson AFB, Incident 213) FIELD 7 -- LENGTH OF OBS: Incident 212: approximately 1 second total (two 1/2-second pulses); Incident 213: several minutes FIELD 8 -- NUMBER OF OBJECTS: 1 FIELD 9 -- COURSE: Ascending; definite pattern of both horizontal and vertical motion; object ultimately lost overhead; last seen heading east (Incident 212); ascending toward overhead, lost after turning north on US 25 (Incident 213) FIELD 10 -- BRIEF SUMMARY: [Record card is partially legible. From the maneuvers field, legible text reads: "Observed definite pattern of both horizontal and vertical." Color field reads: "Yellow-orange flare." Source field reads partially as "Naval Officer" or "Signal Officer." Full narrative from supplemental Incident Summary Sheets below.] Incident 212: Civilian observer (Siebenthaler Ave., near Stillwater Bridge) observed two pulses of light, each approximately 1/2 second duration, in northwest sky at 45 degrees elevation. Yellowish-white, irregular contour, appearing to ascend in an arc. Sky clear in object's vicinity; cloud layer on horizon. No planes visible at time. Incident 213: Two Navy Bureau of Aeronautics officers driving west on Needmore Road observed bright yellow- orange flame in sky, estimated 10 miles distant. Climbed at fairly high rate of speed. Disappeared sharply at intervals -- not gradually, but as if suddenly extinguished. Definite pattern of motion both horizontal and vertical confirmed after stopping car twice to rule out automobile motion. Object eventually ascending and lost overhead after turning north on US Highway 25. Observers estimated altitude in excess of 10,000 feet. FIELD 11 -- COMMENTS: [Not visible on record card. See supplemental analysis documents for evaluator commentary.] FIELD 12 -- CONCLUSIONS: [ ] Was balloon [ ] Probably balloon [ ] Possibly balloon [ ] Was aircraft [ ] Probably aircraft [ ] Possibly aircraft [ ] Was astronomical [ ] Probably astronomical [ ] Possibly astronomical [ ] Other: _______________ [X] Insufficient data for evaluation [ ] Unidentified [Note: Record card conclusion checkboxes not clearly legible. Classification derived from Dr. J. Allen Hynek's evaluation index extracted from the Project Grudge Report (included in this file): both Incident 212 and Incident 213 are listed under Category 3a, "Non-astronomical, with no explanation evident -- Lack of evidence precludes explanation."] Form: [Early Project Sign form -- predates ATIC FORM 329 REV 26 SEP 52. Incident Summary Sheet format used for formal write-ups; AMC Form 10-3 routing and record form used for inter-office coordination.] Supplemental docs: (1) Hand-drawn map, labeled "Project 'Sign' Incident No. 212," showing Siebenthaler Ave., Stillwater River, Catalpa Drive, Yolo Pike/Dixie Drive, observer position at Siebenthaler Ave bridge, and object location northwest of observer. (2) Memorandum, 7 Dec 1948, from Lt. G.G. Reeves, USN, BAGR-CD, to Technical Intelligence Division (MCIAXD-3), Attn: Capt. R.R. Sneider; describes Incident 213 from Reeves' perspective (Needmore Road, 1715, yellow-orange flame, ascending, intermittent). (3) Memorandum, 7 Dec 1948, from Lt. [REDACTED], USN, BAGR-CD, to Commanding General, Air Materiel Command, Attn: Col. McCoy; more detailed account of Incident 213 including two stops to rule out automobile motion, ram jet hypothesis, personal qualifications (41 years old, 24 years USN, 8 years Naval Aviation, Naval Aviation Observer). (4) AMC Form 10-3 routing slip dated 21 Dec 48 requesting MCRFO (Flight Operations) comment on domestic origin; response from Col. Donald P. Hall (Chief, Operations Subdivision, Flight Test Division) dated DEC 30 1948 citing Col. Albert Boyd's personal observation of a B-29 circling Patterson Field with landing lights at approximately 3,000 feet. (5) Incident Summary Sheet, Incident 212; narrative by investigating officer. (6) Incident narrative page, Incident 212 (signed statement). (7) Pencil sketch, Incident 212, showing irregular luminous form with feathered trailing element and direction arrows. (8) Analysis sheet: "Incident 212 -- Dayton, Ohio -- 3 December 1948" (evaluation notes, Sign/Grudge era). (9) Analysis sheet: "Incident 213 -- Dayton, Ohio -- 3 December 1948" (evaluation notes, Sign/Grudge era). (10) Air Weather Service comment on Incident 212 (from HQ AWS 11 May 1949 letter with Comments 173 thru 233): balloon possible. (11) Air Weather Service comment on Incident 213: NOT a weather balloon; definite motion pattern precludes it. (12) Dr. Hynek's evaluation index extracted from Project Grudge Report (two copies); both 212 and 213 in Category 3a. (13) HQ Air Weather Service letter, 11 May 1949, Andrews AFB, signed W.A. West, Lt. Col. USAF Adjutant General, recommending clarification of motion reporting procedures. ================================================================ SEARCH INDEX TERMS ================================================================ Dayton Ohio North-Riverdale Siebenthaler-Ave Needmore-Road Wagoner-Ford-Road Stillwater-River Patterson-Field 1948 December-3 6388466 incident-212 incident-213 Project-Sign Grudge twilight dusk ground-visual yellow-orange flame ram-jet rocket ascending feathered-trail blunt-top Navy Bureau-of-Aeronautics BAGR-CD Wright-Patterson Naval-Aviation-Observer Reeves Hall Boyd B-29 landing-lights Hynek insufficient-data lack-of-evidence weather-balloon AMC MCIA cleared-secret ================================================================ CASE ANALYSIS -- Claude Sonnet 4.6 ================================================================ THE OFFICIAL CONCLUSION ----------------------- Three separate evaluations were applied to this pair of incidents, and they conflict. Dr. Hynek, in his evaluation index extracted from the Project Grudge Report, placed both Incident 212 and Incident 213 in Category 3a: non-astronomical, lack of evidence precludes explanation. This is the most candid available evaluation. The Air Weather Service, reviewing the incidents against routine balloon ascents in May 1949, concluded that Incident 212 could potentially represent a defective balloon from the Indianapolis or Fort Wayne release (approximately three hours prior), with upper winds placing such a balloon over the Dayton area at the observed time. For Incident 213, the same AWS review concluded the opposite: the definite horizontal and vertical motion pattern described was not possible under existing wind flow conditions. Not a balloon. Col. Donald P. Hall (Chief, Operations Subdivision, Flight Test Division, Patterson Field) offered a third explanation in December 1948: Col. Albert Boyd personally observed a B-29 circling the Patterson Field area with both landing lights burning at approximately 3,000 feet altitude at the time of the sightings. Hall proposed that the observers may have seen these lights without being able to identify the aircraft due to dusk conditions. WHAT THE EVIDENCE SHOWS ----------------------- Two independent groups of observers, in different locations, reported unusual aerial phenomena at twilight on 3 December 1948 over the Dayton area. Incident 212 produced the thinner report: two half-second pulses of yellowish-white light in the northwest sky, at approximately 45 degrees elevation, appearing to ascend in an arc, observed from Siebenthaler Avenue near Stillwater Bridge by a single MCIA-cleared civilian government employee. The observer noted no planes visible in the area. The Grudge-era narrative states candidly: "not even a guess can be hazarded." Incident 213 is the richer account. Lt. G.G. Reeves and a second Navy lieutenant, both assigned to the Bureau of Aeronautics General Representative office at Wright- Patterson AFB, were driving west on Needmore Road when they observed a bright yellow-orange flame climbing in the sky ahead, estimated at ten miles distant. They stopped twice -- once at the Needmore/Wagoner Ford Road intersection, once at a railway embankment -- specifically to rule out the possibility that their own vehicle's motion was producing a false impression of movement in the object. After both stops, the definite pattern of motion, both horizontal and vertical, remained confirmed. The object disappeared sharply at intervals, not gradually as it would if occluded by cloud, but sharply, as if suddenly extinguished. It eventually ascended and was lost overhead after the observers turned north on US Highway 25. The senior observer's written account is notable for its precision. He was 41 years old, 24 years in the Navy, 8 years in Naval Aviation, a qualified Naval Aviation observer. He explicitly accounted for the possibility that the hidden sun reflecting off cloud layers through overcast gaps might explain the phenomenon -- and rejected it after their second stop. He estimated altitude in excess of 10,000 feet, with the ceiling somewhat less, allowing that the object might have been seen through the overcast with the aircraft itself invisible. His concluded opinion: a ram jet installation mounted as an auxiliary power plant on a Wright-Patterson test aircraft. POINTS OF INTEREST / WHAT GIVES ME PAUSE ----------------------------------------- The B-29 explanation from Col. Hall deserves scrutiny. A B-29 circling Patterson Field at 3,000 feet with landing lights burning would present to observers as two white landing lights moving in a predictable arc. What was reported was a yellow-orange flame climbing with distinct horizontal and vertical motion, disappearing sharply as if extinguished, and eventually lost overhead. Landing lights do not extinguish suddenly and reappear; they do not produce a flame color; and a B-29 at 3,000 feet in a holding pattern would not be seen climbing steadily to overhead over a period of several minutes from Needmore Road. The B-29 explanation is easy to offer and difficult to reconcile with the specific descriptions given. The ram jet hypothesis from the senior Navy observer is more coherent. Ram jet engines of the period, when cycled on and off, would produce exactly the described behavior: a visible exhaust flame appearing and extinguishing sharply, with color in the yellow-orange range, producing apparent vertical and horizontal motion as the aircraft moved. The location is consistent: the observers were northwest of Patterson Field, looking back in its general direction. December 1948 was well within the period of active jet propulsion research at Wright-Patterson. The difficulty is that this explanation, if correct, places a classified test aircraft in plain sight over a populated residential area at twilight, observed by a trained Naval Aviation observer who went to the trouble of writing a careful formal report about it. Col. Hall's B-29 counter-explanation may represent an attempt to provide a benign cover story for a test program rather than a genuine analysis. That is speculation, but it is worth noting that the counter- explanation was provided by the Flight Test Division -- the office that would have known what was flying. Hynek's category 3a placement -- "lack of evidence precludes explanation" -- is the honest institutional answer. The description in Incident 213 is inconsistent with meteor (minutes of observation, ascending), inconsistent with the moon (moon was in the southwest; object was northwest), inconsistent with weather balloon (definite motion pattern under existing wind conditions), and inconsistent with landing lights at 3,000 feet. What it is consistent with is a jet or ram jet engine exhaust at altitude, visible through gaps in an overcast sky, in an area where exactly such engines were being tested. The proximity of Wright-Patterson is the inescapable context. These observers were Wright-Patterson personnel. They were looking at the sky above Wright-Patterson's operational area. One of them proposed Wright-Patterson as the origin. The counter-explanation came from Wright-Patterson's Flight Test Division. Whatever was in the sky that evening, the base knew its own backyard. BOTTOM LINE ----------- The B-29 with landing lights does not account for the specific observations made by experienced Naval Aviation personnel who stopped their vehicle twice to rule out alternative explanations before committing to a written report. Hynek's "lack of evidence precludes explanation" is fair but understates what the evidence does show: something with ram jet or rocket characteristics, moving with a definite flight pattern, within close visual range of Wright-Patterson AFB, on an evening when the Flight Test Division had at least one aircraft (the B-29, per Boyd) known to be in the air nearby. Whether the unexplained object and the B-29 were the same aircraft, a second aircraft, or something else entirely, the record does not say. What the record says is that a Naval Aviation observer with 24 years of service wrote a careful, methodical report, proposed a specific and plausible technical explanation, and was answered with a counter-explanation that does not fit the description he gave. ================================================================ https://glitchymatrix.com/bluebook/ GlitchyMatrix Project Blue Book Archive All 10,808 declassified USAF UFO case files, 1945-1969 ================================================================ ----------------------------------------------------------------