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Monday, March 5, 2012

Ufo's - The landmark RB-47 1957 case (Best of the Best)

Ufo's - The landmark RB-47 1957 case (Best of the Best)

The RB-47 radar visual multiple witnesses cases, July 17, 1957:

http://web.archive.org/web/20090427152524/http://ufologie.net/htm/rb47.htm

An Air Force Boeing Stratojet reconnaissance jet RB-47, equipped with electronic countermeasures gear and manned by six officers, was followed by an unidentified object for a distance of well over 700 miles, and for a time period of more than one hour, as it flew from Mississippi, through Louisiana and Texas and into Oklahoma. The object was, at various times, seen visually by the cockpit crew as an intensely luminous light, followed by ground-radar and detected on ECM monitoring gear aboard the RB-47. Of special interest in this case are several instances of simultaneous appearances and disappearances on all three of those physically distinct observation channels, and rapidity of maneuvers beyond aircraft possibilities.

RB-47

TABLE OF CONTENT:

    Click! The case summary.
    Click! Case study by James E. McDonald.
    Click! Case story by James E. McDonald for the UFO committee of the AIAA.
    Click! About the RB-47.
    Click! References.

THE CASE SUMMARY:

On board an RB-47H aircraft equipped with sophisticated electronic countermeasures equipment, including three electronic intelligence (ELINT) stations over the Gulf of Mexico.
The crew consisted of:
Major Lewis D. Chase, pilot, Spokane, WA
Capt. James H. McCoid, copilot, Offutt AFB
Capt. Thomas H. Hanley, navigator, Vandenberg AFB
John J. Provenzano, No. 1 monitor, Wichita, KS
Capt. Frank B. McClure, No. 2 monitor, Offutt AFB
Capt. Walter A. Tuchschner, No. 3 monitor, Topeka, KS
These six men were on a training and test exercise in an RB-47H electronic countermeasures reconnaissance aircraft. The RB-47, while originally developed as a bomber, was also used extensively as a reconnaissance aircraft. One was shot down by the Soviet Union while on such a mission in 1960.
This particular mission began at Forbes AFB, Topeka, Kansas as an exercise including gunnery exercises over the Texas-Gulf area, navigation exercises over the open Gulf, and Electronic Countermeasures exercises on the return trip across the south-central U.S. The men participating were soon to depart for Germany and duty there. It should be noted that the ECM equipment was not radar. It did not emit a signal and then pick up reflected echoes off of an object. Rather, it detected electromagnetic signals that were actually emitted by an object itself. The purpose of this was to detect and locate enemy radar installations. On this aircraft, the #2 monitor consisted of a direction finder with antenna on the lower rear of the aircraft, and the #1 monitor consisted of a direction finder with antennas on each wingtip of the aircraft. The #3 monitor was not involved in the events of July 17, because its range did not include the frequencies involved.
The first contact with the unknown was before 4:00 AM CST. The first two parts of the mission had been completed, and the aircraft was just leaving the airspace over the Gulf of Mexico near Gulfport, Mississippi, when Frank McClure, on the #2 ECM monitor, detected an airborne signal to the right rear of the aircraft, out over the Gulf of Mexico. The signal was of a type usually confined to ground-based radar installations. It was at 2800 megacycles, a common frequency for S-band search radar. McClure at first thought that his scope must be 180° out of alignment and that he must be picking up a ground-based radar station in Louisiana, which would actually be to the left front of the aircraft. As he watched, the signal moved up the scope, as it would if the scope was 180° out of alignment. However, he was amazed to see that, after it had moved up the scope on the right-hand side of the aircraft, it then crossed the path of the RB-47 and proceeded to move down the scope on the left-hand side. In other words, whatever was emitting the signal flew a ring around the RB-47, which was flying at approximately 500 miles per hour. Even if the scope was 180° out of alignment, the signal source still moved completely around the aircraft, which no ground radar could do. McClure said and did nothing at this time, not mentioning the signal to the other crewmembers. The signal faded as they flew north.
The RB-47 made a scheduled turn to the west over Jackson, Mississippi and the crew was preparing to begin a series of simulated ECM operations against Air Force ground radar units, when suddenly the pilot, Lewis Chase, saw a light coming in from the left, at approximately the same altitude as the RB-47. At first he thought it was another plane, but it was only a single white light, closing fast. He gave the command to prepare for evasive maneuvers, but the light flashed across from left to right so fast that no such action could have been taken. It then blinked out at a point to the right front of the aircraft. Both Chase and Copilot James McCoid observed this. At this point, approximately 4:10 AM CST, they were approximately over Winnsboro, Louisiana.
Chase told the other crewmembers what he had seen, and McClure now told him about his earlier signal reading. At 4:30 AM, McClure set his scope to detect signals near 3000 mcs again, and he detected a strong signal at the same location in relation to the RB-47 that Chase had last seen the light. He and Provenzano checked the alignment of the #2 monitor by tuning in on known ground radar installations and found it to be in perfect working order. At 4:30 AM, Provenzano tuned his own monitor, #1, to 3000 mcs, and found that his equipment detected a signal at the same location. What's more, he and McClure found that the signal was staying in the same position, keeping pace with the RB-47, which was still flying at 500 miles per hour. This meant that it was not a signal from a ground-based radar.
By this time they had reached the Duncanville, Texas area. At 4:39, Chase spotted a huge light to the right front of the RB-47 an about 5,000 feet below the aircraft's 34,500 feet altitude. The weather was perfectly clear. At 4:40, McClure reported two signals, at 40° and 70°. Chase and McCoid reported seeing red lights at those locations. Chase contacted radar Station Utah at Duncanville, Texas and requested permission to abandon his flight plan and pursue the lights, which he received. At 4:48 AM, radar station Utah requested the position of the signals that McClure was receiving, and they immediately confirmed that their radar had detected the objects at the same location.
As the RB-47 attempted to pursue, the object appeared to stop suddenly. Chase could see that they were gaining on it, and they over shot it. At 4:52 it blinked out, and simultaneously vanished from McClure's scope and the ground radar! Chase put the aircraft into a port turn, and the object suddenly blinked on again, simultaneously reappearing on McClure's scope and the ground radar at 4:52! They began to close to within 5 miles of the object, when it suddenly dropped to 15,000 feet and then blinked out again, once again vanishing from the scopes and ground radar. At 4:55, Chase radioed Utah radar station that they had to break of pursuit and continue with their scheduled flight plan due to low fuel. At 4:57 McClure picked up the signal again, and at 4:58 Chase made visual contact again. As they headed into Oklahoma, McClure continued to receive a signal, now from the rear of the aircraft, until it finally faded as they neared Oklahoma City. The Director of Intelligence, 55th Strategic Reconnaissance Wing, stated in his report that he had: "...no doubt the electronic D/F's coincided exactly with visual observations by aircraft commander numerous times, thus indicating positively the object being the signal source."
What can be detected on ECM direction finding devices, can be seen visually, and can be detected on ordinary ground-based radar all at the same time? What can be detected by all the sensors and can also fly rings around a jet travelling at 500 miles per hour?
Project Bluebook said that the sightings in Dallas - Fort Worth area were an ordinary jet airliner. They actually simply confused or voluntarily confused the case with a totally different incident implying a quasi-collision between civilian flights 966 and 655 of American Airlines, which flew above Texas at more than 1000 kilometers away from the RB-47. They couldn't explain the abrupt, simultaneous disappearance and reappearance of the object from radar screens, ECM scopes, and visual detection. They also couldn't explain the events that occurred over Mississippi and Louisiana. They couldn't explain how the Utah radar station could not have told an airliner from an unknown.

Above: Blue Book file card for the case.
The Condon Committee toyed with several explanations, but found none to be satisfactory, finally classifying this case as unknown. In fact, Condon's radar case specialist Gordon L. Thayer said that the Blue Book explanation that the case was due to airliners was "literally ridiculous." The self proclaimed UFO debunker Philipp Klass, not discouraged by his previous ridicule explanation of UFOs as plasmoids which was pointed at as typical pseudoscience wishful thinking by Dr. McDonald, considered that the electronic tracks were due to anomalous radar wave propagation and that the visual sighting was first a meteor, then the star Vega and finally the other planes from American Airlines cited by Blue Book; the long demonstrated ridicule of this explanation apparently did not came up to his mind. Ufologist Brad Sparks, a specialist of aeronautics, responded point by point in a paper in Jerome Clark's UFO Encyclopedia and demonstrated how Klass' interpretation was based on the erroneous interpretation of the data and overall nonsensical.

Map by the crew:

This is the flightpath of the RB-47 (dotted line) and of the UFO (plain line), drawn on their formal report by the captain of the crew. 




PROFESSOR JAMES MCDONALD:

The following study is excerpted from "Twenty-Two Years of Inadequate UFO Investigations" American Association for the Advancement of Science, 134th Meeting, General Symposium, Unidentified Flying Objects, by James E. McDonald, Professor of Atmospheric Sciences, the University of Arizona, Tucson, Arizona, December 27, 1969.

Case 1. USAF RB-47, Gulf Coast area, September 19-20, 1957.

Brief summary:
An Air Force RB-47, equipped with ECM (Electronic Countermeasures) gear, manned by six officers, was followed over a total distance in excess of 600 miles and for a time period of more than an hour, as it flew from near Gulfport, Miss., through Louisiana and Texas, and into southern Oklahoma. The unidentified object was, at various times, seen visually by the cockpit crew (as an intense white or red light), followed by ground-radar, and detected on ECM monitoring gear aboard the RB-47. Simultaneous appearances and disappearances on all three of those physically distinct "channels" mark this UFO case as especially intriguing from a scientific viewpoint. The incident is described as Case 5 in the Condon Report and is conceded to be unexplained. The full details, however, are not presented in that Report.
1. Summary of the Case:
The case is long and involved and filled with well-attested phenomena that defy easy explanation in terms of present-day science and technology. The RB-47 was flying out of Forbes AFB, Topeka, on a composite mission including gunnery exercises over the Texas-Gulf area, navigation exercises over the open Gulf, and ECM exercises in the return trip across the south-central U.S. This was an RB-47 carrying a six-man crew, of whom three were electronic warfare officers manning ECM (Electronic counter-measures) gear in the aft portion of the aircraft. One of the extremely interesting aspects of this case is that electromagnetic signals of distinctly radar-like character appeared definitely to be emitted by the UFO, yet it exhibited performance characteristics that seem to rule out categorically its having been any conventional or secret aircraft.
I have discussed the incident with all six officers of the crew:

  • Lewis D. Chase, pilot, Spokane, Wash.
  • James H. McCoid, copilot, Offutt AFB.
  • Thomas H. Hanley, navigator, Vandenberg AFB.
  • John J. Provenzano, No. 1 monitor, Wichita.
  • Frank B. McClure, No. 2 monitor, Offutt AFB.
  • Walter A. Tuchscherer, No. 3 monitor, Topeka.
Chase was a Major at the time; I failed to ask for information on 1957 ranks of the others. McClure and Hanley are currently Majors, so might have been Captains or Lieutenants in 1957. All were experienced men at the time. Condon Project investigators only talked with Chase, McCoid, and McClure, I ascertained. In my checking it proved necessary to telephone several of them more than once to pin down key points; nevertheless the total case is so complex that I would assume that there are still salient points not clarified either by the Colorado investigators or by myself. Unfortunately, there appears to be no way, at present to locate the personnel involved in ground- radar observations that are a very important part of the whole case. I shall discuss that point below.
This flight occurred in September, 1957, just prior to the crew's reassignment to a European base. On questioning by Colorado investigators, flight logs were consulted, and based on the recollection that this flight was within a short time of departure from Forces to Germany, (plus the requirement that the date match a flight of the known type and geography) the 9/19/57 date seems to have emerged. The uncertainty as to whether it was early on the 19th or early on the 20th, cited above is a point of confusion I had not noted until preparing the present notes. Hence I am unable to add any clarification, at the moment; in this matter of the date confusion found in Thayer's discussion of the case (1, pp. 136-138). I shall try to check that in the near future. For the present, it does not vitiate case-discussion in any significant way.
The incident is most inadequately described in the Condon Report. The reader is left with the general notion that the important parts occurred near Ft. Worth, an impression strengthened by the fact that both Crow and Thayer discuss meteorological data only for that area. One is also left with no clear impression of the duration, which was actually over an hour. The incident involved an unknown airborne object that stayed with the RB-47 for over 600 miles. In case after case in the Condon Report, close checking reveals that quite significant features of the cases have been glossed over, or omitted, or in some instances seriously misrepresented. I submit that to fail to inform the reader that this particular case spans a total distance-range of some 600 miles and lasted well over an hour is an omission difficult to justify.
From my nine separate interviews with the six crew members, I assembled a picture of the events that makes it even more puzzling than it seems on reading the Condon Report - and even the latter account is puzzling enough.
Just as the aircraft crossed the Mississippi coast near Gulfport, McClure, manning the #2 monitor, detected a signal near their 5 o'clock position (aft of the starboard beam). It looked to him like a legitimate ground-radar signal, but corresponded to a position out in the Gulf. This is the actual beginning of the complete incident; but before proceeding with details it is necessary to make quite clear what kind of equipment we shall be talking about as we follow McClure's successive observations.
Under conditions of war, bombing aircraft entering hostile territory can be assisted in their penetrations if any of a variety of electronic countermeasures (ECM techniques as they are collectively termed) are brought into action against ground-based enemy radar units. The initial step in all ECM operations is, necessarily, that of detecting the enemy radar and quantitatively identifying a number of relevant features of the radar system (carrier frequency, pulse repetition frequency, scan rate, pulse width) and, above all, its bearing relative to the aircraft heading. The latter task is particularly ample in principle, calling only for direction-finding antennas which pick up the enemy signal and display on a monitor scope inside the reconnaissance aircraft a blip or lobe that paints in the relative bearing from which the signal is coming.
The ECM gear used in RB-47's in 1957 is not now classified; the #2 monitor that McClure was on, he and the others pointed out, involved an ALA-6 direction-finder with back-to-back antennas in a housing on the undersurface of the RB-47 near the rear, spun at either 150 or 300 rpm as it scanned in azimuth. Inside the aircraft, its signals were processed in an APR-9 radar receiver and an ALA-5 pulse analyzer. All later references to the #2 monitor imply that system. The #1 monitor employed an APD-4 direction finding system, with a pair of antennas permanently mounted on either wing tip. Provenzano was on the #1 monitor. Tuchscherer was on the #3 monitor, whose specifications I did not ascertain because I could find no indication that it was involved in the observations.
Returning now to the initial features of the UFO episode, McClure at first thought he had 180-degree ambiguity in his scope, i.e., that the signal whose lobe painted at his 5 o'clock position was actually coming in from the 11 o'clock position perhaps from some ground radar in Louisiana. This suspicion, he told me, was temporarily strengthened as he became aware that the lobe was moving upscope. (It is important here and in features of the case cited below to understand how a fixed ground-radar paints on the ECM monitor scope as the reconnaissance aircraft flies toward its general direction: Suppose the ground radar is, at some instant, located at the 1 o'clock position relative to the moving aircraft, i.e., slightly off the starboard bow. As the aircraft flies along, the relative bearing steadily changes, so that the fixed ground unit is "seen" successively at the 2 o'clock, the 3 o'clock, and the 4 o'clock positions, etc. The lobe paints on the monitor scope at these successive relative azimuths, the 12 o'clock position being at the top of the scope, 3 o'clock at the right, etc. Thus any legitimate signal from a fixed ground radar must move downscope, excluding the special cases in which the radar is dead ahead or dead astern. Note carefully that we deal here only with direction finding gear. Range is unknown; we are not here speaking of an airborne radar set, just a radar-frequency direction-finder. In practice, range is obtained by triangulation computations based on successive fixes and known aircraft speed.)
As the lobe continued moving upscope, McClure said the strength of the incoming signal and its pulse characteristics all tended to confirm that this was some ground unit being painted with 180-degree ambiguity for some unknown electronic reason. It was at 2800 megacycles, a common frequency for S-band search radars.
However, after the lobe swung dead ahead, his earlier hypothesis had to be abandoned for it continued swinging over to the 11 o'clock position and continued downscope on the port side. Clearly, no 180-degree ambiguity was capable of accounting for this. Curiously, however, this was so anomalous that McClure did not take it very seriously and did not at that juncture mention it to the cockpit crew nor to his colleagues on the other two monitors. This upscope-downscope "orbit" of the unknown was seen only on the ALA-6, as far as I could establish. Had nothing else occurred, this first and very significant portion of the whole episode would almost certainly have been for gotten by McClure.
The signal faded as the RB-47 headed northward to the scheduled turning point over Jackson, Miss. The mission called for simulated detection and ECM operations against Air Force ground radar units all along this part of the flight plan, but other developments intervened. Shortly after making their turn westward over Jackson, Miss., Chase noted what he thought at first were the landing lights of some other jet coming in from near his 11 o'clock position, at roughly the RB-47's altitude. But no running lights were discernible and it was a single very bright white light, closing fast. He had just alerted the rest of the crew to be ready for sudden evasive maneuvers, when he and McCoid saw the light almost instantaneously change directions and rush across from left to right at an angular velocity that Chase told me he'd never seen matched in his flight experience. The light went from their 11 o'clock to the 2 o'clock position with great rapidity, and then blinked out.
Immediately after that, Chase and McCoid began talking about it on the interphone and McClure, recalling the unusual 2800 megacycle signal that he had seen over Gulfport now mentioned that peculiar incident for the first time to Chase and McCoid. It occurred to him at that point to set his #2 monitor to scan at 2800 mcs. On the first scan, McClure told me, he got a strong 2800 mcs signal from their 2 o'clock position, the bearing on which the luminous unknown object had blinked out moments earlier.
Provenzano told me that right after that they had checked out the #2 monitor on valid ground radar stations to be sure it was not malfunctioning and it appeared to be in perfect order. He then checked on his #1 monitor and also got a signal from the same bearing. There remained, of course, the possibility that just by chance, this signal was from a real radar down on the ground and off in that direction. But as the minutes went by, and the aircraft continued westward at about 500 kts. The relative bearing of the 2800 mcs source did not move downscope on the #2 monitor, but kept up with them.
This quickly led to a situation in which the entire 6-man crew focussed all attention on the matter; the incident is still vivid in the minds of all the men, though their recollection for various details varies with the particular activities they were engaged in. Chase varied speed, to see if the relative bearing would change but nothing altered. After over a hundred miles of this, with the 2800 mcs source keeping pace with the aircraft, they were getting into the radar-coverage area of the Carswell AFB GCI (Ground Controlled Intercept) unit and Chase radioed that unit to ask if they showed any other air traffic near the RB-47. Carswell GCI immediately came back with the information that there was apparently another aircraft about 10 miles from them at their 2 o'clock position. (The RB-47 was unambiguously identifiable by its IFF signal; the "other aircraft" was seen by "skin paint" Only, i.e., by direct radar reflection rather than via an IFF transponder, Col. Chase explained.)
This information, each of the men emphasized to me in one way or another, made them a bit uneasy for the first time. I asked McClure a question that the Colorado investigators either failed to ask or did not summarize in their Report. Was the signal in all respects comparable to that of a typical ground radar? McClure told me that this was what baffled him the most, then and now. All the radar signature characteristics, as read out on his ALA-5 pulse analyzer, were completely normal - it had a pulse repetition frequency and pulse width like a CPS-6B and even simulated a scan rate: But its intensity, McClure pointed out, was so strong that "it would have to had an antenna bigger than a bomber to put out that much signal." And now, the implications of the events over Gulfport took on new meaning. The upscope-downscope sweep of his #2 monitor lobe implied that this source, presuming it to be the same one now also being seen on ground radar at Carswell GCI, had flown a circle around the RB-47 at 30-35,000 ft altitude while the aircraft was doing about 500 kts.
Shortly after Carswell GCI began following the two targets, RB-47 and unknown, still another significant action unfolded. McClure suddenly noted the lobe on the #2 monitor was beginning to go upscope, and almost simultaneously, Chase told me, GCI called out that the second airborne target was starting to move forward. Keep in mind that no visual target was observable here; after blinking out at the 12 o'clock position, following its lightning-like traverse across the nose of the aircraft, no light had been visible. The unknown now proceeded to move steadily around to the 12 o'clock position, followed all the while on the #2 monitor and on the GCI scope down at Carswell near Ft. Worth.
As soon as the unknown reached the 12 o'clock position, Chase and McCoid suddenly saw a bright red glow "bigger than a house", Chase said, and lying dead ahead, precisely the bearing shown on the passive radar direction-finder that McClure was on and precisely the bearing now indicated on the GCI scope. _Three independent sensing systems_ were at this juncture giving seemingly consistent-indications: two pairs of human eyes, a ground radar, and a direction-finding radar receiver in the aircraft.
One of the important points not settled by the Colorado investigations concerned the question of whether the unknown was ever painted on any radar set on the RB-47 itself. Some of the men thought the navigator had seen it on his set, others were unsure. I eventually located Maj. Hanley at Vandenberg and he informed me that all through the incident, which he remembered very well, he tried, unsuccessfully to pick up the unknown on his navigational radar (K-system). I shall not recount all of the details of his efforts and his comments, but only mention the end result of my two telephone interviews with him. The important question was what sort of effective range that set had. Hanley gave the pertinent information that it could just pick up a large tanker of the KC-97 type at about 4 miles range, when used in the "altitude- hold" mode, with antenna tipped up to maximum elevation. But both at the start of its involvement and during the object's swing into the 12 o'clock position, GCI showed it remaining close to 10 miles in range from the RB-47. Thus Hanley's inability to detect it on his K-system navigational radar in altitude hold only implies that whatever was out there had a radar cross-section that was less than about 16 times that of a KC-97 (roughly twice 4 miles, inverse 4th-power law), The unknown gave a GCI return that suggested a cross-section comparable to an ordinary aircraft, Chase told me, which is consistent with Hanley's non-detection of the object. The Condon Report gives the impression the navigator did detect it, but this is not correct.
I have in my files many pages of typed notes on my interviews, and cannot fill in all of the intriguing details here. Suffice it to say that Chase then went to maximum allowable power, hoping to close with the unknown, but it just stayed ahead at about 10 miles as GCI kept telling them; it stayed as a bright red light dead ahead, and it kept painting as a bright lobe on the top of McClure's ALA-6 scope. By this time they were well into Texas still at about 35,000 ft and doing upwards of 500 knots, when Chase saw it begin to veer to the right and head between Dallas and Ft. Worth. Getting FAA clearance to alter his own flight plan and to make sure other jet traffic was out of his way, he followed its turn, and then realized he was beginning to close on it for the first time. Almost immediately GCI told him the unknown had stopped moving on the ground-radarscope. Chase and McCoid watched as they came almost up to it. Chase's recollections on this segment of the events were distinctly clearer than McCoid's. McCoid was, of course, sitting aft of Chase and had the poorer view; also he said he was doing fuel-reserve calculations in view of the excess fuel-use in their efforts to shake the unknown, and had to look up from the lighted cockpit to try to look out intermittently, while Chase in the forward seat was able to keep it in sight more nearly continuously. Chase told me that he'd estimate that it was just ahead of the RB-47 and definitely below them when it instantaneously blinked out, At that same moment McClure announced on the interphone that he'd lost the 2800 mcs signal, and GCI said it had disappeared from their scope. Such simultaneous loss of signal on what we can term three separate channels is most provocative, most puzzling.
Putting the aircraft into a left turn (which Chase noted consumes about 15-20 miles at top speed), they kept looking back to try to see the light again. And, about halfway through the turn (by then the aircraft had reached the vicinity of Mineral Wells, Texas, Chase said), the men in the cockpit suddenly saw the bright red light flash on again, back along their previous flight path but distinctly lower, and simultaneously GCI got a target again and McClure started picking up a 2800 mcs signal at that bearing: (As I heard one after another of these men describe all this, I kept trying to imagine how it was possible that Condon could listen, at the October, 1967, plasma conference at the UFO Project, as Col. Chase recounted all this and shrug his shoulders and walk out.)
Securing permission from Carswell GCI to undertake the decidedly non- standard maneuver of diving on the unknown, Chase put the RB-47 nose down and had reached about 20,000 ft, he recalls, when all of a sudden the light blinked out, GCI lost it on their scope, and McClure reported loss of signal on the #2 monitor: Three-channel consistency once more.
Low on fuel, Chase climbed back up to 25,000 and headed north for Oklahoma. He barely had it on homeward course when McClure got a blip dead astern and Carswell radioed that they had a target once more trailing the RB- 47 at about 10 miles. Rear visibility from the top blisters of the RB-4 now precluded easy visual check, particularly if the unknown was then at lower altitude (Chase estimated that it might have been near 15,000 ft when he lost it in the dive). It followed them to southern Oklahoma and then disappeared.
2. Discussion:
This incident is an especially good example of a UFO case in which observer credibility and reliability do not come into serious question, a case in which more than one (here three) channel of information figures in the over-all observations, and a case in which the reported phenomena appear to defy explanation in terms of either natural or technological phenomena.
In the Condon Report, the important initial incident in which the unknown 2800 MC source appeared to orbit the RB-47 near Gulfport is omitted. In the Condon Report, the reader is given no hint that the object was with the aircraft for over 600 miles and for over an hour. No clear sequence of these events is spelled out, nor is the reader made aware of all of the "three-channel" simultaneous appearances or disappearances that were so emphatically stressed to me by both Chase and McClure in my interviews with them. But even despite those degrees of incompleteness, any reader of the account of this case in the Condon Report must wonder that an incident of this sort could be left as unexplained and yet ultimately treated, along with the other unexplained cases in that Report, as calling for no further scientific attention.
Actually, various hypotheses (radar anomalies, mirage effects) are weighed in one part of the Condon Report where this case is discussed separately (pp. 136-138). But the suggestion made there that perhaps an inversion near 2 km altitude was responsible for the returns at the Carswell GCI unit is wholly untenable. In an Appendix, a very lengthy but non-relevant discussion of ground return from anomalous propagation appears; in fact, it is so unrelated to the actual circumstances of this case as to warrant no comment here. Chase's account emphasized that the GCI radar(s) had his aircraft and the unknown object on-scope for a total flight-distance of the order of several hundred miles, including a near overflight of the ground radar. With such wide variations in angles of incidence of the ground-radar beam on any inversion or duct, however intense, the possibility of anomalous propagation effects yielding a consistent pattern of spurious echo matching the reported movements and the appearances and disappearances of the target is infinitesimal. And the more so in view of the simultaneous appearances and disappearances on the ECM gear and via visible emissions from the unknown. To suggest, as is tentatively done on p. 138 that the "red glow" might have been a "mirage of Oklahoma City", when the pilot's description of the luminous source involves a wide range of viewing angles, including two instances when he was viewing it at quite large depression angles, is wholly unreasonable. Unfortunately, that kind of casual ad hoc hypothesizing with almost no attention to relevant physical considerations runs all through the case-discussions in the treatment of radar and optical cases in the Condon Report, frequently (though not in this instance) being made the basis of "explanations" that are merely absurd. On p. 265 of the Report, the question of whether this incident might be explained in terms of any "plasma effect" is considered but rejected. In the end, this case is conceded to be unexplained.
No evidence that a report on this event reached Project Bluebook was found by the Colorado investigators. That may seem hard to believe for those who are under the impression that the Air Force has been diligently and exhaustively investigating UFO reports over the past 22 years. But to those who have examined more closely the actual levels of investigation, lack of a report on this incident is not so surprising. Other comparable instances could he cited, and still more where the military aircrews elected to spare themselves the bother of interrogation, by not even reporting events about as puzzling as those found in this RB-47 incident.
But what is of greatest present interest is the point that here we have a well-reported, multi-channel, multiple-witness UFO report, coming in fact from within the Air Force itself, investigated by the Condon Report team, conceded to be unexplained, and yet it is, in final analysis, ignored by Dr. Condon. In no section of the Report specifically written by the principal investigator does he even allude to this intriguing case. My question is how such events can be written off as demanding no further scientific study. To me, such cases seem to cry out for the most intensive scientific study - and the more so because they are actually so much more numerous than the scientific community yet realizes. There is a scientific mystery here that is being ignored and shoved under the rug; the strongest and most unjustified shove has come from the Condon Report. "unjustified" because that Report itself contains so many scientifically puzzling unexplained cases (approximately 30 out of 90 cases considered) that it is extremely difficult to understand how its principal investigator could have construed the contents of the Report as supporting a view that UFO studies should be terminated.

ABOUT THE RB-47:

The B-47 "Stratojet" was the first all-jet operational bomber in the Air Force and was the backbone of the Strategic Air Command bomber fleet in the 1950s. It was a medium range bomber that could be refueled in flight manufactured by Boeing Aircraft Company (primary), Douglas and Lockheed. It had 6 General Electric J-47-GE-25 turbojet engines, a maximum speed of 600 miles per hour, and a range of 4000 miles.
The RB-47E was the photomapping, weather and electronic reconnaissance version of the B-47 and was also one of its best versions; it first flew July 1953. It was designed to check weather along projected bombing routes, photograph enemy installations and monitor defensive radar systems during the period 1954 to 1964. It was used in missions above North Korea, China, and also over the Soviet Union for the most sensitive reconnaissance missions of the Cold War.
RB-47


REFERENCES:


  • Project Blue Book case file #10073, National Archives and Record Administration (NARA, www.nara.gov), Washington D.C., files of 1957.
  • ""Statement on Unidentified Flying Objects" by James McDonald Submitted to the House Committee on Science and Astronautics on July 29, 1968.
  • "AIAA Committee Looks at UFO Problem", AIAA UFO Subcommittee, Astronautics and Aeronautics, p. 12, December 1968.
  • "Optical and radar analyses of field cases" by Gordon D. Thayer, 1969, in "Final report of the scientific study of unidentified flying objects" aka "The Condon Report", by Edward U. Condon and E.P. Dutton et al., New York, Library of Congress Catalog No. 73-77914, 1969.
  • "Twenty-Two Years of Inadequate UFO Investigations", by James E. McDonald, American Association for the Advancement of Science, 134th Meeting, General Symposium, Unidentified Flying Objects, by James E. McDonald, Professor of Atmospheric Sciences, the University of Arizona, Tucson, Arizona, December 27, 1969, reprinted in "UFOs, a scientific debate", edited by Carl Sagan and Thornton Page, Cornell University Press, Ithaca, New York, 1972.
  • "Meteorological Factors in Unidentified Radar Returns", paper Presented at the 14th Radar Meteorology Conference American Meteorological Society November 17-20, James E. McDonald The University of Arizona Tucson, Arizona, 1970.
  • "The RB-47 UFO Case - A New Explanation", self-published article by Philipp Klass, 1971, reprinted in his book "UFOs Explained", Random House, New York, ISBN 0-394-72106-3, 1974.
  • "UFO Encounter I Sample Case", case selected by the UFO Subcommittee of the AIAA Astronautics and Aeronautics, July, 1971, pp. 66-70. Dr. James E. McDonald.
  • "UFOs: A Scientific Debate", edited by Carl Sagan and Thornton Page, "a collection of evidence and opinion from both sides", Norton publisher, ISBN 0-39300-739-1, 1974
  • "RB-47 radar/visual sighting", article by Gordon D. Thayer, in the book "The encyclopedia of UFOs", edited by Ronald D. Story, Doubleday and co, New York, 1980.
  • "UFOs: An insider's view of the official quest for evidence", by Roy Craig, University of North Texas Press, Denton, Texas, ISBN 0-929398-94-7, 1995.
  • "The UFO Book", by Jerome Clark, pp. 505-509, Visible Ink, New York, ISBN 1-57859-029-9, 1998.
  • "L'affaire du RB-47", by Dominique Weinstein, in "OVNI USA", hors série VSD magazine, pp 32-33, July 2001.
  • "Les OVNIS et la défense - A quoi doit-on se préparer", book by association Cometa, pp. 40-44, Editions du Rocher, ISBN 2-268-04592-7, France, 1999.

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