The Report on Unidentified Flying Objects: A Study of UFOs by United States. Edward J. Ruppelt
the same spot in the sky as the UFO. Dr. Hynek referred to his notes and told me that at 3:00P.M., Venus had been south southwest of Godman and 33 degrees above the southern horizon. At 3:00P.M. the people in the tower estimated the UFO to be southwest of Godman and at an elevation of about 45 degrees. Allowing for human error in estimating directions and angles, this was close. I agreed. There was one big flaw in the theory, however. Venus wasn't bright enough to be seen. He had computed the brilliance of the planet, and on the day in question it was only six times as bright as the surrounding sky. Then he explained what this meant. Six times may sound like a lot, but it isn't. When you start looking for a pinpoint of light only six times as bright as the surrounding sky, it's almost impossible to find it, even on a clear day.
Dr. Hynek said that he didn't think that the UFO was Venus.
I later found out that although it was a relatively clear day there was considerable haze.
I asked him about some of the other possibilities. He repeated the balloon, canopy-reflection, and sundog theories but he refused to comment on them since, as he said, he was an astrophysicist and would care to comment only on the astrophysical aspects of the sightings.
I drove back to Dayton convinced that the UFO wasn't Venus. Dr. Hynek had said Venus would have been a pinpoint of light. The people in the tower had been positive of their descriptions, their statements brought that out. They couldn't agree on a description, they called the UFO "a parachute," "an ice cream cone tipped with red," "round and white," "huge and silver or metallic," "a small white object," "one fourth the size of the full moon," but all the descriptions plainly indicated a large object. None of the descriptions could even vaguely be called a pinpoint of light.
This aspect of a definite shape seemed to eliminate the sundog theory too. Sundogs, or parhelia, as they are technically known, are caused by ice particles reflecting a diffused light. This would not give a sharp outline. I also recalled two instances where Air Force pilots had chased sundogs. In both instances when the aircraft began to climb, the sundog disappeared. This was because the angle of reflection changed as the airplane climbed several thousand feet. These sundog-caused UFO's also had fuzzy edges.
I had always heard a lot of wild speculation about the condition of Mantell's crashed F-51, so I wired for a copy of the accident report. It arrived several days after my visit with Dr. Hynek. The report said that the F-51 had lost a wing due to excessive speed in a dive after Mantell had "blacked out" due to the lack of oxygen. Mantell's body had not burned, not disintegrated, and was not full of holes; the wreck was not radioactive, nor was it magnetized.
One very important and pertinent question remained. Why did Mantell, an experienced pilot, try to go to 20,000 feet when he didn't even have an oxygen mask? If he had run out of oxygen, it would have been different Every pilot and crewman has it pounded into him, "Do not, under any circumstances, go above 15,000 feet without oxygen." In high-altitude indoctrination during World War II, I made several trips up to 30,000 feet in a pressure chamber. To demonstrate anoxia we would leave our oxygen masks off until we became dizzy. A few of the more hardy souls could get to 15,000 feet, but nobody ever got over 17,000. Possibly Mantell thought he could climb up to 20,000 in a hurry and get back down before he got anoxia and blacked out, but this would be a foolish chance. This point was covered in the sighting report. A long-time friend of Mantell's went on record as saying that he'd flown with him several years and knew him personally. He couldn't conceive of Mantell's even thinking about disregarding his lack of oxygen. Mantell was one of the most cautious pilots he knew. "The only thing I can think," he commented, "was that he was after something that he believed to be more important than his life or his family."
My next step was to try to find out what Mantell's wing men had seen or thought but this was a blind alley. All of this evidence was in the ruined portion of the microfilm, even their names were missing. The only reference I could find to them was a vague passage indicating they hadn't seen anything.
I concentrated on the canopy-reflection theory. It is widely believed that many flying saucers appear to pilots who are actually chasing a reflection on their canopy. I checked over all the reports we had on file. I couldn't find one that had been written off for this reason. I dug back into my own flying experience and talked to a dozen pilots. All of us had momentarily been startled by a reflection on the aircraft's canopy or wing, but in a second or two it had been obvious that it was a reflection. Mantell chased the object for at least fifteen to twenty minutes, and it is inconceivable that he wouldn't realize in that length of time that he was chasing a reflection.
About the only theory left to check was that the object might have been one of the big, 100-foot-diameter, "skyhook" balloons. I rechecked the descriptions of the UFO made by the people in the tower. The first man to sight the object called it a parachute; others said ice cream cone, round, etc. All of these descriptions fit a balloon. Buried deep in the file were two more references to balloons that I had previously missed. Not long after the object had disappeared from view at Godman AFB, a man from Madisonville, Kentucky, called Flight Service in Dayton. He had seen an object traveling southeast. He had looked at it through a telescope and it was a balloon. At four forty-five an astronomer living north of Nashville, Tennessee, called in. He had also seen a UFO, looked at it through a telescope, and it was a balloon.
In the thousands of words of testimony and evidence taken on the Mantell Incident this was the only reference to balloons. I had purposely not paid too much attention to this possibility because I was sure that it had been thoroughly checked back in 1948. Now I wasn't sure.
I talked with one of the people who had been in on the Mantell investigation. The possibility of a balloon's causing the sighting had been mentioned but hadn't been followed up for two reasons. Number one was that everybody at ATIC was convinced that the object Mantell was after was a spaceship and that this was the only course they had pursued. When the sighting grew older and no spaceship proof could be found, everybody jumped on the Venus band wagon, as this theory had "already been established." It was an easy way out. The second reason was that a quick check had been made on weather balloons and none were in the area. The big skyhook balloon project was highly classified at that time, and since they were all convinced that the object was of interplanetary origin (a minority wanted to give the Russians credit), they didn't want to bother to buck the red tape of security to get data on skyhook flights.
The group who supervise the contracts for all the skyhook research flights for the Air Force are located at Wright Field, so I called them. They had no records on flights in 1948 but they did think that the big balloons were being launched from Clinton County AFB in southern Ohio at that time. They offered to get the records of the winds on January 7 and see what flight path a balloon launched in southwestern Ohio would have taken. In a few days they had the data for me.
Unfortunately the times of the first sightings, from the towns outside Louisville, were not exact but it was possible to partially reconstruct the sequence of events. The winds were such that a skyhook balloon launched from Clinton County AFB could be seen from the town east of Godman AFB, the town from which the first UFO was reported to the Kentucky State Police. It is not unusual to be able to see a large balloon for 50 to 60 miles. The balloon could have traveled west for a while, climbing as it moved with the strong east winds that were blowing that day and picking up speed as the winds got stronger at altitude. In twenty minutes it could have been in a position where it could be seen from Owensboro and Irvington, Kentucky, the two towns west of Godman. The second reports to the state police had come from these two towns. Still climbing, the balloon would have reached a level where a strong wind was blowing in a southerly direction. The jet-stream winds were not being plotted in 1948 but the weather chart shows strong indications of a southerly bend in the jet stream for this day. Jet stream or not, the balloon would have moved rapidly south, still climbing. At a point somewhere south or southwest of Godman it would have climbed through the southerly-moving winds to a calm belt at about 60,000 feet. At this level it would slowly drift south or southeast. A skyhook balloon can be seen at 60,000.
When first seen by the people in Godman Tower, the UFO was south of the air base. It was relatively close and looked "like a parachute," which a balloon does. During the two hours that it was in sight, the observers reported that it seemed to hover, yet each observer estimated the time he looked at the