by Hal Puthoff
To the degree that the engineering characteristics of UFOs can be estimated by empirical observation, in this reviewer's opinion the recently published "Unconventional Flying Objects" by Paul Hill (Hampton Roads Publ., 1995; ISBN 1-57174-027-9; $15.95) provides the most reliable, concise summary of engineering-type data available. The data were compiled over decades of research by a Chief Scientist-Manager at NASA's Langley Research Center who acted as an informal clearinghouse of UFO-related data. The strength of the compilation lies in its thoughtful separation of wheat from chaff, and the analysis of the former into coherent patterns, including detailed calculations.
Perhaps surprising to the casually interested, under careful examination the observations, rather than defying the laws of physics as naive interpretation might suggest, instead appear to be solidly commensurate with them.
One of the most consistently observed characteristics of UFO flight is a ubiquitous pattern in which they tilt to perform all maneuvers. Specifically, they sit level to hover, tilt forward to move forward, tilt backward to stop, bank to turn, and descend by "falling leaf" or "silver-dollar-wobble" motions. Detailed analysis by Hill shows that such motion is inconsistent with aerodynamic requirements, but totally consistent with some form of repulsive force-field propulsion.
Further detailed investigation indicates that the particular form of force field propulsion that satisfies observational constraints is what Hill labels a "directed acceleration field;" that is, a field that is, in general, gravitational-like in nature, and, in particular, gravity-canceling.
One of the consequences of [such] field propulsion is that supersonic flight through the atmosphere without sonic booms is easily engineered. Manipulation of the acceleration-type force field would, even at supersonic speeds, result in a constant-pressure, compression-free zone without shockwave in which the vehicle is surrounded by a subsonic flow-pattern of streamlines, and subsonic velocity ratios.
Another puzzle resolved by Hill's analysis is that craft observed to travel continuously at Mach 4 or 5 do not appear to generate temperatures sufficiently high to be destructive to known materials. In other words, UFOs appear to prevent high aerodynamic heating rates,... shown by Hill to derive from the fact that the force-field control that results in the prevention of shockwave drag is also effective in preventing aerodynamic heating.
Also of interest is Hill's analysis of the spectra and intensity of an apparent plasma sheath surrounding such craft, the details of which correlate with what one would expect in terms of it being a secondary effect associated with the propulsion system, for example, a blue shift and intensity increase during a "power-up" phase, and the opposite during hover or landing maneuvers.
Another typical nugget of information is found in Hill's discussion of the results of the analysis of a possible UFO artifact, the famous Ubatuba magnesium fragments claimed to have originated from an exploded unidentified craft near Ubatuba, Brazil. Laboratory analysis of the samples found the magnesium to be not only of exceptional purity, and anomalous in its trace composition of other elements, but 6.7% denser than ordinary pure magnesium, a figure well beyond the experimental error of the measurement. Hill's calculation shows that this observation can be accounted for by assuming that the sample contained only the pure isotope Mg26, rather than the naturally occurring distribution of isotopes Mg24, Mg25 and Mg26. Since the only isotope separation on a significant scale in terrestrial manufacture is that of uranium, such a result must be considered at least anomalous, and possibly as evidence for extraterrestrial manufacture.
In the final analysis, one must conclude that Hill has assembled as good a case as can be made on the basis of presently available data that the observation of some "unconventional flying objects" is compatible with the presence of engineered platforms weighing in at something around 30 tons, which are capable of 100-g accelerations and 9000-mph speeds in the atmosphere.
Original file name: .CNI - UFOs Don't Defy Physics
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