gloss finish overall “Unconventional Flying Objects is an excellent reference guide for the researcher, a wake-up call for the skeptic…and a great mystery story for all trying H I to understand how UFOs really work.” L L —ROBERT WOOD from the foreword U N C O PAUL HILL was a well-respected NASA scientist when, in the early N 1950s, he had a UFO sighting. Soon after, he built the first flying platform V and was able to duplicate the UFO’s tilt-to-control maneuvers. Official E policy, however, prevented him from proclaiming his sightings. “I was UNCONVENTIONAL FLYING OBJECTS N destined,” says Hill, “to be as unidentified as the flying objects.” T I A Former NASA Scientist Explains How UFOs Really Work For the next twenty-five years, Hill acted as an unofficial clearinghouse O at NASA, collecting and analyzing sightings’ reports for physical N properties, propulsion possibilities, dynamics, etc. To refute claims that A UFOs defy the law of physics, he had to make “technological sense… L of the unconventional object.” F L Y After his retirement from NASA, Hill finally completed his remarkable I analysis. This book, published posthumously, presents his findings that N UFOs “obey, not defy, the laws of physics.” Vindicating his own sighting G and thousands of others, he proves that UFO technology is not only O explainable, but attainable. B J E “Paul Hill has done a masterful job ferreting out the basic science C and technology behind elusive UFO characteristics…Perhaps this book T will help bring solid consideration for making all that is known S about extraterrestrial craft publicly available.” —EDGAR MITCHELL, ScD, Apollo 14 Astronaut www.redwheelweiser.com ISBN: 978-1-57174-713-6 U.S. $24.95 Paul R. Hill Foreword by Robert Wood with Don Donderi UNCONVENTIONAL FLYING OBJECTS a scientific analysis "PaulHillhasdone a masterfuljobferreting outthe basicscienceandtechnology behindthe elusive UFO characteristicsanddemonstratingthey arejustadvanced andexoticextensionsofourown technologies. Perhaps this bookwillhelp bringsolidconsiderationfor making allthatis known aboutextraterrestrialcraftpublicly available." -EdgarMitchell, Sc.D., Apollo 14Astronaut PAUL R. HILL UNCONVENTIONAL FLYING OBJECTS a scientific analysis Copyright © 1995 by Julie M. Hill Foreword © 2014 by Robert M. Wood and Don C. Donderi All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from Hampton Roads Publishing, Inc. Reviewers may quote brief passages. Cover design by Jim Warner Cover art: space ship © shutterstock / Fer Gregory Figure © shutterstock / Dusit Hampton Roads Publishing Company, Inc. Charlottesville, VA 22906 Distributed by Red Wheel/Weiser, llc www.redwheelweiser.com Sign up for our newsletter and special offers by going to www.redwheelweiser.com/newsletter/. ISBN: 978-1-57174-713-6 Printed in the United States of America. EBM 10 9 8 7 6 5 4 3 2 1 Contents Foreword by Robert M. Wood 7 Introduction . 10 I. Physical Properties and Effects 31 II. Performance . 40 III. Illumination . 53 IV. How Hot is UFO Radiation? .. 70 V. Energetic Particle Ejection as Propulsion Possibility 83 VI Transmission of Forces . 92 VII. Direct Evidence of Force Field Propulsion 98 VIII Force Field Evaluation: Which Type? . 109 IX. The Saucer Hum and the Cyclic Field. . 119 X. Propulsion Oddities . . . . . 131 XI Saucer Dynamics 145 XII. Silent Subsonic Operation 174 XIII. Silent Supersonic Operation 181 XIV. The Aerodynamic Heating of UFOs 208 XV. High-Acceleration Loading On Occupants 219 XVI. UFO Artifacts . . . . . . . . . . . . . . . . 225 XVII. The Humanoid Occupants ... . . . . . 245 XVIII. Time Requirements for InterstellarTravel 262 XIX. UFO Operational Capabilities . 280 XX. Summary and Conclusions . . . . . . . . . 311 Appendix 1. Analysis of the Sound (Hum) and Vibrations . . . . . . . . . . . . 339 Appendix 2. A Comparison ofLevel and Ballistic Trajectories . 350 Appendix 3. UFO Aerodynamics: Incompressible Potential FlowTheory . 357 Appendix 4. Compressible Gas Dynamics With Force Field . 370 Appendix 5. InterstellarTravel Theory 383 Appendix 6. Propulsion Equations . . . 399 Appendix 7. Analyses of UFO Fields . 406 Author's Technical Biography and Credentials. 413 Works Cited . 421 Index of Names and Places 425 General Index . 427 Foreword NASA aeronautical engineer Paul R. Hill began to collect and analyze evidence about unidentified flying objects (UFOs) during the 1950s, but he could not publish anything about UFOs while employed by NASA. After Hill died in 1991, it was possible to publish the book that he wrote while working for NASA, Unconventional Flying Objects. Hill was a good engineer—he designed the fuselage for the World War II P-47 fighter-bomber—and his UFO analysis drew on his knowl- edge of the physics and engineering of flight. While at NASA, Hill designed and flew a machine that used the same basic principle of thrust that he used to explain UFO propulsion—except, as he had to admit, the anti-gravity drive. That drive would have allowed that principle to explain the observed near-earth performance of UFOs, and by extension, their interstellar performance. Hill knew that UFO technology so far exceeded the capability of terrestrial technology that UFOs could not have been made by humans: therefore, they have come here from somewhere else in the universe. Hill’s approach was 20 years ahead of its time. He never became trapped in the endless speculation about the reality of UFOs; he accepted the reports at face value and let his analysis of the observed phenomenon speak for itself. And his methodology was impeccable. He took the reported observations and then directly evaluated alter- native hypotheses, exploring all relevant aspects of the observations. His comprehensive analyses dealt with size, color, halos, clouds, wakes, jitter, heat, maneuvers, performance, sound, solidity, landing, weight, nests and rings, propulsion, propulsive forces, force fields, radiation, merging systems, occupants, collecting, interference, weaponry and artifacts. Although written in technically precise language, Unconventional Flying Objects is easy to understand because Hill sticks to the central principles of flight, dynamics and electricity, and he uses those clearly explained principles to clarify the remarkable set of reports he com- piled. The plain narrative style and the clear observations bring the book within the reach of the non-technical reader. The case histories – 7 – unconventional flying objects are easy to follow, and the information unfolds like a mystery story unraveling its plot. Sketches are simple and focus on the point in question, as if Hill were drawing them on the blackboard in his office for the visiting reader. Interspersed within the observational narra- tive are quantitative explanations for much of what Hill observed. The calculations are simple, comprehensible and checkable thro ugh- out—one of the necessary conditions for good technical work. The appendices carry the quantitative analysis further than in the narra- tive chapters, and they will interest the engineer and scientist. As Paul Hill knew, as our scientific predecessors of the seven- teenth, eighteenth and nineteenth centuries knew, and as we know, science begins with systematic observation. Observation is the foun- dation on which experiment, and eventually theory, is built. Obser- vational UFO evidence began to accumulate during World War II, was still accumulating when Hill wrote Unconventional Flying Objects, and continues to accumulate as we write. There are close-range, multiple-witness reports by trained observers, visual observations coincident with radar tracking, ground traces of visually observed UFOs, and “dogfights” between UFOs and the fighter jets of various nations, recorded on radar and reported by the pilots themselves. We have each independently reviewed more than sixty-five years of UFO evidence. On the basis of this evidence, we both know, as did Hill, that some UFOs must be extraterrestrial vehicles. Given the continually accumulating, and by now very public, body of evidence for extraterrestrial UFOs, why do so many leaders in science, culture and government still deny their reality? Extrater- restrial contact is upsetting for all of us. To admit that technologi- cally superior extraterrestrials are in contact with us is scientifically embarrassing because we do not understand nature as well as the extraterrestrials, it leaves us culturally uncertain what to do about it, and it makes governments anxious about what might happen as a result. The embarrassments, uncertainties and anxieties weigh heav- ily on the meritocracies of science, culture and government. People resist embarrassing, uncertainty-provoking and anxiety-producing facts by building psychological defenses that allow them to maintain a state of denial that is less upsetting than the facts. In 1890 William James explained how facts that are unrelated to any of our mental frames of reference are just not recognized—or if recognized, are only fleetingly acknowledged—because we have no – 8 – Foreword mental category with which to associate them. We do not now have the science to explain UFO performance, so the technical frame of reference for UFO evidence is lacking, and this makes the evidence easy to ignore. In 1909, Sigmund Freud theorized that upsetting facts may be repressed out of conscious awareness, at the psychological cost of a subsequent neurosis. If your professional focus is national defense, repression may be the only way you can quiet your anxiety about our technological unpreparedness to deal with an extraterres- trial adversary. In 1975, Leon Festinger explained that unpleasant facts can be ignored by metaphorically “shooting the messenger”: when you denigrate and diminish the messenger’s importance or credibility, you discredit the facts. If your role is political, shooting the UFO messenger is easier than briefing your constituents on the reality of extraterrestrial UFOs. All of these psychological defense mechanisms have been used to ignore, dismiss or deny the accumu- lated evidence about the existence of extraterrestrial UFOs. The philosopher Arthur Schopenhauer wrote: “All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.” Hill’s book has helped to move the evidence for extraterrestrial UFOs far beyond ridicule and has helped to position it in the public mind somewhere between “violently opposed” and “accepted as self-evident.” Reading Unconventional Flying Objects should convince you that the existence of extraterrestrial UFOs is self-evident. Robert M. Wood PhD (physics), Cornell University, 1953 McDonnell-Douglas Corporation, Huntington Beach, CA: Aeronautical Engineer, 1953 – 1961 Research and Development Manager, 1961 – 1993 Don C. Donderi PhD (experimental psychology), Cornell University, 1963 IBM Corporation Federal Systems Division, Owego, NY Human Factors Psychologist, 1958 – 1962 McGill University, Montreal Lecturer to Associate Professor, Department of Psychology, 1962 – 2009 Associate Dean, Faculty of Graduate Studies and Research, 1975 – 1978 – 9 –