Gary Gentile's Wreck Diving Guide Books
Gary Gentiles Shipwreck and wreck diving books.
  Primary Wreck-Diving Guide
ISBN 0-9621453-9-4 softcover with color covers 6 x 9 vertical, 160 pages, 169 color photos, 9 black & white photos, 8 illustrations.
Wreck-diving is a discipline as different from open-water scuba as college is from kindergarten. The basic certification course introduces a non-diver to the subsurface world, and provides him with the essential knowledge and skills necessary to enable him to immerse his body in water and discover that, with artificial devices, he can still breathe. However, a check-out dive and a C-card do not prepare a person for the rigors of wreck-diving. Most certifying agencies offer specialty courses designed to present the entry level diver with new challenges, encouraging him to improve his proficiency under controlled supervision. This step-by-step approach is good because it ensures that a diver does not get in over his head, so to speak, by taking on more than he can handle. What the beginner sometimes fails to realize is that dives conducted in different environments and under a variety of conditions require an intimate understanding of himself and his limitations, and of the water into which he is about to plunge: the ocean is more than a pool with a larger circumference. By increasing his skills incrementally and by gaining a gradual appreciation for the deep, a diver can achieve his full potential safer and more rapidly.
This book is a primer for one particular and very captivating activity: diving on shipwrecks. It proposes to offer practical information, as opposed to theoretical or mathematical; that is, how to conduct a dive on sunken ships, not what happens to the body under pressure. Furthermore, it intends to address the grimmer realities that are often overlooked: entanglement, equipment flooding, seasickness, and getting lost at sea, to name a few. To a certain extent, these unfortunate events are overemphasized in order to make up for the fact that they are seldom addressed in class or in popular publications: they make uncomfortable enlightenment at best. My intention is not to scare anyone off, but to acquaint people with worst case scenarios that may never occur, and to impart information that is otherwise unobtainable.
The topics covered include equipment modification, thermal protection, access to sites, current and surge, wreck orientation and navigation, night diving, photography, pharmacology, and a riveting rivet by rivet account of how shipwrecks got the way they are and why they look the way they do. The text is extensively illustrated with color photographs from the author's collection; eight illustrations demonstrate the evolution of shipwreck collapse, from an intact hull to a field of debris.
Primary Wreck-Diving Guide is the first of the three Wreck-Diving Guides. It is followed by the Advanced Wreck-Diving Guide (deep air diving, decompression methods, wreck penetration, and more), which itself is followed by the Ultimate Wreck-Diving Guide (which introduces nitrox, mixed gas, accelerated decompression using oxygen, and other high-tech concepts).
  The Technical Diving Handbook
ISBN 1-883056-05-5, softcover lay-flat binding. Large Format 8 1/2 by 11
192 pages, 125 color photos, 12 tables, 12 equations, fully indexed

The Ultimate Wreck-Diving Guide was the seminal book on technical diving: the primogenitor of its kind. It was written at a time when nitrox, accelerated decompression, helium mixes, rebreathers, and other emerging techniques and technologies were yet in their infancy. The publication of the original volume propelled deep diving into far deeper realms of the dark abyss.
The Ultimate, as it came to be called, was considered pure heresy by those who opposed progress. The purpose of the book was to introduce to the information-starved masses that a small group of exploratory divers was stretching the underwater envelope, and how they went about doing it. Call it an awareness guide.
Ignited by the author's vision, technical diving has taken off like a launched rocket, accelerating faster with each passing moment and carrying with it a payload of unknown dividends. What began as new phase in the slow progress of underwater exploration has grown with lightninglike speed.
Evolution became revolution. Almost overnight, the concepts of "high tech" and "extended range" diving entered the forefront of human awareness.
The rite of passage is over. Technical diving has come of age.
Underwater explorers can now share the benefits of space-age spin-off hardware and developing decompression methodologies. The present volume incorporates recent innovations that were unavailable until only a few years ago, and in some cases were nonexistent when its predecessor first saw print.
Acquaint yourself now with such new and exciting devices as the programmable nitrox wrist decompression computer, the personal computer interface, the hoseless pressure gauge, a heads-up mask display, decompression software for laptops, a submersible electric heating pad, and more.
Also included in this handbook are equations and tips for blending nitrox, trimix, heliox, and heliair; instructions on how to build an in-water oxygen decompression station; the procedures and the chemicals needed to clean tanks, valves, and regulators for oxygen service; and a complete chapter on how to plan and conduct expedition style mix-gas diving operations.
The previous book was the ultimate. This one goes beyond.


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