Although the propeller lies submerged out of sight, it is a complex component in both the hydrodynamic and structural sense. This book fulfils the need for a comprehensive and cutting edge volume that brings together a great range of knowledge on propulsion technology, a multi-disciplinary and international subject. The book comprises three main sections covering hydrodynamics; materials and mechanical considerations; and design, operation and performance. The discussion relates theory to practical problems of design, analysis and operational economy, and is supported by extensive design information, operational detail and tabulated data. Fully updated and revised to cover the latest advances in the field, the new edition now also includes four new chapters on azimuthing and podded propulsors, propeller-rudder interaction, high-speed propellers, and propeller-ice interaction.·The most complete book available on marine propellers, fully updated and revised, with four new chapters on azimuthing and podded propulsors, propeller-rudder interaction, high-speed propellers, and propeller-ice interaction·A valuable reference for marine engineers and naval architects gathering together the subject of propulsion technology, in both theory and practice, over the last forty years ·Written by a leading expert on propeller technology, essential for students of propulsion and hydrodynamics, complete with online worked examples

The early development of the screw propeller. Propeller geometry. The propeller environment. The ship wake field, propeller performance characteristics.

Clear-sighted, darkly comic, and tender, The Twenty-Seventh Letter of the Alphabet is about a daughter's struggle to face the Medusa of generational trauma without turning to stone. Growing up in the New Jersey suburbs of the 1970s and 1980s in a family warped by mental illness, addiction, and violence, Kim Adrian spent her childhood ducking for cover from an alcoholic father prone to terrifying acts of rage and trudging through a fog of confusion with her mother, a suicidal incest survivor hooked on prescription drugs. Family memories were buried--even as they were formed--and truth was obscured by lies and fantasies. In The Twenty-Seventh Letter of the Alphabet Adrian tries to make peace with this troubled past by cataloguing memories, anecdotes, and bits of family lore in the form of a glossary. But within this strategic reckoning of the past, the unruly present carves an unpredictable path as Adrian's aging mother plunges into ever-deeper realms of drug-fueled paranoia. Ultimately, the glossary's imposed order serves less to organize emotional chaos than to expose difficult but necessary truths, such as the fact that some problems simply can't be solved, and that loving someone doesn't necessarily mean saving them.

An international community of specialists reinvented the propeller during the Aeronautical Revolution, a vibrant period of innovation in North America and Europe from World War I to the end of World War II. They experienced both success and failure as they created competing designs that enabled increasingly sophisticated and 'modern' commercial and military aircraft to climb quicker and cruise faster using less power. Reinventing the Propeller nimbly moves from the minds of these inventors to their drawing boards, workshops, research and development facilities, and factories, and then shows us how their work performed in the air, both commercially and militarily. Reinventing the Propeller documents this story of a forgotten technology to reveal new perspectives on engineering, research and development, design, and the multi-layered social, cultural, financial, commercial, industrial, and military infrastructure of aviation.

The newest addition to Partners In Leadership's accountability series that began with the classic The Oz Principle. The Oz Principle has sold more than a million copies since it debuted in 1994, establishing it as the go-to reference on workplace accountability throughout the world. By embracing its practical and invaluable advice, tens of thousands of companies have improved their organizational accountability -- the key to achieving and sustaining exceptional results. Now, the team at Partners In Leadership is applying thirty years of proven success to a whole new concept: Propeller. This book presents a modern take on accountability, while remaining faithful to the elegantly simple premise: When people take personal ownership of their organization's priorities and accept responsibility for their own performance, they become more engaged and perform at a higher level. With all new examples and stories, Propeller builds on the The Oz Principle's legacy to inspire the next generation of readers to tap the incredible power of personal, team, and organizational accountability.

A basic but thorough text explaining the fundamentals of propellers and controls. ISBN# 0-89100-097-6. 156 pages.

This report presents the results of an investigation conducted in the Langley 300 mph 7- 10-foot wind tunnel for the purpose of determining the aerodynamic characteristics of a model wing-propeller combination, and of the wing and propeller separately at angles of attack up to 90 degrees. The tests covered thrust coefficients corresponding to free-stream velocities from zero forward speed to the normal range of cruising speeds. The results indicate that increasing the thrust coefficient increases the angle of attack for maximum lift and greatly diminishes the usual reduction in lift above the angle of attack for maximum lift.

Albert Edward Seaton describes and discusses different methods and instruments for marine propulsion. The focus is on the screw propeller. Seaton gives an account of its history, leading features, forms and the materials used for it. In addition, he presents several screw propeller trials and experiments of the late 19th and early 20th century.Reprint of the original edition from 1909.