The Propeller Handbook: The Complete

On the surface, choosing the correct propeller for a particular boat seems simple. But one factor affects another, which then affects another factor, leading many boaters to believe that propeller selection depends more on black magic than logic.All the questions are answered in this complete reference, the first of its kind. This clear, easy-to-use handbook for all small boats is written not for Ph.D.s seeking the latest wrinkle in high-tech propeller design, but as a practical aid for the average mechanic, engineer, boatbuilder, fleet operator, serious yachtsman, or naval architect.

Dave Gerr is a naval architect specializing in the design of yachts and commercial craft to 180 feet. He has worked on vessels ranging from 440-foot cruise ships to a 60-foot BOC racer, a 60-mph jet-drive runabout, a 7-knot, 25-foot cruising motor launch, 100-foot aluminum motoryachts, and an assortment of 40- and 50-foot auxiliaries and motorsailers.

Owner of his own design firm, Gerr is a graduate of Westlawn School of Yacht Design and has studied physics at New York University and industrial design at Pratt Institute. He has a particular fascination with the relationship between science and art, function and beauty, and finds in naval architecture a rewarding harmony among these.

Dave Gerr's articles on boat design have appeared in Cruising World, Ocean Navigator, SAIL, Yachting, and WoodenBoat. He is a contributing editor for Boatbuilder and Offshore magazines. He is the author of The Nature of Boats and The Elements of Boat Strength, both published by International Marine.

Acknowledgments

Introduction

Chapter 1. Power: Understanding Engine Performance

Chapter 2. Estimating Speed: Effects of Power, Weight, and Hull Type

Chapter 3. Propeller Anatomy: Parts and Definitions

Chapter 4. Blade Characteristics: Blade Shape, Cavitation, Special Propellers, and Rules of Thumb

Chapter 5. Crouch's Propeller Method: The Empirical Method for Calculating Propellers Using Slip

Chapter 6. The Bp- Method: The Power Factor Method for Calculating Propellers

Chapter 7. Installation Considerations: Blade Clearances, Shafting, and Propeller Weight

Chapter 8. Tugs and Trawlers: High-Thrust, Variable-Loading, Controllable Pitch, and Ducted Propellers

Chapter 9. Sailboats, Outboards, and Go-Fast Wrinkles: Propellers for Special Applications

Appendix A. Measuring the Hull: Procedure for Determining Displacement

Appendix B. Measuring the Propeller: Procedure for Finding Diameter and Pitch

Appendix C. Shaft Taper and Coupling Dimensions

Appendix D. Decimal Exponents

Manufacturers and Suppliers

Bibliography

Index

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The Propeller Handbook: The Complete Reference for Choosing, Installing, and Understanding Boat Propellers

Summary

Author Biography

Table of Contents

Supplemental Materials