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.
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 (rhymes with "bear") is a naval architect who designs both yachts and commercial vessels. Gerr Marine has been in business since 1983 and has designed everything from dinghies to 60-foot around-the-world racing sailboats, an 82-foot aluminum voyaging motoryacht, and currently, redesign work on the U.S. Navy's nuclear submarines. Gerr is a contributing editor with Boatbuilder, Yachting, and Offshore magazines. HOMETOWN: New York, NY
Inhaltsangabe
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
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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