All About Powerboats: Understanding Design and Performance

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March 26, 2002


Mixed media product, 160 pages


0071362045 / 9780071362047


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Main description

What's the difference between a deep-vee hull and a modified vee? A planing hull and a displacement hull? Find the answers to these and scores of other frequently asked questions in All About Powerboats. Writing for any boater seeking a better understanding of modern powerboat design and handling, author Roger Marshall provides a well-illustrated, clear introduction to small powerboats (18 to 30 feet long) from the perspective of use. His practical advice on hull shape, engines, construction methods, steering systems, comfort, and safety gives today's boaters a thorough grounding in powerboat selection, use, and lore.

Table of contents

Acknowledgments Chapter 1. FACTORS IN POWERBOAT DESIGN Powerboat Speed Other Design Factors Seaworthiness / Range / Comfort / Cost Chapter 2. THE LANGUAGE OF HULL SHAPES Reading the Lines Profile View / Plan View / Sectional View Features of Hull Design Chines / Deadrise / Freeboard / Flare / Keels and Bilge Keels / Running Strakes / Trim Angle and Trim Tabs Chapter 3. HULL SHAPES Displacement Hulls Trawler Yachts / Skinny Boats / Catamarans Planing Hulls High-Speed Deep-V Hulls / Stepped Hulls Fishing Hull Shapes Saltwater Flats Boats / Bass Boats / Offshore Sportfishing Boats Semiplaning or Transitional Hull Shapes Bow / Midbody / Stern Summary Common Questions A Rounded Hull or a Chined Hull: Which Is Best? / How Fast Will It Go? / How Many People Can I Get Aboard? / What Kind of Range Can I Expect? Chapter 4. TOOLS TO HELP EVALUATE BOATS Speed - Length Ratio / Displacement - Length Ratio / Length-to-Beam Ratio / Power-to-Weight Ratio / Cubic Number / Prismatic Coefficient Chapter 5. Powerboat Styling Hull Styling Developing the Sheerline / Developing the Bow and Stern Adding the Superstructure Avoiding Clutter Chapter 6. UNDERSTANDING STABILITY Factors Affecting Transverse Stability Form Stability / Center of Gravity / Chines and Chine Flats Longitudinal Stability Tender and Stiff Boats Stability at Large Angles of Heel Effects of Flooding on Stability Chapter 7. SEAWORTHINESS The Skill of the Skipper and Crew A Seaworthy Hull Seaworthiness Belowdecks Engine Room Seaworthiness on Deck Chapter 8. COMFORT A Comfortable Hull Shape Onboard Location Counts Stabilizers Passive Stabilizers / Active Stabilizers / Paravanes / Dynamic Stabilization Comfort on Deck Easy and Safe to Go Forward / Easy-to-Climb Ladders and Stairwells / Easy to Work in the Cockpit or to Enjoy the Fantail / Fewer Steps between Deck Levels Lighting for Comfort Deck Lighting / Lighting in the Engine Room Interior Comfort Doors, Passageways, and Walkways / Bridge Layout / Sleeping Quarters / Bunk Dimensions / Bathrooms and Toilets Designing for Good Maintenance Storage Electronics Storage / Galley Storage / Lockers / Refrigerator / Under the Cabin Sole / Overhead Storage / Engine Room Storage / Anchor Storage Chapter 9. POWERING YOUR BOAT Early Engines Basic Engine Types Two-Stroke Cycles or "Two-Cycle" Engines (Gasoline) / Four-Stroke Cycles or "Four-Cycle" Engines (Gasoline) / Diesel Engines (Inboards) Outboard Engines Recent Outboard Engine Developments / Choosing an Outboard Inboard Engines The Latest Gasoline Inboard Engines / Diesel Inboard Engines / Gas or Diesel Inboard: Which One Is for You? / Single or Twin Engines? Sterndrive Engines Inboard, Outboard, or Sterndrive? Jet Drive Drive Train Components Transmission / Propeller Shaft / Shaft Logs Chapter 10. PROPELLERS Propeller Terminology Increasing Your Propeller's Efficiency Common Engine Solutions Vibration / Noise Chapter 11. STEERING SYSTEMS Wheel Steering Hydraulic / Cable / Wire Other Types of Steering Systems Steering with a Whipstaff / Tiller Steering / Rack-and-Pinion Steering Rudders Steering with Twin Engines Backing Down Chapter 12. How a Boat Is Built The Mold Making the Plug / Making the Mold Laying Up a Hull The Laminate / Interior Moldings / Vacuum-Assisted Resin Transfer Molding (VARTM) Evolution of Hull Materials Core Materials Resins Putting the Hull Together Production Boat Construction / Custom Boat Construction / Semicustom Boats / Safety Appendix. INFLATABLES Puncture Resistance Rigid-Bottom versus Soft-Bottom What to Look For: Features and Construction Index

Author comments

Roger Marshall is the technical editor for Soundings. After designing for the renowned firm of Sparkman & Stephens, he founded his own design company, where he has designed boats from 15 to 165 feet. He has written extensively for the boating press and is the recipient of numerous writing awards, including recent first-place awards at the annual Boating Writing International marine journalism contest. He is the author of ten boating books.

Back cover copy

"Clear, insightful, easy to understand. This book is a must for powerboaters."--Bill Sisson, editor, Soundings

"Roger Marshall shares three decades of accumulated boating knowledge so you can cut years off your learning curve!"--Dean Clarke, executive editor, Sport Fishing

Your plain-language guide to powerboat design and performance

What's the difference between a modified-V and a deep-V hull? Or a planing hull and a displacement hull?

Why does boat A have flared topsides and not boat B?

How can I tell if a boat is adequately powered?

How do I judge a boat's seaworthiness just by looking at it?

What are the advantages or disadvantages of twin engines or a stern drive?

Get answers to these and all your questions about powerboat design and performance in All about Powerboats.

If you want to know what makes a boat fast, slow, stable, unstable, seaworthy, comfortable, or ideal for the things you want it to do, here's a perfect place to start. Longtime boat designer Roger Marshall tells you what you need to know about hull design, engines, drive trains, steering systems, comfort factors, safety features, and construction methods. He translates the jargon, explains the key concepts, and offers a wealth of insights into what makes powerboats tick.

Copyright 2014 McGraw-Hill Global Education Holdings, LLC


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