All About Powerboats: Understanding Design and Performance

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March 26, 2002


Paperback, 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

AcknowledgmentsChapter 1. FACTORS IN POWERBOAT DESIGNPowerboat SpeedOther Design FactorsSeaworthiness / Range / Comfort / CostChapter 2. THE LANGUAGE OF HULL SHAPESReading the LinesProfile View / Plan View / Sectional ViewFeatures of Hull DesignChines / Deadrise / Freeboard / Flare / Keels and Bilge Keels / Running Strakes / Trim Angle and Trim TabsChapter 3. HULL SHAPESDisplacement HullsTrawler Yachts / Skinny Boats / CatamaransPlaning HullsHigh-Speed Deep-V Hulls / Stepped HullsFishing Hull ShapesSaltwater Flats Boats / Bass Boats / Offshore Sportfishing BoatsSemiplaning or Transitional Hull ShapesBow / Midbody / SternSummaryCommon QuestionsA 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 BOATSSpeed - Length Ratio / Displacement - Length Ratio / Length-to-Beam Ratio / Power-to-Weight Ratio / Cubic Number / Prismatic CoefficientChapter 5. Powerboat StylingHull StylingDeveloping the Sheerline / Developing the Bow and SternAdding the SuperstructureAvoiding ClutterChapter 6. UNDERSTANDING STABILITYFactors Affecting Transverse StabilityForm Stability / Center of Gravity / Chines and Chine FlatsLongitudinal StabilityTender and Stiff BoatsStability at Large Angles of HeelEffects of Flooding on StabilityChapter 7. SEAWORTHINESSThe Skill of the Skipper and CrewA Seaworthy HullSeaworthiness BelowdecksEngine RoomSeaworthiness on DeckChapter 8. COMFORTA Comfortable Hull ShapeOnboard Location CountsStabilizersPassive Stabilizers / Active Stabilizers / Paravanes / Dynamic StabilizationComfort on DeckEasy 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 LevelsLighting for ComfortDeck Lighting / Lighting in the Engine RoomInterior ComfortDoors, Passageways, and Walkways / Bridge Layout / Sleeping Quarters / Bunk Dimensions / Bathrooms and ToiletsDesigning for Good MaintenanceStorageElectronics Storage / Galley Storage / Lockers / Refrigerator / Under the Cabin Sole / Overhead Storage / Engine Room Storage / Anchor StorageChapter 9. POWERING YOUR BOATEarly EnginesBasic Engine TypesTwo-Stroke Cycles or "Two-Cycle" Engines (Gasoline) / Four-Stroke Cycles or "Four-Cycle" Engines (Gasoline) / Diesel Engines (Inboards)Outboard EnginesRecent Outboard Engine Developments / Choosing an OutboardInboard EnginesThe Latest Gasoline Inboard Engines / Diesel Inboard Engines / Gas or Diesel Inboard: Which One Is for You? / Single or Twin Engines?Sterndrive EnginesInboard, Outboard, or Sterndrive?Jet DriveDrive Train ComponentsTransmission / Propeller Shaft / Shaft LogsChapter 10. PROPELLERSPropeller TerminologyIncreasing Your Propeller's EfficiencyCommon Engine SolutionsVibration / NoiseChapter 11. STEERING SYSTEMSWheel SteeringHydraulic / Cable / WireOther Types of Steering SystemsSteering with a Whipstaff / Tiller Steering / Rack-and-Pinion SteeringRuddersSteering with Twin EnginesBacking DownChapter 12. How a Boat Is BuiltThe MoldMaking the Plug / Making the MoldLaying Up a HullThe Laminate / Interior Moldings / Vacuum-Assisted Resin Transfer Molding (VARTM)Evolution of Hull MaterialsCore MaterialsResinsPutting the Hull TogetherProduction Boat Construction / Custom Boat Construction / Semicustom Boats / SafetyAppendix. INFLATABLESPuncture ResistanceRigid-Bottom versus Soft-BottomWhat to Look For: Features and ConstructionIndex

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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