An explanation of the capabilities and behaviour of the big multihulls. Beginning by examining their origins, and going on to explain their design elements, their performance and the particular handling requirements, this book presents a thorough analysis of the world of multihulls.
Part 1 In the beginning - the origins and evolution of the multihull, and the lessons learned through trial and error: raft boats; kaimiloa; outriggers and proas; Hawaiian catamarans; double canoes; the Prout brothers; early trimarans; Captain Cook; James Wharram; Sir William Petty; Arthur Piver; Nathaniel Herreshof; today's designers. Part 2 Why a multihull? - the features in their favour, and a few against: speed; accommodation; faster than the wind; stability and motion; weight; causes of capsize; windage; cost; passage time; insurance; shoal draught; multihulls and monohulls compared. Part 3 Design and performance (part 1) handicapping, hull shapes and computer-aided design: speed formulae; hull cross-sections; performance yardsticks; accommodation volume; ratings; prismatic coefficient; formula 26 and 28; asymmetry; wavemaking resistance; rocker; displacement, length and beam; pitching; frictional resistance; computer-aided design. Part 4 Design and performance (part 2) stability and the dynamics of capsize, floats, centreboards and rudders: trimaran floats; capsize risk; stability; high buoyancy floats; wave action; survival compartments; keels and centreboards; effects of heeling; rudders; cross beams and rig tension; rudders. Part 5 Design and performance (part 3) sails and sail forces, aerodynamic drag, apparent wind speed and angle, rigs, masts and rigging: how sails work; stalling; sail interaction; sail forces; apparent windspeed; hull air drag; rig; apparent wind angle; sail areas; roach; full length battens; spinnakers; fractional rig; self-tacking headsail; standing rigging; mast bend; storm jib; rotating masts; wingmasts; reefing and furling gear; deck gear. Part 6 Engines and generators: auxiliary engines; diesels; outboard motors; cavitation; generators. Part 7 Construction - boatbuilding and materials and techniques: wood; mechanical properties; moisture content; rot; epoxy resin; framing; plywood; developed plywood; laminated hulls; cylinder moulding; constant camber; strip planking; moulded plastics; reinforcing materials; resin types; blistering; sandwich construction; core materials; kit panel system. Part 8 Road trailers - legal requirements, mechanical features, rigging and launching the boat: the law on your trail; speed and size constraints; weight and brakes; couplings; tyres; lights; aids and accessories; trailer types; stepping the mast; launching tips. Part 9 Handling under sail - procedures in cruising and racing, and heavy weather tactics: apparent wind; the effect of gusts; releasing sheets; sailing close hauled; tacking; heaving to; anchoring; use of telltales; controlling sail shape; reaching; running; spinnaker handling; downwind tacking; velocity made good; reefing; strong wind sailing; steering to windward; off the wind in heavy weather; survival tactics.
Multihulls for Cruising and Racing by Derek Harvey
Used - Very Good
Bloomsbury Publishing PLC
Book picture is for illustrative purposes only, actual binding, cover or edition may vary.
This is a used book - there is no escaping the fact it has been read by someone else and it will show signs of wear and previous use. Overall we expect it to be in very good condition, but if you are not entirely satisfied please get in touch with us.