bull; bull;Why won't your engine reach its top rated RPMs? bull;Why is your propeller shaft vibrating? bull;Why doesn't your boat reach the top speed claimed by the manufacturer? bull;Will more or less propeller pitch improve your boat's performance? bull;Is a square wheel (pitch equals diameter) best? bull;Is a folding prop best for your purposes? bull;Should you choose a two-, three-, or four-bladed propeller? All these questions and more are answered in this complete reference--the first of its kind. "We have highly recommended the Propeller Handbook to our distributors and repair stations, and have multiple office copies that our sales people refer to."--Michigan Wheel Corporation "This book will answer almost every propeller-related question you're likely to come across."--Ensign "Without doubt the definitive reference for selecting, installing, and understanding boat propellers."--Royal Navy Sailing Association Journal "This book is for everyone who has ever had to make a decision about a propeller: mechanics, boatbuilders, boat service yard owners, boat owners, as well as naval architects. Dave Gerr and International Marine made a complicated topic understandable and put it into a handbook that is easy to use."--WoodenBoatGerr, Dave is the author of 'Propeller Handbook The Complete Reference for Choosing, Installing, and Understanding Boat Propellers' with ISBN 9780071381765 and ISBN 0071381767.