By Brian Hancock
Written in concise, layperson's language and entire of images and private anecdotes, this ebook is going step by step in the course of the technique of growing and utilizing sails. supplied is a definitive examine the most recent advancements in sails, sailcloth, engineering, undefined, and sail trim. additionally provided are case experiences that illustrate which fibres, materials, and sails are appropriate for a number of various crusing purposes, from easy dinghies and day sailors to offshore racing and cruising yachts. Sailors of all degrees of curiosity and talent will locate info they could observe to their very own boats and sail offerings.
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Additional resources for Maximum Sail Power: The Complete Guide to Sails, Sail Technology, and Performance
This distinctive black yarn is similar in modulus to Kevlar 29 with a slightly better flex capacity. The raw fiber is in fact gold, but fabric makers dye the yarns black to improve the fiber’s low UV tolerance. While Technora sails were popular for a while, the fiber 20 Chapter Two It Starts With a Yarn Thank Goodness for Ted Hood In the early 1980s I was fortunate enough to be part of the crew of the maxi-boat Nirvana. At the time the boat was a cutting-edge design that held true to my theory that beautiful boats also sail fast.
In the meantime, nylon became a tremendously popular fiber both in the fashion industry and later for making parachutes during the Second World War. Eventually its strength and durability were recognised by the sailmaking industry and the fiber was used to make light fabric for spinnakers. Nylon is particularly suitable for this use because it has some give, and for spinnakers strength for weight is more important than stretch resistance. Spinnakers are used when sailing downwind when the loads on the sail are greatly reduced.
Pentex The first real advance on basic polyester came with the development of a fiber called polyethylene napthalate, or Pentex for short. This modified polyester is made by Honeywell Performance Fibers under the trade name of PEN and is, in fact, a super-Dacron combining all the great qualities of Dacron without the one major drawback — stretch. Pentex was developed for the tire and mechanical rubber markets and has several features that make it well suited for sailcloth applications, including the fact that it is rugged and has two and a half times the modulus, or stretch resistance, of regular Dacron.