Page 331 - The Complete Rigger’s Apprentice
P. 331

And when all that’s done, you have to convince   Carbon Fiber and Stayed Racers
                  sailors—a notoriously conservative bunch—that
                  this isn’t just some loony engineer’s Bright Idea.   Because carbon fiber is vulnerable to impact
                  It doesn’t help that other manufacturers, some of   loads, as well as corrosion from improperly
                  whom are not as skilled or careful as the people of   mounted fasteners, and because it is tricky to
                                                                 repair, responsibly made unstayed masts can be
                  Tillotson-Pearson, produce masts which perform   relatively heavy for a generous, lifetime-guaran-
                  poorly and/or break. It doesn’t help that the process   teed safety factor.
                  is very expensive. And it doesn’t help that unstayed   But carbon fiber is also extremely light for its
                  carbon fiber masts still deflect under load more than   strength, and extremely inelastic. So, especially if
                                                                 safety factors aren’t a big issue, fiber masts can be
                  a comparably well-designed stayed mast (see the   much lighter. And if they have standing rigging
                  mast bend sidebar, though, for a positive side to   to support them, they can be far lighter still. This
                  mast deflection). In particular, unstayed masts have   is why, rules allowing, the very hottest race boats
                                                                 have spindly, stayed carbon fiber masts. Expen-
                  a hard time dealing with compression loads from big   sive like you wouldn’t believe, and so, so fragile,
                  staysails, the ones you trim in to go to weather.  but faster.
                     With these drawbacks, carbon fiber unstayed
                  masts might have faded into obscurity but for the  ing boats didn’t require the “deck apes” that Hoyt
                  evangelical zeal of Garry Hoyt. Early on, Hoyt  said were necessary to handle staysails. And they
                  pitched the advantages of the rig with such force that  saw that some of his rigging ideas—the wishbone
                  the public began to focus less on the disadvantages.  boom, wraparound luff, and lack of staysails—were
                  Hoyt founded Freedom Yachts, convinced that he  not only unfamiliar, but also offered no efficiency
                  could do not just a better job, but a revolutionary  advantage. It didn’t help that his hull designs were
                  one. In addition to shrouds, he did away with stays,  less than graceful.
                  staysails, vangs, and conventional booms and luffs   So, over the years, Freedoms have edged closer
                  (he used wishbone booms, which were supposed to  to the mainstream in terms of overall appearance
                  be self-vanging, and used mast-encircling luffs).  as well as rig details. This process was accelerated
                     To make the sail hold an aerodynamic shape  when Tillotson-Pearson bought Freedom Yachts
                  on a relatively noodly mast, he installed full-  and hired Gary Mull and other naval architects to
                  length battens. To make the sail easier to handle he  redesign the boats. The new Freedoms are sleeker,
                  installed lazyjacks and a single-line reefing system  and sport a low-mounted stay with self-tending
                  he invented. Then he led these and all other control  staysail, along with an ingenious Hoyt-patented
                  lines to the cockpit. This last detail is important; if  “Gun Mount” spinnaker (again, you don’t have to
                  you go forward on an unstayed boat, there’s nothing  go forward to tend it) and a conventional mainsail
                  to hold on to but the mast.                 luff groove, boom, and vang.
                     Hoyt unleashed his early Freedoms on the world   The masts themselves are still marvels of engi-
                  of yachting, demonstrated that they were efficient,  neering (they’re guaranteed for the life of the boat),
                  easily handled, and durable, and waited for sail-  arguably the best production carbon fiber spars
                  ors to drop stayed rigs like last year’s software. He  made. They are built to extremely high safety fac-
                  made a dent, but not a big one. Why? For one thing,  tors, partly because that’s how Tillotson-Pearson
                  he’d made a lot of noise about how horrible stayed  does things and partly because carbon fiber masts
                  rigs were supposed to be. To hear Hoyt tell it, going  are very, very difficult to repair once they’ve been
                  out on a stayed-rig daysail involved an exhausting  damaged. An impact shock, for example, can break
                  physical workout, along with a strong chance of suf-  fibers on the inside of the mast. Carbon fiber can
                  fering a dismasting from “one missing cotter pin or  also degrade stainless fasteners, so fasteners must be
                  one broken wire.” People looked around and saw  isolated from the fibers and installed only at places
                  that it just wasn’t so. They also saw that non-rac-  that are specially reinforced during construction.

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