With sunny skies and a 14 knot southerly breeze, I ran WILDFLOWER from Berkeley Marina north under the Richmond Bridge. The destination was Marin Yacht Club up San Rafael Creek, where I hoped to attend a presentation by Bill Edinger, owner of the well traveled trimaran DEFIANCE.
From Marker #17, it was a straight shot of 2 miles, course 280m, up the dredged channel, past the Marin Islets, to the entrance of San Rafael Creek. The dredged channel is 50' wide, and it being zero tide, the least depth I saw with 5'. The bottom in the area is sticky black mud, and if one gets off the entrance range, it is a soft landing of little consequence, as I discovered while attempting to come head to wind to drop sails.
Marin YC was welcoming, and enjoys a pleasant situation on the starboard side of San Rafael Creek. Bill Edinger's slide presentation focused on his recent (spring/summer 2014) voyage to French Polynesia on the 45' Norm Cross tri DEFIANCE. Founder of Spectra Watermakers, Bill is the best of seamen. And the voyage amongst the islands of the Marquesas and Societies looked idyllic.
However, halfway back to San Francisco from Hawaii, the headstay toggle on DEFIANCE broke, and the mast fell backwards, landing mostly on board. The mast, and much of the rigging was recovered. And Bill and crew, with 100 gallons of extra fuel transferred from a passing cruise ship, motored the last 1,000 miles safely home. The story, and a short video shot from aboard the cruise ship are here:
http://www.sailfeed.com/2014/10/dismasting-in-the-north-pacific/
DEFIANCE's dismasting brings up food for thought. Metals aboard small boats are mostly out of sight, out of mind, and often forgotten with the assumption "it's metal, it can't break."
However, as is often distressingly found, there is no metal, even stainless steel, that does not suffer effects from corrosion and/or fatigue.
Out-of-sight metals include keel bolts, internal rudder structure, bronze propeller struts and thru-hulls, all of which can fail over time. As can rusty steel mast steps, the bulkhead side of stainless steel chainplates, and headstay and backstay tangs, where they are bent to conform to the sheer angle.
If there is welding involved, salt water can readily turn submerged metal to swiss cheese. In the 1978 SHTP a weldment failure took WILDFLOWER's new Sail-O-Mat anodidized aluminum windvane oar off the stern, rendering it useless.
A classic metal failure, due to flexing fatigue, is a keel stepped, aluminum mast at deck level, as well as an aluminum boom at the boom vang. Both areas should be checked for hidden cracks.
I got the feeling that DEFIANCE's broken headstay toggle was totally unexpected, as it was new, and oversized. Bill reported that at the time, he had DEFIANCE's running backstays led outboard to the amas (outriggers). Apparently, the amas would flex in a seaway, loosening and tightening the runners, causing the headstay to sag and tighten when sailing to windward, eventually fatiguing the toggle. DEFIANCE's runners now are led directly aft to the vaka (main hull).
I had a similar fatigue failure on my previous WILDFLOWER. I was 34 days, mostly closehauled on starboard tack, from New Zealand to Hawaii. In Hawaii, I was surprised to find the
upper Sta-Loc terminal on my port side lower shroud had broken strands in my new and oversize 1x19 rigging. The lesson I gained from this is when crossing oceans, keep the loose leeward rigging from swaying back and forth by using "swifters," bungee cord or small diameter line wrapped around the leeward rigging to keep things snug.