David Thatcher wrote:
Following on from Annie's previous comments I can think of two boats which would probably not now meet the bureaucratic requirements for an offshore cruiser but nevertheless have achieved very significant trans ocean voyages. The first is the 21' Wharram Tiki 21, Cooking Fat, which completed a circumnavigation, although I understand not necessarily with the approval of the designer. Secondly is Rosie Swale who along with her husband and two young children sailed non-stop from Sydney Australia to England via Cape Horn during the early 1970's in a standard 30' bridge-deck catamaran. This is through the roaring 40s in a vessel which many would consider unsuitable for southern ocean sailing.
Both of these example demonstrate that in addition to having a seaworthy vessel, the other important component of successful offshore sailing is the matter of seamanship.
Cooking Fat also went on to take second place in the 2010 Jester Challenge, sailing to windward across the North Atlantic in 34 days. His return passage to England took just 23 days. I assisted Rosie and Colin Swale refit
Annaliese in Sydney for her Cape Horn voyage. One of the things we did was to glass stiffeners between the huge windows, and to bolt plywood over them. You could flex the cabin sides easily with your fingers beforehand. David Lewis, who was there at the same time preparing
Icebird for the Antarctic (he passed me on to Rosie when he left) begged them not to go, saying the boat would be matchwood in a serious gale down there. He was so concerned he gave them his Gibson Girl emergency radio transmitter. Ironically, they had no real problems, while he, having left earlier, in the tempestuous Southern Ocean spring months, pitchpoled and struggled to survive. Bill King also rounded Cape Horn that summer on
Galway Blazer, and he mentioned that the weather was exceptionally mild, with moderate winds and sunshine much of the way.
I have met a number of tiny, seemingly fragile boats successfully crossing oceans over the years. A common theme in their stories is that they know their limitations and heave-to early, very occasionally having to run off with drogues for survival. One friend with an open cockpit only ran off once in three circumnavigations, but hove to many times. There is an old Chinese proverb that says a small weakness can become a great strength, because it sharpens your focus and strategic thinking. Canny seamanship can take you a long way. I think Sib-Lim is quite capable of ocean cruising, and Sib-Long, to use Arne's amusing name for the 9m version, would be close to ideal. Heave to early, slide sideways easily with your shallow draft, to create a nice slick to windward, and put the billy on. Roger Taylor did it many times on Mingming. Have a drogue handy, just to cover your options.
The real challenge of ocean cruising in my opinion is not danger but discomfort. Sorting out your systems to minimize discomfort is an art-form, and the mark of great seamanship. Mike Richey came close to perfecting this on Jester, as did Roger Taylor. Junk rigs, and the ability to sail the boat without going on deck, are a major advantage here, as is a design capable of heaving to. These are my basic criteria, to which I'd add small portholes, sturdy hatches and a robust rudder, being something of a chicken. With these things sorted, very small yachts are perfectly safe crossing oceans.
I have been in two survival storms at sea (not counting cyclones up mangrove creeks), and agree with David Tyler that this indicates carelessness. The first was in early April, 1974, when I ran into a cyclone in the northern Tasman Sea - it was too early to be out there. The second was deep in the Southern Ocean in late autumn, 1980, too late to be down there. My joking rule of thumb is that you are allowed one survival storm every 100,000 miles, or you are doing something wrong.
PS: Perhaps one could also say that the skipper is the most important criterion for deciding if a boat is capable of crossing oceans!