Thursday, February 19, 2015
Deciding
Monday, January 19, 2009
Magnetic North






Tuesday, December 23, 2008
Summer Cruise Preparations
Here is the good ship Mariner being lifted out so that she can be waterblasted and placed in a safe cradle ready to have antifouling paint applied under the waterline. She will be out of water for the next few days and then its back in and off up the Northland coast to the Bay of Islands, a safe haven for day sailing and holidaying.Thursday, December 4, 2008
Never Underestimate a Bus Driver
This nice looking double ended yacht in the foreground of the picture was recently launched here at Parua Bay which is about 15 Kilometres as the crow flies from Whangarei city.
The yacht was built by our school bus driver over a number of years. He is an experienced yachtsman who both designed and built the boat himself. Amateur yacht building is a bit of a tradition in New Zealand - its heyday was in the 1970s before the world went completely barmy, a time when people worked only 40 hours a week for a living wage and had time to indulge their passions and interests in building and creating. These days we are a society that seems to live to work rather than to work to live. More is better in all things is the clarion call to all this madness.
When the yacht was launched she was found to be out of trim - she was floating down at the bow. Unperturbed by this our bus driver took the boat out, took off the four or five tons of outside lead ballast and re - positioned it in the correct position after having the lead recast. " I thought the original calculations were correct" he said with a wry smile - "Was it a bit frustrating having to do all that extra work? " I asked him. "Not as much work as building the boat itself" he replied in a rather matter of fact way - bus drivers are like that, practical and down to earth - I have never been asked directions by a bus driver yet. They know what they're doing.
Saturday, October 25, 2008
The Americas Cup J - Class Boats
During the 1930s J-class yachts were built to race in the America's Cup. Only 10 were ever built as they were extremely expensive to build and maintain, especially in the post war years. They succeeded the 1883 Seawanhaka Rules 75-footers of 1920 and were replaced by the 12 - metre class yachts when the Cup was challenged again in 1958.
The J designation refers to the class of yacht defined by its sail area, displacement, length, and mast height, formally defined in the Universal Rule. When designing a J-class yacht builders would have to decide which characteristics to maximize to build the ideal yacht.
All three America's Cup races featuring J-class boats were won by the New York Yacht Club. In 1930 Enterprise defeated Shamrock V of the Royal Ulster Yacht Club. In 1934 Rainbow defeated Endeavour of the Royal Yacht Squadron. In 1937, at the peak of J-class racing, the "Super J," Ranger defeated Britain's Endeavour II.
Only three of the original yachts are still sailing today; Shamrock V, Velsheda and Endeavour. They have all undergone extensive restoration and rebuilding.
A replica of Ranger was launched in 2004. As of April 2008 another three yachts are being built or planned. These are Endeavour II, Lionheart and Svea. According to J-class regulations, any new yacht built must use existing designs from the 1930s.
Sunday, September 28, 2008
Boyhood Literature
This copy of the American "Yachting" magazine was first read by my father three months before I was born - note the price - they are now about $15 - $20NZ. Pretty pricey really, especially if you are a boat fanatic like myself. If I was really obsessive about purchasing every sailing magazine I laid eyes on I could easily spend in the region of one to two hundred dollars a month. But I don't. I am one of those people at the magazine stand who flicks through and only buys if there is something really interesting and valuable. I have learnt to use the library. Old sailing news is still good news in my book and well worth the wait. I sometimes take a stack home from the local library and saunter my way through them.Monday, September 15, 2008
Fantasy
Yacht 'Fantasy' circa 1948 Lyttleton Harbour - Photo from private collectionThis is the yacht 'Fantasy' sailing on Lyttleton harbour not long after she was launched. She was designed by the English naval architect Harrison Butler.
Harrison Butler designed all his yachts to a design rule he created called the Metacentric Rule. The rule was a mathematical equation relating to proportion that was meant to create the most efficient and fast hull for a given length. I think that the rule has now been discredited. Despite this the rule did have the byproduct of producing beautifully balanced hulls. My father who sailed on Fantasy said that she would sail herself to windward for long periods without anyone at the helm.
This characteristic is not something to be taken lightly as anyone who has sailed on an unbalanced boat will tell you. Many years ago I did a trip to the Pacific Islands in a beautiful looking yacht with very very bad "weather helm" i.e. the stronger it blew the more the boat wanted to rip the tiller out your hands and round up into the wind. Weather helm can be exhausting, especially in our case where we had lost our self steering wind vane in a storm and had to steer long watches for many days.
The curiously beautiful balance of Harrison Butlers boats is ascribed to the fact that the lines of the underwater plane of his hulls are symmetrical fore and aft. When you combine this symmetry with an above the waterline hull of non extreme type you have a hull whose balance is perfect when sailed upright and does not alter a lot when heeled.
In the UK many of HBs designs are considered classics and many have been restored and are still sailing.
By modern standards some of these older yacht designs do not give the same amount of accommodation for a given length, but their charm lies in their traditional design and very well mannered sailing behaviour.
