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Minggu, 31 Januari 2016

Header Photo Sea Island One Design Scow

Photo taken from an online article on the Rockville Regatta from The Post and Courier.


The previous header photo is of the Sea Island One-Design, a local class of large scows centered around the lowcountry South Carolina, specifically Bohicket Creek, Rockville. The 1948 design is attributed to New England naval architect, Henry Scheel but the lineage goes much farther back.

A sailing competition had started with two boats in 1890 and by the turn of the century the Rockville Regatta had quickly became a sailing contest between the towns that dotted these winding estuary fingers south of Charleston. (The Rockville Regatta also became the summer social event of the year with dances, parties, and romancing; a tradition which continues to this day, though considerably in excess - think the infield of the Kentucky Derby.) The scow shape came to the fore in the competition and Walter Eugene Townshend with his nephew, Oliver Seabrook,  managed to walk off with many of the Rockville Regatta trophies sailing their series of scows named Undine.

From the book Rockville by Alicia Anderson Thompson:
"In 1947, Ollie Seabrook took the best features of three of the fastest and  best sailing scows and gave them to Henry A. Scheel in Mystic, Connecticut, for him to create a set of plans that each island club could use to build a uniform sailboat. This three man scow was named Sea Island One Design, and it united the area yacht clubs, allowing for equal competition among the members to this day"


A scan from a sidebar article in Sailing World. The fleet has grown to nine with the addition of a new build in 2011.


There is a strong similarity of some of these pre-WWII South Carolina scows to the 1899 Charles D. Mowers Swallow scow, which was the second scow featured in The Rudders How-To-Build series. There was at least a borrowing of the general shape. Here are the sideviews of the two starting with the Swallow.


The 1931 Rockville Undine IV.


The 1947 Sea Island One-Design is a different design, though the parentage of the Swallow is very evident. The SIOD is shorter, the transom is wider and the topside panel straighter than that of the Swallow.

For more on the Mower Swallow scow, click here.



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Kamis, 28 Januari 2016

Optimist Gunwale looking for the perfect design

Thinking ahead to the time when we will add the gunwales (gunnels) has got my mind racing. I remember dinghies I sailed as a kid, and they always seemed to have some sizable gunwales to sit on. Some of the plywood Optimist Prams dont offer much surface area for the helmsmans backside. I know our kids will start out in light wind conditions, but it wont take long for them to want to sit on the high-side and hike while sailing.

In my searching for the best solution for this design I looked at the Club Racer by Bateau. They seem to have a comfy looking gunwale, so I looked into the way they created their version. A complete guide to the construction of the Club Racer is located at: http://www.latitude2739.com/club-racer.asp It is a really nice looking Optimist that is the same as the epoxy/wood version of the Optimist as described by the IODA standards. Bateau claims that it differs in that it is much easier to build and will be more durable, and last longer.

They start their process with corner braces cut at angles to the sides and bows to create the width that will be the gunwale. Plywood is used for this process, but I think we could use hardwood to accomplish this same design using glues and screws to bypassing the need to encase the area in epoxy.
All photos - Youth Sailing Foundation of Indian River unless otherwise noted.


To build up the width of the gunwale on the sides of the boat, they employ the use of plywood spacers to hold off the inner strake that will define the inner side of the gunwale. The picture below shows a double piece of 12mm plywood used as a spacer along with an inner and outer strake and rubrail of 12mm plywood. I believe that makes a total width of 3 inches.


The bow and transom are finished of in less thick manner shown below:


 

With the substructure of the gunwale finished it looks pretty nice. Ive been contemplating how well this design would look if we finished the gunwales without a cap piece of plywood. The plywood works well in the Club Racer because it will be sealed with epoxy. Our boats will not have epoxy, and this makes the finishing of the gunwale, perhaps a bit different.



The Club Racer is finished off with a plywood cap piece set in thickened epoxy, and then the edge is routed to 5mm radius for comfort and esthetics.



All this great information and pictures came from the Youth Sailing Foundation of Indian River Co. and their sister site Latitude 27/39 Sail Club.


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Jumat, 29 Mei 2015

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Sabtu, 23 Mei 2015

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Jumat, 22 Mei 2015

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Rabu, 20 Mei 2015

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Kamis, 14 Mei 2015

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Sabtu, 09 Mei 2015

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Senin, 04 Mei 2015

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Rabu, 29 April 2015

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Minggu, 12 April 2015

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Kamis, 26 Maret 2015

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Senin, 16 Maret 2015

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Kamis, 12 Maret 2015

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Sabtu, 07 Maret 2015

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Kamis, 05 Maret 2015

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