Friday, September 10, 2010

Coming Soon - S&S 30'


While we're revealing new projects today, here's a teaser for the new S&S30 we're about to roll out. More to follow soon.

Design 2752 - 48' Modern Classic


Here's an exciting project right out of the box, on her shake down sail. Designed for an unnamed client, here are some interesting points about this design:

~ The hull and deck are 100% carbon fiber - hull is infused and the deck is of pre-preg construction.
~ Carbon rig is by Hall Spars.
~ Sails are by North.
~ The headsail is hydraulically furled. The main halyard is handled by a captive winch at the base of the mast, also hydraulic. The main sheet is controlled by a hydraulic cylinder under the deck. The only sheets handled manually are the various headsails including the cruising jib (103% LP), racing genoa (135% LP) and cruising gennaker as can be seen in the above image.
~ The boat is equipped with hydraulic in-boom furling.
~ The propulsion system consists of a custom hydraulic rotational sail drive that is controlled in tandem with the bow thruster by a proportional joy stick. The boat can turn 360° while standing in place.
~ The battery bank is lithium ion.
~ Interior is butternut with raised and fielded panels.
~ Every detail onboard is custom designed and fabricated from the pedestal, engine panel, hydraulic panel, retractable anchor arm, portlights, chocks, hand grabs, bow light, stern light, scupper plates and so forth to the interior woodwork.
~ The boat is fast.


The steering pedestal is of special interest. We placed the wheel forward of the pedestal so one doesn't have to reach through the spokes to use the navigation and propulsion controls. In addition to being practical the effect is stunning. Here's a computer rendering.


Here's a 3D rendering of the interior. As good as this rendering looks the interior looks even better in real life.


Here's a schematic explaining the propulsion system. In simple terms an auxiliary diesel engine powers a hydraulic pump which is close coupled to the engine which in turn powers the thruster, sail drive and main halyard winch. In silent mode the battery bank powers a DC power pack which in turn powers the sailing hydraulics. The system is designed for extensive silent running. A small generator is used to charge the batteries. (Double click for bigger view).


Image Courtesy of Cabot Lyman

Principal Dimensions
LOA 48'-0"
LWL 35'-5"
Beam 12'-0"
Draft 7'-0"

Tartan 41 - Design 2095


I took this shot of this nice looking Tartan 41 while sailing in Oyster Bay. That's Seawanhaka Corinthian Yacht Club in the background. The Tartan 41 is a great classic S&S design. The boat was designed predominantly as a race boat. Here are some Designer's Remarks from 1972 about the design (click for bigger image).

Here's a nice shot showing the underwater shape.


And the General Arrangement.

Principal Dimensions
LOA 40'-8"
LWL 32'-7"
Beam 12'-3"
Draft 6'-4" (Various keel options were available)

Alsumar - Design 26


How great is this photograph? With reduced sail plan the boat is just chugging along nicely. I like the guy in the slicker standing to leeward of the deckhouse.

Looking at the general arrangement, for a boat built in 1935 the boat has a fairly modern layout. Note the engine room! How nice that would be to have on a boat of this size.


Here's an article from Yachting magazine. Double click for a larger image.


Please note the shallow draft of this boat at 5'-10" with the centerboard up. I also like the description of the doghouse: transom berth on one side and chart table on the other. This would make a great cruising boat.

The article makes mention of a "Nevins windlass". If you've never seen one of these here's a shot I took aboard Brilliant. It's a pretty robust looking affair.


A little bit about her history: She was built by Jacobsen & Peterson of Brooklyn, New York for a New York family. The boat's name was derived form the names of the three daughters, Alexis, Susan and Mary. The boat was purchased prior to World War II by the Secretary of the Air Force and renamed Gulf Stream. During the war the boat was commissioned by the Navy and sailed around the Gulf of Mexico searching for submarines.

Eventually the boat was left to languish until she was purchased by her current owners in 1991. The boat was completely restored with over 5 years and 30,000 hours of labor and is in mint condition. She is cruised extensively.

Principal Dimensions
LOA 70'-8"
LWL 50'-0"
Beam 15'-9"
Draft 5'-10"

Thursday, September 9, 2010

Monaco Yacht Show - Details

Monaco Yacht Show 2006

Just think, in 2 weeks we'll be attending and exhibiting at the Monaco Yacht Show - 2010. For those who are attending here's a map which shows the location of our design booth, and the location of the 52-meter sailing ketch Nazenin V. (Double click for larger image).

Nazenin V
Image courtesy Mark Lloyd

If you need tickets please contact me directly at: bjohnson@sparkmanstephens.com.

144' Minesweeper - Design 828

Minesweeper Alta

This wooden minesweeper was built in 1953 by Hodgdon Brothers/Goudy & Stevens of East Boothbay, Maine. She was in the service of the U.S. Navy for one year and then ownership transferred to the Belgian Navy where she served for twelve years. In 1966 ownership changed again to the Norwegian Navy. She was decommissioned in 1996 and is now a floating exhibit at the Oslo Maritime Cultural Center. She is occasionally called back into service for missions with the Navy. The boat was completely restored in 1997.

Here are the plans.


The hulls of these Sauda-Class minesweepers are completely non-magnetic. This means that in addition to having a wooden hull, all metal on board are non-magnetic such as copper, bronze or brass or non-magnetic steel.

There were ten boats in the Norwegian fleet, each named after a river in Norway.

11'-6" Dinghy - Design 20


This dinghy was designed in 1933 and named Snowball. It's a nice looking tender for rowing or sailing. We 3D modeled it and here are a few 3D renderings.

Principal Dimensions
LOA 11'-6"
Beam 4'-2"

D.U.K.W. - Design 402


The DUKW was conceived by the military who felt they needed an amphibious truck. In the early stages of World War II the military was enlisting the help of civilians in an effort to get military product from concept to production to the theater of war as quickly as possible. To that end three men were tapped for this project: Rod Stephens, Jr., Dennis Puletson and Frank Speir, all with specific talents. The first thing they did, and a smart move on their part, was to analyze what trucks currently in production could be used as a basis for the vehicle. To that end a GMC military six-wheel truck that was already in production as a military transport was selected and modified for their purposes, thus saving months, if not years off design and development time. 20,000 of these vehicles were produced by General Motors between 1942-1945 for all branches of the military.

The three men were awarded the Presidential Metal of Freedom for their efforts, the highest civilian award presented by the White House.

Rod's forte was in training men to use the vehicles. He was also instrumental in developing uses for the DUKW. Here two are used with a cross-bracing apparatus to transport a small tank across water and that's Rod showing them how it's done (in the natty overcoat). Note the tank's barrel has been removed for shipping.


Here's an image of two units being used to transport a truck across a lake. Incidentally I believe the truck they are transporting is the very same GMC chassis used for the DUKW.


And here we see a crane in use and some jury-rigged form of stabilizers.


Here's the same set up in the water.


Here's a schematic.


If you're interested in this subject make sure to read the chapter about the DUKW in Rod's book. Click here to access the book. It's the final chapter starting on page 99.

And finally here's the vehicle in use.

Wednesday, September 8, 2010

NY32s - Running Together


Here's a couple of shots of NY32, design #125, leaving Mystic Seaport after our 75th Anniversary party in 2004. More to come regarding NY32...

Mystic Seaport Tribute to OJS, II

OJS, II Sailing on Dorade, 2006
Image by Houpla

As we approach the anniversary of the death of Olin J. Stephens, here's a nice video by the Mystic Seaport. Click here to access.

Olin J. Stephens, II
April 13, 1908 - September 13, 2008

Design 374 - Sub Chaser


Here's a 110' submarine-chaser, designed in 1940.

Design 68 - Dark Harbor 20


This design generates more inquiries than any other: The Dark Harbor 20. A bit of background: In 1932 a committee composed of members of local Long Island Sound yacht clubs was formed with the hopes of developing a new class of racing sailboat to compete with Atlantics and Sound Interclubs. The yacht clubs included Seawanhaka, Larchmont and American. One of the proposals was from the boards of Sparkman & Stephens. This proposal evolved into the Dark Harbor 20 class.

Twenty-one Dark Harbor 20s were built in the first half of the 20th century. The most active fleet is from the Tarratine Yacht Club of Isleboro, Maine with almost 20 boats still actively racing.

Here are the plans.

Construction Plan

Sail Plan

Here's a nice 3D model of the hull and keel shape.


I will make a future posting regarding the new fiberglass Dark Harbor 20 that is now available. More to follow.

Principal Dimensions
LOA 30'-0"
LWL 20'-0"
Beam 6'-9"
Draft 4'-1"
Displacement 5,200 lbs
Ballast 2,620 lbs
Sail Area 357 sq ft

Profile Rendering

Rod, Bill Shaw and Olin


This image of Rod, Bill Shaw and Olin was taken around 1955. Bill Shaw was a first rate designer. After 12 years at Sparkman & Stephens he left the firm to take over as Chief Designer at Pearson Yachts. He retired from Pearson in 1991 as General Manager. A number of notable designs were developed with Bill's influence while at S&S.

Stephens Brothers at Work


Here's an extremely rare image of Olin and Rod at the drafting boards. My supposition is that this is at the first office located right across the street from where we are today at 11 East 44th Street. I can't tell you who the other gentlemen are.

Jessica Watson Visit

Jessica Reviewing Plans for S&S34
Image Courtesy of Andrew Fraser

Yesterday we had a visit from Jessica Watson and her agent, Andrew Fraser (5 Oceans Media). Very pleasant people. Jessica is a very nice, and completely self assured young lady. I would guess one would need to be to sail around the world alone in a 34' boat at her age!

Aside from seeing the original plans for the S&S34, we were able to give her an overview of projects we are currently working on (she was more interested in this subject than the 34!). We were able to get a peek at the New York Yacht Club model room but the NYYC is undergoing a renovation and they threw us out of there pretty quickly (unfortunately).

We gave her a nice Musto jacket with the Sparkman & Stephens logo as a memento.

You can follow her blog by clicking here.

Tuesday, September 7, 2010

Design 226 - Tomahawk

Images courtesy of Ocean Yacht Co.

This nice looking yawl was built in 1938 by Karl E. Kistler & Barrett Boat Works of Spring Lake, Michigan. This mahogany over white oak framed beauty was restored in 2004-2006 by Brian Pope and Ocean Yacht Company in Cornwall, England.

General Arrangement & Inboard Profile

Sail Plan

The restoration was a complete success. Here's an interior shot.


Principal Dimensions
LOA 48'-3"
LWL 34'-0"
Beam 11'-2"
Draft 7'-5"