Saturday, February 18, 2012

Design 2573 - Swiftships 105' Trideck Motoryacht


This preliminary design was commissioned by Swiftships of Morgan City, Louisiana in 1990. My assumption is that it was prepared for a client of theirs. The boat was designed to be constructed of fiberglass. The project was taken no further than what you see here and the associated naval architecture required to produce the hull form, calculate propulsion requirements, fuel needs and so forth.

It is extremely difficult to achieve a sleek looking trideck motoryacht at 105' without the boat looking very bulky. The result was reasonably attractive.

Here are the accommodations plans.


Principal Dimensions
LOA 105'-0"
LWL 93'-3"
Beam 24'-9"
Draft 10'-6"
Displacement (1/2 load) 253,400 lbs
Fuel Oil Capacity 6,000 gals
Fresh Water Capacity 1,000 gals
Propulsion Twin Detroit 16V149TI - 2,200 hp each @ 2,100 rpm


Cruise Speed 22 knots
Max Speed 25+ knots

Friday, February 17, 2012

Design 1998-C1 - Alpa A42


This past weekend we posted an article about design #1998, a boat named Dida II. She was the prototype for the boat you see here which is described in all of our records as a "motorsailer". It's a bit hard to believe that these boats came from the same tooling as Dida II as the boats are just so different but apparently someone felt a motorsailer model would be a good seller.

Clearly only the hull mold was used. It was a fairly common trick to add headroom by adding a vertical component to the deck above the original sheer and that's just what was done here. That did allow them to add some hull ports which must have made the accommodations much brighter. Alpa used this trick in their other models such as the Alpa 36, design #2172, Alpa 21, design #2204, Alpa A27, design #2241 and the Alpa A34, design #2242.

Here are our own concise designer's comments from the time.


The production run began in 1973 and 8 boats were built to the design.

Here's the company brochure.


Here are the plans.


And here's a shot from the Genoa Boat Show of 1973 which gives a great view of her deck layout.


Principal Dimensions
LOA 40'-1"
LWL 32'-3"
Beam 11'-4"
Draft 5'-10"
Displacement 17,100 lbs
Ballast 9,000 lbs
Sail Area 874 sq ft

More About Gosling - Design 2070


About a year ago we posted an article about the 6-meter yacht Gosling, design #2070. We received the following note from her owner along with the image shown above.

Dear Sparkman & Stephens,

With great delight I found your article about design 2070 "Gosling" on your blog. I currently own the boat and, indeed, she is still on Lake Constance. Maybe you're interested what she currently looks like, I enclose a picture. The little cabin has been added in the mid eighties together with a small engine to make her more "family suited" which worked well for the past twenty years. Still a real beauty!

Congratulations to your blog, it's very very interesting!


Yours sincerely,

Owner of Gosling

Thanks for reading and thank you for sending us the image.

Design 2571 - Preliminary Design of a Hinckley 54' Sloop


I don't recall the logic in designating this boat a 54'er, which is her length on deck, versus her overall length of 57' but there must have been some marketing guru involved. This preliminary design was prepared for the Hinckley Company of Maine but never came to fruition. The year was 1990.

Here is the general arrangement plan.


Principal Dimensions
LOA 57'-3"
LWL 42'-9"
Beam 15'-6"
Draft 5'-11" (board up) 11'-2" (board down)
Displacement 44,966 lbs
Ballast 17,000 lbs
Sail Area 1,544 sq ft

Thursday, February 16, 2012

Clarity on Catalina 38

Catalina 38

After our posting yesterday about design #1903, the Hughes 38, we received an inquiry from a blog reader as follows:

"Didn't the Hughes 38 go forward to become the Catalina 38 and was successfully raced in the Congressional Cup for many years? How did that transition take place from the Hughes 38 to the C 38 "?

It's a good question but the answer is no. The Catalina 38 was actually a development of the Yankee 38, design #2094-C2. The story is that Frank Butler of Catalina purchased the molds from Yankee Yachts and started building the boats. When he called the firm and asked about advertising the boat as an S&S design, he apparently balked at the royalty and as a result the boats were advertised as designed by Frank Butler, as can be seen in the brochure below.


Granted Butler redesigned the deckhouse and made other changes. More information can be found on the Catalina 38 international Association website by clicking here.

Principal Dimensions
LOA 38'-2"
LWL 30'-3"
Beam 11'-10"
Draft 6'-9" (deep keel) 4'-11" (shoal draft keel)
Displacement 15,900 lbs (deep keel) 16,700 lbs (shoal draft keel)
Ballast 6,850 lbs (deep keel) 7,650 lbs (shoal draft keel)
Sail Area 639 sq ft

Wednesday, February 15, 2012

More on Hughes 38 - Design 1903


We posted an article earlier about the Hughes 38, design, #1903. Trying to follow the history of this design and the other Hughes models generally leads to confusion for many owners.

Here's a little history:
Hughes Boat Works of Canada was one of the largest production boatbuilders for a number of years in the 1970s. And yes it is true that the company was started by the Howard Hughes (no relation to the famous aviator) and his brother Peter. Initially the brothers designed their own products which ranged from small dinghies to smaller sailing yachts up to around 29' length overall. Once they ventured into the larger sized boats they enlisted the help of the firm and from that a handful of models were produced as follows:

Design #1903, Northstar 38, also known as Hughes 38 and the subject of this article
Design #1956, Hughes 48
Design #2098-C6, Northstar 1000
Design #2134, Northstar 80/20
Design #2135, Northstar 500, also know as Northstar 25
Design #2135-C3, Northstar 600, also known as Northstar 26 and Hughes 26
Design #2166, Northstar 35, also known as Hughes 35

The confusion lies in all of the name changes. As we have mentioned in previous postings, in 1969 Hughes Boat Works Ltd was sold to US Steel. Both Hughes brothers stayed with the company until 1971, when US Steel changed the name of the company to Northstar Yachts Ltd. Then in 1977 Howard Hughes purchased Northstar back again and renamed it Hughes Boatworks, Inc, a close variation of the original name. It was then that the names changed for example the Northstar 600 became the H26.

Here are some images of the later iteration Hughes 38, around 1977.


Note the deckhouse was changed significantly: the small step was eliminated in the house top and the windows were reconfigured. The layout was also changed as can be seen in the brochure shown below.


Thank you to the owners who have been kind enough to send us images of their boats.

Tuesday, February 14, 2012

Update on S&S 30


We receive a lot of inquiries about the S&S 30 asking about the status regarding production. We are pleased to report that the tooling is now under construction. We are still targeting having a boat on the water in time for the fall boat shows. For more information please feel free to call us directly at +1-203-687-4700 or email us at: ss30@sparkmanstephens.com.

Here is a review by Robert Perry of Sailing Magazine that can be found in the current (March 2012) issue. Please double click for zoom.


For plans, additional images, specifications and project history, please visit the Sparkman & Stephens 30 website at www.sparkmanstephens.com/ss30.

Offered at $149,000, sail away price.

More about Oho - Design 757


We occasionally hear from owners who have created websites about their boats. This one deserves special mention. The website is about the classic S&S sloop, Oho, design #757. There are some great sailing shots like the one shown above plus some historical data.

Click here to access the website.

Here's an article about the boat we found in the files that we failed to include in the original posting. Please double click for zoom.

Monday, February 13, 2012

Design 2397 - Tartan 3000


The Tartan 30 was designed in 1971. She was S&S design #2016. Ten years and over 600 boats later Tartan asked the firm to design a more modern interpretation of that model, the Tartan 3000.

Here are some designer's comments from the time of the boat's introduction. Please double click for zoom.


And the Tartan 3000 brochure.


97 boats were delivered during a production run that started in 1981 and ended in 1988.

Here are the plans.


Principal Dimensions
LOA 30'-0"
LWL 25'-3"
Beam 10'-1"
Draft 5'-2" (deep keel) 4'-1" (Scheel keel)
Displacement 7,950 lbs
Ballast 3,830 lbs
Sail Area 441 sq ft

Sunday, February 12, 2012

Design 60 - Proposed 72' Schooner


We can't tell you much about this preliminary design. She was designed in 1934 for a Mr. George Ottley. The boat was never built. What is interesting is that the design came directly on the heels of design #59, the famous schooner Santana. Perhaps Mr. Ottley liked what he saw in the yachting magazines?

The image quality is very poor. The scan was produced from one of our microfiche files and is of an original plan that is in poor condition in general. It is still worthy of study.

The general arrangement reveals a very luxurious 3 cabin layout. I like the two comfortable chairs flanking a side table on starboard in the salon, a very common feature in many yachts today. If you look closely you can see the skylight straddling the two guest cabins. The outline shows what I assume to be a set of opening hatches, with even one pane in the guest head.

There is a separate machinery space and crew accommodations for 4. The completely flush deck would have produced a beautiful profile.

The plan list (below) shows that 2 arrangements were produced, probably early alternative iterations before the General Arrangement & Inboard Profile plan you see here was generated. I will try to dig up the sail plans and get them scanned, and posted.


Principal Dimensions
LOA 71'-11"
LWL 56'-6"
Beam 16'-6"
Draft 9'-8"