11 meter yacht

11M Naval Special Warfare Rigid Inflatable Boat

Brief specifications.

11M Naval Special Warfare Rigid Inflatable Boat Drawings

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Review of 11: Metre One Design

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all. The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.

The boat is equipped with one cabin and a galley.

The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.

Unknown keel type

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can only enter major marinas as the draft is about 1.80 - 1.90 meter (5.91 - 6.21 ft) dependent on the load. See immersion rate below.

An outboard motor is often used on this boat. In that case 11: Metre One Design will typically require a power of 3 - 4 hp, alternatively 71 - 85 lbs thrust if you prefer an electrical motor. Electric outboards are becoming popular for sailboat owners who want clean instant power with less noise and no exhaust fumes.

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Capsize Screening Formula (CSF)?

The capsize screening value for 11: Metre One Design is 2.22, indicating that this boat would not be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.0 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for 11: Metre One Design is about 141 kg/cm, alternatively 790 lbs/inch. Meaning: if you load 141 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 790 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is Motion Comfort Ratio (MCR)?

What is L/B (Length Beam Ratio)?

What is a Ballast Ratio?

What is Displacement Length Ratio?

What is SA/D (Sail Area Displacement ratio)?

Maintenance

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 27m 2 (290 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.

Are your sails worn out? You might find your next sail here: Sails for Sale

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

We are always looking for new photos. If you can contribute with photos for 11: Metre One Design it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us . Criticism helps us to improve.

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• Sailboat Guide

11 Meter is a 33 ′ 9 ″ / 10.3 m monohull sailboat designed by Ron Holland and built by Precision Boat Works starting in 1990.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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• About Sailboat Guide

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FOR SALE   SOLD

11:Metre One Design

FUN  -  FAST

RACE READY  -  PROVEN WINNER

EXCELLENT CONDITION  -  FRESH WATER ONLY

The 11:Metre One Design is a great boat for racing and day sailing.  Comfortable, responsive and easy to sail. 

Fresh bottom job, full instrumentation, Genoa, high-tech lines (several new), many improvements, outboard, stereo, trailer, LOTS of parts & extras.  Very consistently and well maintained.  Wasabi has been a very active and successful  racer since 1993. The masthead spinnaker and oversized pole makes downwind sailing a thrill. Acceleration is superior and she planes readily in moderate air.

WASABI - THE MOVIE (Smaller, dial-up version)

Link to The WASABI team web site Link to the sales brochure http://www.sailingtexas.com/s11metreonedesign100.html

(click photo to see a larger image)

Length: 33'-8" Beam: 8'-2" Draft: 5'-11" Displacement: 3,600 pounds ISAF International one-design Class Designer: Ron Holland, Sweden Builder: Precision Yachts, Florida Lake Travis PHRF: 69

Package Price: $22,000

Location: Austin, TX (Lake Travis)

Contact: John Mandell, 512-258-2008 [email protected]

Additional details:

• Sail inventory:     Main: 3, full battens.  Current main in excellent condition     Genoa: 3 (one very good, one heavy, one tired)     Jib: 3 (one excellent class sail, one experimental, one tired)     Spinnaker: 2 (reaching & running)  Both old but in good, competitive condition  
• Instrumentation:     KVH Fluxgate digital compass, mast mount display     KVH Quadro Network         2 mast mount (pkus one spare display)         Masthead sensors (app wind speed/direction)         Speed transducer (thru-hull)         Depth transducer (mounted internally)  
• AM/FM/Cassette stereo system     2 cockpit speakers behind removable covers         (protection while racing!)     Volume & power switch at helm console  
• Galvanized dual axle trailer with surge brakes  
• 5 HP Nissan Outboard  
• Interior cushions (still in original plastic wrap)  
• LOTS of documentation & spare parts (spare mast, spare spin pole)  
• USCG documented vessel     TP&W Registered in Texas     Passed TX safety inspection

History & disclosure:

• Boat was bought new in 1993, outfitted and launched in Lake Travis, where she has remained.  Normally stored in a wet slip, she is pulled for inspection and drying every year.  
• In early production, a design flaw led to several broken masts, including mine (1994).  The mast was successfully repaired and used for 10 years.  A new style mast was installed in 2004.  The repaired mast is the spare.  
• In 1995, Wasabi (on starboard tack!) was hit by a competitor.  There was no structural damage, and an excellent repair was made.  Other than a cosmetic variation in the non-skid, the repair is not obvious from the inside or outside.

11:Metre Sailboat information

11:Meter 11 Metre 11 Meter 11Metre 11Meter

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Gleam, US-11

Built in 1937 according to the International Third Rule.

1937-1942: Clinton Crane built Gleam for his own use using an innovative method of tank testing against Seven Seas . She had a new lead keel in 1939 and was also dismasted that year. Her mast was replaced with one built for Vim . Crane shared the findings of his extensive testing with Olin Stephens and Francis Herreshoff. She won the Astor Cup (NYYC) in 1937.

1943-1952: Gleam was purchased by B. Devereaux Barker and B. Devereaux Barker Jr. of Marblehead, MA– they installed an engine in 1940. In 1950 John N. Potter of Darien, CT purchased Gleam , renamed her Charlotte II and replaced her engine.

1953-1975: W. Mahlon Dickerson purchased, restored her name to Gleam and brought her home to Oyster Bay, NY.  She was the trial horse for Vim and Sceptre in the 1958 America’s Cup and for Gretel in the 1962 Cup.

1975-2019: Robert Tiedemann (now deceased) purchased Gleam and brought her to Newport, RI. He gave her a full restoration and a new engine. Tiedemann is often credited for the rebirth of the 12 Metre Fleet in Newport, RI as we know it today. After his death, his widow Elizabeth Tiedemann DuPont continued to charter US-11 through their company Seascope Yacht Charters in Newport, RI.

2020: Gleam was purchased by Andy Tyska of Bristol Marine who will undertake a major refit at their Boothbay Harbor (ME) Shipyard. During the winter of 2020 her hull will be repaired enabling her to sail in Maine waters during the summer of 2021. The following winter (2021), she is set to receive a new deck and a restoration of her elegant interior. If all goes to plan, she will return Newport for the 2022 sailing season.

*Content courtesy: The Twelve Metre Class by Dyer Jones & Luigi Lang

Jump to Twelve Metre Yacht Club, Newport Station Fleet page for Gleam (US-11)

HISTORIC AMERICA’S CUP 12-METRES LIGHT UP THE PUIG VELA CLÀSSICA

For fans of the America’s Cup and the competition’s rich history, this week in Barcelona has been a feast for the eyes. The Puig Vela Clàssica regatta, run by the outstanding Real Club Náutico Barcelona, has brought some of the world’s finest classic yachts together alongside a magnificent fleet of 12 Metre Class yachts that competed in the America’s Cup from 1958 through to 1987.

For many, the 12 Metre Class era was iconic, especially with the Cup changing hands after 132 years of total dominance by the New York Yacht Club when Australia II defeated Liberty in 1983. The class survived one more America’s Cup, down in the big winds and waves of Fremantle, Perth in 1987, and that regatta remains ingrained in many Cup watchers' memories as a stand-out spectacle.

Several of the boats from that 1987 regatta competed in Barcelona, including the revered Kookaburra II, French Kiss, Crusader, South Australia and Kiwi Magic who duked it out for the honours in Division A of the Puig Vela Clàssica. Furthermore, in Division D, there were some super-classic 12 Metres, with the likes of Northern Light, Vim and Jenetta enjoying incredibly close racing and rolling back the years to a bygone era.

An interesting aside in the modern 12 Metres is the number of original crew that came back to compete here in Barcelona, still racing at the highest level. Onboard French Kiss, the Phillipe Briand-designed French Challenger that underwent radical stern-surgery during the 1987 regatta but has thankfully been restored to its original flowing lines, the legendary Olympic silver medallist skipper Marc Pajot was on the wheel for the regatta.

Speaking about what it means to be back, Pajot commented: “It’s a very nice memory for me. I was an Olympic sailor, switched to ocean sailing competing around the world, and finally ended up in the America’s Cup with French Kiss in Fremantle in 1987. Five of those crew members are now competing in Barcelona – 37 years later! It’s an excellent regatta with a very large fleet, and this year, a unique opportunity to enjoy the America’s Cup in Barcelona.”

For Torben Grael, one of the world’s top sailors and a tactician for the Italian Luna Rossa campaigns in the 2000, 2003 and 2007 America’s Cups, the chance to sail Kookaburra II, the current 12 Metre World Champion owned by Luna Rossa Prada Pirelli Team Principal Patrizio Bertelli, is all consuming:

“In the recent World Championship (Porquerolles, France), we debuted a reconfiguration of the boat because when it was purchased, it still had the setup from Fremantle 1987. Our program is Mediterranean and sometimes in Newport, where the wind is much lighter. We have changed the keel and other things, and we are getting to know the boat. The 12 Metres are beautiful boats, requiring a good and trained crew for manoeuvres. The races are very close and beautiful.”

As the regatta concluded, it was the beautiful ‘Kookaburra II’ that secured the win scoring just seven points, to close out the series ahead of Johan Blanch’s ‘Kiwi Magic’, whilst Marc Pajot’s ‘French Kiss’ completed the podium in third overall.

In the vintage 12 Metre fleet - grouped in Division D - Hans Eliasson’s ‘Northern Light’ won the final race and secured the title with just six points, whilst James Patrick’s Vim confirm their second place, with Thomas Muller’s ‘Jenetta’ completing the podium. 

The Real Club Náutico Barcelona brought down the curtain on the XVII Puig Vela Clàssica Barcelona Regatta, the XVII (27 th ) running of this international event that is part of the official RFEV calendar and counts towards the II International CIM Championship (International Mediterranean Committee), as well as the XIII Mare Nostrum Trophy – Spanish Cup of Classic Boats.

The awards ceremony was held in the presence of Marc Puig, Executive Chairman of Puig, Jordi Puig, President of the Real Club Náutico de Barcelona, Josep Mª Isern, President of the Catalan Sailing Federation, Xavier Torres, Vice President of the Spanish Sailing Federation, Javier Moreno, Naval Commander of Barcelona, Leonardo García de Vicentis, President of AEBEC, Andrés de León, Vice President of CIM, and Pablo Garriga, Commodore of RCNB.

A glittering end to a fabulous regatta with the perfect venue and hosts for an extraordinary festival of sailing.

For more information: www.puigvelaclassica.com

(Magnus Wheatley)