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Thread: Once in a Blue Moon: The 2012 Ronstan Bridge to Bridge

  1. #1
    despondent correspondent Photoboy's Avatar
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    Once in a Blue Moon: The 2012 Ronstan Bridge to Bridge

    A certain amount of lunacy abounds whenever a blue moon arrives. Add on top of that 20 plus kiteboarders, a dozen plus windsurfers an AC 45 or two, a foiling kite trimaran, a Hobie Trifoiler, a Pro Sail 40, an Extreme 40, an SL33 and 12-25 18 foot skiffs and top it off with the worlds fastest sailing vessel all racing from the Golden Gate to the Bay Bridge and what do you have?


    l'hydroptere DCNS aerials over SF Bay gallery

    SAN FRANCISCO (August 30, 2012) – On Friday, the world's fastest sailing boat, l'Hydropère DCNS plans to establish at least one Yacht Racing Association certifiable San Francisco Bay speed sailing record. Subject to weather and finalization of details, the crew -- which includes world-renown sailors Alain Thébault, Yves Parlier, Jean Le Cam, and Jacques Vincent -- will make several speed runs on a 1 mile course along San Francisco’s northern waterfront around 2:00 p.m. Then around 5:30 p.m., wind permitting, the boat may attempt a bridge-to-bridge speed run just before the start of the annual speed-crazy Ronstan Bridge to Bridge Race. (The Nespresso International 18 skiff race will also provide thrills and spills 3 p.m. to 5 p.m.)

    The l'Hydroptère DCNS speed would be a record that any other boat, including an America’s Cup AC72, might attempt to beat.

    In speed testing runs yesterday in winds just above 20 knots, the boat reached 44.5 knots driven by skipper Alain Thébault and with the CEO of America’s Cup team Artemis Racing, Paul Cayard, aboard. That's more than 20 percent faster than even the bay's high speed ferries (which run at 36 knots). In heavy wind the boat has a top end potential of 61 knots (more than 70 mph). America's Cup teams are interested in learning about Hydroptere's hydrofoiling technology, and there is evidence that some have been experimenting with hydrofoils.

    L'Hydroptère DCNS has a California base in Long Beach but is in San Francisco Bay for heavy wind testing and training as it prepares to break the speed record from Los Angeles to Honolulu. It is moored at Corinthian Yacht Club in Tiburon, Calif.
    ~ Paul Oliva US Press Attache'~
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  2. #2
    despondent correspondent Photoboy's Avatar
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    l’Hydroptère DCNS | Fastest sailboat on the planet
    l'Hydroptère DCNS is the world's fastest sailing boat. In 2009 she reached a sustained speed of
    50.17 knots (58 mph) over a one nautical mile course, as ratified by the World Sailing Speed Record
    Council, and she has reached a top speed of 56 knots (64.4 mph).
    Name: From Greek hydros (water) + ptere (wing)
    Type of boat: Hydrofoiling trimaran
    Power: Sail only, no motor

    Milestones: Concept 1983, working model 1985,
    construction begins 1993, 1st flight 1994, 1st record
    attempt 1998, English Channel record 2005, 500m &
    1 nautical mile records 2007, 50 kt barrier and 500m &
    1nm records broken 2009, DCNS becomes main
    sponsor 2012

    Developer: Alain Thébault (age 50, Quiberon, France)

    Description: 60 feet long, 79 feet wide, and over nine stories tall, the three-hulled boat combines
    aerospace and marine technologies, using hydrofoils and a DCNS-developed, computer-aided
    stabilization system to lift the boat and attain stable, wind-powered high speeds on the open ocean.
    Airbus-built cross-beams connect a central hull and two floats, called amas.
    Principal sponsor and advanced technology supplier: DCNS Group (, a
    leading global producer of naval defence and marine renewable energy systems headquartered in
    France. DCNS constructed the main hull in 1993 at its Lorient shipyard in Brittany, France. Using a
    revolutionary carbon-composite process, the hull was so advanced it's the only original element still
    used in the current boat. DCNS developed and installed tthe stabilization system in 2012.

    Why is l'Hydroptère DCNS important?

    Stable high speed over open ocean waves is the most difficult engineering and fluid dynamics
    challenge for either motor- or sail-powered vessels. High speed over thousands of miles without
    massive fuel consumption -- or zero fuel consumption -- is elusive. Kiteboards broke the sail-powered
    record set by l'Hydroptère DCNS, but at a special speed track in Namibia. The America's Cup AC72
    intends to be the fastest inshore raceboat class on protected waters. By contrast, L'Hydroptère DCNS
    plans to break ocean speed records, beginning with the Los Angeles to Honolulu "Transpac" record.

    Why is l'Hydroptère DCNS in California?
    The boat was shipped to Los Angeles in July 2012 for assembly, installation of new systems, and
    Pacific Ocean testing in her bid to break the Transpacific world speed sailing record. Deprived of a
    favorable weather window for the Transpac attempt, the boat sailed under wind power alone from its
    Long Beach base to San Francisco to test its systems on a grueling extended upwind open ocean
    passage, crossing under the Golden Gate Bridge at approximately 1:15 a.m. on Aug. 20, 2012. It is
    moored at the Corinthian Yacht Club (Tiburon, Calif.), for speed trials on San Francisco Bay, including
    establishment of a 1 nautical mile speed record on the bay.
    Hull length: 60 ft.
    Overall length: 74.7 ft.
    Beam (width): 79 ft.
    Mast: 92 ft.
    Draft (depth) foils down: 14 ft. 10 in.
    Draft, foils up: 5 ft.
    Length of the foils: 19.7 ft.
    Height of crew over water: Up to 20 ft.
    Weight: 7.5 tons
    Min. windspeed for takeoff: 12 kts
    Ratio boatspeed to wind: 2x windspeed
    Max. speed: 56 kts / 65 mph
    Max. avg. 1-mile speed: 50.17 kts / 58 mph
    Gennaker area: 3,391 s.f.
    Mainsail area: 1,991 s.f.
    Max. sail area: 6,034 s.f.
    Offshore crew: 5
    Speed record crew: 11
    Architects: VPLP, HDS, Hydroptère team (incl. Alain
    de Bergh and Philippe Perrier)
    Shipyards: DCNS Lorient (central hull), shipyard
    Decision (floats), Airbus Nantes (crossbeams),
    shipyard B&B + Airbus Nantes (foils and rudder),
    Lorimat (mast), Legrand & Revigny (strain
    absorbers), North Sails and Incidences (sails)
    Measurement system: HBM
    Materials: carbon and titanium
    Building cost: priceless (25 years of development)

    Fun facts:

    In flight, only 21.5 s.f. of the boat's surface contacts the water. That's about the size of a dining room table.

    l’Hydroptère DCNS accelerates faster than a 500 horsepower speedboat.

    l’Hydroptère DCNS is piloted like a jet plane in three dimensions with a joystick that manages the boat ‘s balance.

    Real-time sensors continuously calculate 30 different stress measurements in flight.

    The boat is equipped with an inertial unit from OCTANS that instantly senses changes in movement.

    Strain absorbers on the foils are designed on the principle of aircraft landing gear. They absorb 32 tons of pressure.

    There can be up to 48 tons of pressure on the bindings that maintain the crossbeam.

    The bindings of the mainsheet traveler (holding down the sail at the back of the boat) are designed to withstand 100 tons.

    There is only 100 s.f. of living space in the central hull, probably smaller than your bedroom.

    About the Transpac record The Los Angeles to Honolulu speed record is called the "Transpac"
    record based on the traditional course of the biennial Los Angeles to Honolulu Transpac race. It runs
    2,215 nautical miles from Point Fermin lighthouse in Los Angeles to Honolulu's Diamond Head
    lighthouse. The current record ratified by the World Sailing Speed Record Council
    ( is 4 days, 19 hours, 31 minutes and 37 seconds. The record was set
    November 2005 by Olivier de Kersauson aboard the 90-foot trimaran Geronimo traveling an average
    19.17 knots.

    About world sailing speed records The World Sailing Speed Record Council certifies sailing speed
    records. The council was established in 1972 by the International Yacht Racing Union (now renamed
    the International Sailing Federation) to provide impartial results for high speed sailing craft on water.
    WSSRC certified l'Hydroptère DCNS' previous records and would be used to certify the Transpac
    record. More info at

    L'Hydroptère DCNS Core Sailing Team
    Alain Thébault (50, Quiberon, France) Founder and skipper
    Luc Alphand (47, Hautes-Alpes, France) Elite skier, motorsports driver, sports commentator
    Yves Parlier (51, Arcachon, France) Ocean racer and pioneer
    Jean le Cam (53, Quimper, France) Ocean racer
    Jacques Vincent (France) Co-skipper and ocean racer
    For more information:
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  5. #5
    Wide bottoms are the devils workshop.
    ~Every cloud has a silver lining (except for the mushroom shaped ones, which have a lining of Iridium & Strontium 90)~

  6. #6
    Mammy Nun Thing-Fish's Avatar
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    Somewhere under Virginia
    Well, what happened?

  7. #7
    despondent correspondent Photoboy's Avatar
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    Oracle sailed their 1st day on the 72 and broke a dagger board and was done before noon.

    l'hydropture set the SF Bay 1 mile Course record at 43 knots

    6 kiters were the 1st finishers at the B2B

    pics uploading
    " I just found out my nest egg has salmonella" Photo Gallery

  8. #8
    Throw in an El Toro regatta and it's just an average day on the bay!
    Pointing like a traffic cop, footin like a track star.

  9. #9
    despondent correspondent Photoboy's Avatar
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    5 Finishers at Windjammers

    1) Akela: 18:22:28

    2) Kokopelli 19:06:29

    3) Roller Coaster 19: 53:57

    4) Deception 20: 11: 23

    5) Heart Beat 20: ???

    two boats have retired thus far, moonlight and absolute 37
    " I just found out my nest egg has salmonella" Photo Gallery

  10. #10
    despondent correspondent Photoboy's Avatar
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    " I just found out my nest egg has salmonella" Photo Gallery

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