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                   GYRO LETS SHARK VIEWERS ENJOY                                EVERY EXCITING MINUTE

Yet another purpose for Seakeeper Gyros

By Capt. Ken Kreisler

With its breakthrough technology, Seakeeper Gyros has enabled many boaters to have a ‘even keel’ aboard their vessels. Here at the Boat & Yacht Report, we have been keeping tabs on this company’s efforts to make the boating experience just a bit better for those whose constitutions do not go well with the often rocking motion while at sea or underway. And now, for something a bit different.

Guests on Australia’s Calypso Star Charters cage diving expeditions can now focus their attention on encountering great white sharks, rather than on struggling to keep their footing. A Seakeeper M26000 gyro stabilizer refit on the 65′ Calypso Star II has improved guest safety and comfort onboard. While the vessel is underway or anchored, and during critical shark cage operation, the gyro creates a stable platform. This makes for happier customers and enables more operating days for Calypso Star Charters, adding to the business’ profitability.

skp21632-x3hSouth Australia’s Calypso Star Charters offers spectacular close-up views of great white sharks on its exclusive shark cage diving day tours out of Port Lincoln. A three-hour cruise leads to crystal clear waters near the Neptune Islands, where customers enjoy thrilling observation prospects underwater in a six-person cage and on the boat’s huge upper deck.

The Seakeeper refit on Calypso Star II, a custom Conquest fiberglass semi-displacement hull, was done with Seakeeper’s Australia/New Zealand dealer, Twin Disc (Pacific) Pty Ltd. It marks the largest Seakeeper installation in an Australian commercial vessel, and the first among shark cage diving vessels.

Seakeeper’s range of gyro stabilizers reduce resonant vessel roll without the use of drag-producing, damage-prone, through-hull appendages. The completely internal system uses proprietary technology to spin a flywheel within a vacuum environment for maximum righting torque. These actively controlled gyros reduce resonant roll whether a vessel is underway or at zero speed. Their compact size, light weight, small footprint, low power draw and quiet operation are equally suited for refits or new builds. Seakeeper’s worldwide engineering, installation and service network supports commercial vessel projects of virtually any size.

“A gyro is a huge asset aboard tourism-based vessels,” said Sean Hatherley, Seakeeper’s international commercial sales director. “Customers want to be safe and have fun, and not be seasick.” He anticipates the dramatic success of this recent refit to spark sales from operations offering scuba diving, snorkeling, fishing, dolphin-watching or sightseeing tours.

The Seakeeper M26000 gyro, one of many the company produces for the marine market.

The Seakeeper M26000 gyro, one of many the company produces for the marine market.

In sea trials, the Seakeeper gyro achieved a roll reduction rate of over 50% while Calypso Star IIwas underway, and an even more impressive 87% at zero speed at the diving location. “With the gyro, we not only have a more comfortable journey to the islands, but also an exceptionally stable platform for shark diving. It gives guests a second-to-none experience,” said Andrew Wright, Calypso Star Charters general manager. With the company over 11 years, Wright has seen many clients for whom a once-in-a-lifetime opportunity was spoiled by motion sickness.

“The Seakeeper gyro has made a remarkable difference, and our customer feedback has been highly enthusiastic,” said Wright. “Minimal vessel roll makes the day much more pleasurable for everyone. I wouldn’t build a new boat without a gyro.”

Wright was also impressed by the fact that the gyro eliminated down time, helping to maximize business potential. “Within the first three weeks after the installation, we experienced two days of poor weather. In the past, we might have been forced to cancel. But the Seakeeper gyro makes even the rough days workable,” he said.

“Over time this will make a big difference to our bottom line, especially considering that the gyro requires practically no operating costs. Water stays in the sink, drinks don’t fall over, the autopilot drives straighter and the vessel appears to yaw less on anchor. Most important, our guests love it, and it has no impact on the sharks,” Wright said.

Contact Seakeeper at www.seakeeper.com and Calypso Star Charters at http://www.sharkcagediving.com.au

 
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Posted by on February 5, 2014 in Equipment

 

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Equipment

KEEPING THINGS ON AN EVEN KEEL

Once found only aboard big ships and megayachts, gyro stabilizers are now being fitted on boats under 40’.

By Ken Kreisler

Big Wave

While we hope you’re never in this kind of sea, even the slightest hint of sea sickness can make the mildest conditions seem as if the worst were happening. (Photo courtesy of NOAA.)

Sea sickness. To the French, it’s known as le mal de mer; to the Spanish, la enfermedad del mar; even bahari ugonjwa, as uttered by our nautical brethren in Swahili, are some of the most dreaded words that mariners understand regardless of the language. It can bring most sufferers to their knees in humbling supplication to both the captain on the bridge and the heavens above to please, please, get them back to dry and not-moving and solid terra firma post-haste, if not sooner with the absolute and irrevocable promise of never, ever doing this again.

Besides possibly getting a good whiff of early morning diesel or gasoline exhaust combined with the previous night’s imbibing of copious and varying amounts of dissimilar adult beverages and just having to go for that last serving of lasagna, the often multi-directional pitch, roll, and yaw of a vessel underway, even in relatively calm conditions, can bring on the debilitating symptoms and resultant end product of the dreaded malady.

sea-band-us-adultProductsWhile the physiological causes of sea sickness are complex, involving the sensitive organs of the inner ear and our brains which can be dealt with somewhat by using an assortment of pills, remedies, and homeopathic and placebo-based therapies, getting your boat to stop, or at least significantly diminish, it’s up and down and side to side movement, which often occurs at the same time, is the key to a sure-fire cure.

File:Gyroscope_operation

A gyroscope in operation with freedom in all three axes. The rotor will maintain its spin axis direction regardless of the orientation of the outer frame.

Enter the idea of the gyroscope. Breaking it down to its most simplistic explanation, thus avoiding having to try to clarify what anyone except those capable of understanding such advanced concepts of physics as inertial moments, precession, and angular momentum, a gyroscope, once set into motion will stabilize any force that is trying to prevent it from remaining upright.

Take that one step further to a specialized device designed specifically for applications aboard a boat that when installed somewhere below decks inside your vessel, will result in a stabilization of motion without the need for drag-inducing, damage-prone external fins. As long as the gyro is kept spinning, the yawing and pitching; the up and down and back and forth and…well, you get the idea, will be significantly diminished.

While gyro stabilization has been around for quite a while, due to the large power consumption necessary to run them, and the weight and size of the units, they were limited to use aboard only large ships. But by applying the latest in technology, especially being able to spin the flywheel at high speeds in a near vacuum—higher spin speeds require a smaller flywheel which results in a more compact and energy-efficient piece of equipment—thus all but eliminating bearing and air friction, as well as supplying protection from the marine environment, the system is now available to a wider range of vessels.

“We are leveling the horizon for a larger range of boats now, and will continue to design and innovate. Our MX Series is an evolution in advance of the gyro revolution,” so says John Kermet, VP of sales and marketing for Seakeeper, the Maryland-based company, founded in 2002, that is in the forefront of the technology.

The SeeVee 430 easily accommodates the Seakeeper MX Series.

The SeeVee easily accommodates the Seakeeper MX Series.

The MX Series Kermet refers to is designed for boats from 11m-13m/36’-42’ and has already been successfully installed aboard a 39’ Intrepid, a tender for the Abeking & Rasmussen-built Silver Cloud, a 40.8m/134’ megayacht. Seakeeper teamed up with Ocean5 Naval Architects and Intrepid to bring this design to practical use. The unit installed is the Seakeeper M8000. Among the other notable builders utilizing the other Seakeeper Gyro Stabilization Systems are Azimut, Fairline, Hatteras, Viking, Sabre, Tiara, Lazzara, and a long list of others.

hatteras-seakeeperSeakeeper units are of course readily available to new builds but are also, and in most cases, capable of being retro-fitted to existing boats. Take, for example, the job done on Finders Keepers, a 59’ 1979 Hatteras while the boat was being remodeled. The problem was finding a suitable space for the equipment. While the owners first balked at the thought—the typical unweighted 70-75dB(A) sound, as ascertained in the Seakeeper lab as well as with no wave load on its 43-foot Viking test boat—they found the sound barely noticeable, especially above that of the air conditioning. “Installing gyros under the master stateroom is unusual, but proves our flexible mounting options,” said Kermet. “To bring stability and more safety to a 33-year old classic yacht is rewarding.”

Indeed, the unit or units do not have to be installed on the vessel’s centerline to be effective. However, the space does need to have the proper structure and mounting capabilities to successfully transmit the gyros righting technique to the hull. Other considerations include having to run the unit off a genset while running or at anchor or, if necessary, on shore power while in the dock.

A Seakeeper M8000 gyro is just one of many models available for a wide range of applications.

A Seakeeper M8000 gyro is just one of many models available for a wide range of applications.

If you are thinking of installing this kind of equipment aboard your new build or adding it to your present vessel, Seakeeper has all the information and infrastructure at your disposal to assist with pricing, model need, positioning, and after care. And while you can watch the dramatic videos on its site, if you really want to experience what this kind of equipment can actually do, schedule an on-board sea trial. Keeping things on an even keel aboard your boat will definitely take on a new meaning. www.seakeeper.com

 
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Posted by on February 22, 2013 in Equipment

 

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Dock Buzz

Dock Buzz


GYROS GIVE HATTERAS OWNERS “A MAGIC CARPET RIDE”

When Lt. Commander Scott Armstrong and his wife, Tiana, bought a 1979 Hatteras and gave her an extensive makeover, they had a specific vision for Finders Keepers.  “We didn’t want to just scamper from marina to marina,” said Tiana.  “We wanted to explore remote locations.”  Seakeeper helped them achieve that mission with the installation of two M8000 gyros.

Moored in MWR Harbor in Guantanamo Bay, Cuba, Finders Keepers’ recent refit transformed the 59′ Hatteras into a Kennedy-esque, retro-style yacht with 21st-century amenities.  When it came to stabilizing options, Scott said, “none satisfied our need for stability while underway and at anchor except for Seakeeper gyros.  We looked at the engineering and found Seakeeper would allow the Hatteras to do what she was always intended to do — go to sea.”  The M8000 gyros were installed by Gulf Coast Hatteras, Seakeeper’s dealer/service and installation partner in Alabama.

Before the gyros were fitted, “significant swells necessitated maintaining precise seamanship or our salon looked like a scene from The Exorcist with everything moving around,” said Tiana.  “Remaining on the flybridge was out of the question.

“After the Seakeepers were installed, a ‘magic carpet ride’ is a far more apt description.  Several of our guests are nervous at sea, but now everyone loves the experience, because the boat’s motion is far more predictable and gentle.  Seasickness is a thing of the past,” Tiana continued.  “It allowed my 70-year-old mother-in-law to move about safely in conditions that would have prevented her from doing so before.”

It was determined that the best location for the gyros was immediately beneath the master stateroom bed.  “The Armstrong’s were apprehensive about the noise,” said Gulf Coast’s marine electronics supervisor, Porter Lloyd.  But there was no need to worry.

“We are completely unaware of their presence,” said Tiana.  “The white noise of the generator and air handlers is several times louder.  And, there is no vibration unless you actually touch them.  It’s hard to believe there are steel flywheels whizzing along at 8,000 rpm a mattress away!  People’s eyes bug out when I show them off.”

The Seakeeper gyros also create fuel savings for the Armstrong’s.  “I can plan voyages without constantly maneuvering relative to the sea state, wasting time and diesel trying to find a smooth ride,” said Tiana.  “The vessel’s control has been improved and she tracks more precisely.  We also noticed that heave is a bit more controlled, due to the gyros’ position relative to the center of gravity and waterline.”

Seakeeper M8000 Gyro.

Gulf Coast Hatteras also oversaw Finders Keepers‘ comprehensive refit, including hull sandblasting, repainting and woodwork.  “We also built a new dining area, modernized the electricity, installed system monitors, and updated the fuel system and watermakers,” said Lloyd.

“Installing gyros under the master stateroom is unusual, but proves our flexible mounting options,” said John Kermet, Seakeeper VP of sales and marketing.  “To bring stability and more safety to a 33-year old classic yacht is rewarding.”  With no external appendages, Seakeeper gyros deliver unmatched stability whether a boat is at anchor, low speed, or underway.

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590.  sales@seakeeper.com,www.seakeeper.com

 
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Posted by on August 23, 2012 in Dock Buzz

 

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Dock News

Dock News


SEAKEEPER DEBUTS NEW GYRO ON UPCOMING
JIM SMITH SPORTFISH YACHT

Delivering its largest gyro to date, Seakeeper’s M26000 will be installed on Jim Smith Boats’ hull #29.  This 105′ custom, tournament sportfish yacht will debut in 2013.

As a builder of high-performance yachts, many reaching speeds of 40 knots or more, directional stability was very important to Jim Smith Boats.  “Directional stability is very important for high speeds,” said John Vance, Jim Smith Boats president.  “Seakeeper’s internal gyro just makes sense.  This way there are no parts in the water to reduce the boat’s performance.  Seakeeper’s gyro is a unique product and a quality piece of hardware.”

Jim Smith boats have won tournaments throughout the Caribbean and East Coast under all weather conditions. Among its many outstanding features, hull #29 features seven staterooms and seven heads.

“Seakeeper is excited to have the opportunity to work with a world-class custom builder like Jim Smith Boats.  Our gyros are the perfect addition to a vessel of this type,” said John Kermet, Seakeeper’s VP of sales, marketing and service.  “The most discerning sport fish owners can now realize the best in absolute performance, while minimizing frustrating zero and low-speed boat roll.”

Seakeeper is the world leader in active gyro stabilizer technology for the leisure yacht and commercial marine industries.  Seakeeper’s gyros virtually eliminate zero and low speed boat roll, working at anchor and underway.  They don’t require through-hull cutting and eliminate the need for drag producing appendages.  Small and lightweight, they offer flexible installation options while consuming minimal power.

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590; Fax: 410-326-1199. sales@seakeeper.com, www.seakeeper.com

 
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Posted by on August 8, 2012 in Uncategorized

 

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Products

SEAVEE NOW OFFERS SEAKEEPER MX SERIES GYRO

            To complement the high quality and performance of its top-of-the line 430 Express, SeaVee Boats now offers the Seakeeper MX series stabilization gyro as an option.  The MX series continues to find success with builders of smaller craft after its launch earlier this year.

The SeeVee 430 easily accommodates the Seakeeper MX Series.

            Conversations with Seakeeper’s East Coast independent rep group ComMar Sales, and a sea trial on an Intrepid 390, piqued SeaVee’s interest.  “It spoke for itself,” said John Caballero, SeaVee Boats marketing director.  “We’re always looking to raise the bar, to deliver the performance our customers are expecting.  Seakeeper adds a lot to that equation, by enhancing comfort onboard and creating a more enjoyable ride.”

            The SeaVee 430 Express is an extensively customizable boat, designed for fishing and luxury cruising.  Power choices include triple or quad outboards, twin inboard diesels, or pod systems.  Its three tower options, spacious cockpit, comfortable bridge deck and well-appointed cabin create a high-end, live-aboard fishing boat with the amenities of home.  More information is available at www.seaveeboats.com

            Seakeeper’s new MX series gyro is based on the same innovative technology as its M8000 and M21000 gyros, but tuned to an individual’s application for boats in the 35′-45′ range, depending on displacement.  It reduces resonant boat roll by more than 80% when a boat is underway, at idle, or at anchor.

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590 sales@seakeeper.com; www.seakeeper.com

 
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Posted by on May 5, 2012 in Uncategorized

 

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Products

SMALL CRAFT ADVISORY: SEAKEEPER NOW STABILIZES SMALLER BOATS

Seakeeper is opening up more comfortable worlds to boats in the 35′-42′ range with its new MX series gyro stabilizer.  Based on the same groundbreaking technology as its M8000 and M21000 gyros, the MX series will be tuned to an individual’s application, in an affordable package.

Quality Seakeeper features are standard, such as quiet operation, low power draw, and active electronic controls.  The MX series still spins a flywheel inside a vacuum-sealed sphere to create powerful righting force.

Seakeeper will optimize its control algorithms to the faster roll periods on smaller craft, working closely with clients to deliver the greatest possible angular momentum.  The MX series can deliver up to 80% roll reduction whether a boat is underway, idling or at anchor.  It is initially designed for boats up to 15 tons displacement.

“People with smaller boats have been begging us for gyro technology,” said John Kermet, Seakeeper VP of sales and marketing.  “The MX series is an extension of Seakeeper’s proven gyro platform, an affordable solution.  Fishermen can venture farther offshore.  Small cruisers have more overnight anchoring options.  Scuba divers can re-board their craft in safety.  Yacht owners can also stabilize their tenders,” Kermet said.

“We are leveling the horizon for a much larger range of boats now, and will continue to design and innovate.  Our MX series is an evolution, in advance of the gyro revolution.”

The Seakeeper MX Series is a perfect fit aboard this 39' Intrepid.

The catalyst for this evolution was a recent Seakeeper gyro installation on a 39′ Intrepid.  As tender to the 134′ SWATH Abeking & Rasmussen M/Y Silver Cloud, custom-designed for comfort on the roughest seas, the owners sought the same stability for their small boat.

Intrepid is known for its fast and fuel efficient custom sport yachts.  External stabilizing appendages would produce drag, affecting the Intrepid 390’s 50-knot top speed, and its small genset couldn’t be taxed.  So Intrepid, Seakeeper and Ocean5 Naval Architects created the gyro-enhanced Intrepid 390, the first gyro on a boat this small.

“Intrepid builds boats tailor-made to the customer’s needs and desires,” said Joe Brenna, Intrepid VP of customer service.  “The Seakeeper works like a dream, the performance just amazed me.  Our 390 is still fast and handles extremely well, but it’s steady as a rock.”

“Seakeeper’s rugged and durable design withstands the rigors of small, high-speed boat operation.  It’s the only viable stabilization system for such craft,” said Robert Kaidy, Ocean5 CEO.  “Sea trials are a validation of engineering, and this exceeded our expectations.  Intrepid makes a solid boat.  Even at high speed, the gyro had no impact on its dynamic characteristics, other than the very positive effect of reducing roll.

“It doesn’t take much on smaller boats to make it difficult to walk around.  When you’re uncomfortable, it really detracts from the boating experience,” said Kaidy.  “But the gyro changes that, returning the comfort, utility and functionality of the boat.  It’s really fundamental.  I predict we’ll see more new boats of this size designed for a Seakeeper gyro—soon.”

A comparison video of the gyro-enhanced Intrepid 390 and a non-stabilized model is at http://vimeo.com/35754451.  To make an appointment, contact 301-717-6280 or bstevens@seakeeper.com for demo information.

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590; sales@seakeeper.com; www.seakeeper.com

 
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Posted by on February 13, 2012 in Uncategorized

 

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Yacht Spotting and New Launches

Yacht Spotting and New Launches

 

SEAKEEPER GYROS STANDARD ON NEW HEESEN 65M DESIGN

When a yacht builder premieres an extraordinary engineering advance, other components must be equally revolutionary.  Twenty years in development, Heesen Yachts’ Fast Displacement Hull Form (FDHF) debuts on its new 65m yacht, the first of which will launch in 2013.  To provide underway and at anchor stabilization for this unique design, Heesen has chosen Seakeeper M21000 gyros as standard equipment.

Heesen's Fast Displacement 65m Yacht

Nearly a year into its construction at the Heesen shipyard, this is the world’s first fast displacement yacht.  The recently-delivered Seakeeper gyros, 5 units for this 65m craft, will be installed with the assistance of Seakeeper’s Dutch distributor, Kemper en Van Twist Diesel.

Heesen’s FDHF incorporates features that affect hydrodynamic resistance over the entire speed range, such as the limited immersed transom, bulbous bow, trim control and spray rails for a 30% increase in hull efficiency.  When paired with the yacht’s MTU M93L engines, it will have a 4,200 nm range with 20 knot cruising speeds and a top speed of 27 knots.

Seakeeper M21000 Gyro

With such a unique hull design, it’s not possible to use external appendages, such as stabilizing fins, that could affect performance.  Housed completely inside the lightweight, efficient Heesen hull, the Seakeeper gyros will provide power-saving stabilization while the yacht is underway, at zero speed or at anchor.  The powerful righting torque of each M21000 gyro results from a steel flywheel spinning at high speeds in a vacuum, within an aluminum housing.  Drawing a miserly 3 kW at full speed, each gyro delivers 21,000 Newton meter seconds of angular momentum to achieve up to 80% roll reduction.  This ensures owners and guests are comfortable, and safe, onboard in varying sea conditions.

Luxurious amenities on this remarkable Heesen design include a duplex beach club, glass-bottom swimming pool, 10 sq. m side balcony, a vast sundeck, and accommodations for up to 12 guests in custom-built quarters.  Seakeepers’ steadying force will be particularly appreciated on the touch-and-go helicopter deck and in the multiple tender garages. For more information on the Heesen FDHF yacht, or any of the other available designs, visit the company Website at www.heesen.nl

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590; Fax: 410-326-1199.  sales@seakeeper.com, www.seakeeper.com

 
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Posted by on January 24, 2012 in Uncategorized

 

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Products

SEAKEEPER GYRO ENHANCES TIME ABOARD MIKELSON 43

The Mikelson 43 SF shows off her cockpit and salon.

The Mikelson 43 Sportfisher gracefully combines the fishing elements of a large flybridge and tournament station with a comfortable, spacious interior.  After fitting his boat with a Seakeeper gyro, the savvy owner of SAM I AM now better enjoys time spent aboard in comfort.

“There’s a definite trend toward putting gyros on smaller craft,” said Mike Elias of Mike’s Boatworks, the Seakeeper servicing dealer who installed the gyro.  “There’s really no way anyone would add stabilizing fins to boats this size, as there isn’t enough space and they’re not economically effective.  Seakeeper is opening up a market for people who want a smooth ride and stability, so they can spend more stress-free time on the water.”

A Seakeeper gyro (top) fits right in aboard the Mikelson 43.

With the help of The BoatYard in Marina del Rey, California, the gyro was mounted in a storage area forward of the engine compartment under the main salon.  Only a 30″ access hatch was needed.  “Although the gyro is underneath living space, it’s pretty much silent,” said Elias.  The owner agrees, saying, “I think I can hear the generator more than the gyro.”

“We didn’t have to tear the boat apart, and The BoatYard team was on top of it all.  I’d work with them again in a heartbeat,” said Elias.  “Turnaround time was phenomenal, just 4 weeks from the order date to sea trial.  It’s so simple, almost any boat owner could easily retrofit this gyro on a boat over 35 feet.”

On the day of the sea trial, “Whitecaps were crashing against the Marina del Rey breakwater and we had 6-8′ swells,” said Elias.  “The boat was getting tossed around, and when we turned on the gyro, she simply leveled out.”  The owner commented, “There was a small craft advisory, and the gyro did have a significant impact in reducing the boat’s rocking.”

Soon after commissioning, SAM I AM‘s owner had further proof of Seakeeper’s performance.  He hosted a cocktail party on the flybridge for 25 guests near Catalina Island.  “As usual the water was a little rough,” he said.  “The gyro kept us stable, especially compared to other boats that were rocking back and forth, and made launching the dinghy a lot easier.”

“What really impressed me was that after the party, we switched off the gyro, and it really made a difference.  Dishes up on the flybridge table that had been sitting there, stable, for 3 hours literally went flying moments after we shut it off.  That told me, ‘yes, this thing works.'”

He continued, “In previous years, even though conditions were pretty similar, a quarter of the guests fell ill, some sick enough to want to leave immediately.  This year the party was much more enjoyable.”

Based in San Diego, Mikelson builds custom sportfishing and pilothouse yachts from 43′ to 75′.  The 43′ and 50′ sportfishers are available with the Cummins Zeus Pod Drive engine package.

With no external appendages, Seakeeper Gyro Stabilization Systems produce a powerful righting force that virtually eliminates boat rock and roll.  The actively controlled units optimize torque, delivering unmatched stability at anchor, zero and low speeds, as well as while underway.

Contact Seakeeper, 44425 Pecan Ct., Ste. 151, California, MD  20689.  410-326-1590; Fax: 410-326-1199.  sales@seakeeper.com, www.seakeeper.com

 
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Posted by on January 12, 2012 in Uncategorized

 

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Dock News

Dock News


SEAKEEPER SEES LONG FUTURE WITH HEESEN YACHTS

Until recently, Heesen Yachts had not considered gyro stabilization.  But after a memorable sea trial in July 2011, the management team was so impressed they expect to be working with Seakeeper well into the future.  In fact, the Heesen hull YN 16465, a 65m/213-foot yacht due for completion late 2012, will also feature Seakeeper’s stabilization system.

“Heesen’s 37m/121-foot class was designed before stabilization at anchor was considered standard for a luxury yacht,” said Peter van der Zanden, Heesen general manager, design & development.  Instead of obtrusive fins, an internal stabilization system was demanded and two M21000 gyros were installed on the new build.

Heesen's 37m/121-foot Aurelia

Aurelia is a semi-displacement yacht and therefore fins are a disturbing factor,” said Rob de Wijs, sales manager with Seakeeper’s Holland distributor, Kemper en Van Twist Diesel B.V (KVT).  “Heesen had no experience with gyros, so they were uncertain if the predicted roll reduction could be achieved.  After the sea trial, they were convinced.”

Seakeeper's M21000 Gyro

The two Seakeeper M21000 Gyros installed on Aurelia were tested at zero speed and while underway in extreme, rough seas three miles outside Slijkgat Inlet between Holland and France.  Wind was blowing northwest at 20 knots with 1.5m/5-foot sea conditions.  At zero speed, the gyros reduced resonant roll by greater than 55%.

The Seakeeper gyros were also tested during underway operation.  Samples were recorded at speeds of 6, 13, 18 and 28 knots.  Through this speed range, the system reduced roll by an average of 50%.

“We were impressed with how well the boat handled with the gyros,” said Aurelia Capt. Brenden Scott.  “They really helped with roll.  As a charter yacht we were looking for comfort at anchor, zero speed and while underway.”

“We are sure that Heesen will have no doubts about Seakeeper anymore.  The product has proven itself,” said de Wijs.

High seas during the trial proved that Seakeeper gyros worked so well underway that even seasoned crew marvelled at how well they steadied Aurelia.  The point was further made during a video shoot on choppy waters off Cannes.

Speaking on behalf of Aurelia‘s owner, Heesen PR and press office manager Sara Gioanola said, “Cruising on Aurelia with the Seakeepers is a very special experience.  We worked on a video shoot off Cannes in September.  The area is quite popular with yachts constantly running up and down.  Many crew members onboard that day were seasick and constantly asked for the gyros to be engaged, as they were turned off for brief periods during testing.

“While other yachts were rolling, we stayed still.  The videographers felt great and could work in a perfect environment.  The stabilization during the running shots also was pretty astonishing.  We had to make a circle and Aurelia did not lean inside.  She ran straight.  The comfort you experience is unparalleled.  Once you try a yacht equipped with a gyro, you can’t go back to fins.”

M21000 gyros are designed for larger vessels, Seakeeper is working with yachts up to 65m/213-feet.  The gyros’ powerful righting torque device is easily installed with no thru-hull fittings.

The tenth yacht in the leading Dutch builder’s 37m/121-foot class is available for charter in the Mediterranean during the summer and the Caribbean in the winter.

Contact Seakeeper, P.O. Box 809, California, MD  20688.  410-326-1590; Fax: 410-326-1199 sales@seakeeper.com, www.seakeeper.com

www.heesenyachts.nl

 
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Posted by on December 28, 2011 in Uncategorized

 

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