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Molokai Strait 65 model

 
 
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Old 12-10-2007, 11:46 PM   #1
YachtNews
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Molokai Strait 65 model

The trawler yacht is an interesting combination of strength, endurance and a comfortable setting. The race is not for the swift but for those who can endure to the end. This is a popular phrase that is repeated in all genres but holds true for the trawler yacht. In particular, the Molokai Strait 65 foot trawler yacht. The Molokai 65’ is a result of hard work put in to create an oceangoing platform.

The Molokai 65’ was constructed, in fact three of them and after seeing the instant success of this model, it led the builders to construct a larger model. This was the formation and construction of the Molokai 72 footer. However, the 65’ will be focused upon. The story of the 65 foot model started back in 2002 when the first unit was launched.

Extensive tank testing, calculations and research and design were completed to create this vessel. When the time came to construct the vessel, a steel displacement hull with bulbous bow was used. The superstructure was created from aluminum for a lightweight but strong application. This also helped the stability and integrity of the 65’. Great care was taken by the designer, Eric Sponberg to fashion a hull form and bulb that would reduce pitching and rolling.

Of course any vessel that is put to sea will be subject to these motions. Designers can only try to dampen the motions but they won’t be able to eliminate it. The Bilge keel and stabilizer fins were also created to reduce rolling. This is the side to side rocking motion of a vessel. All of the diligent work is in effect to create a smoother ride for those on the inside of the yacht. Now the accommodation aspect will be looked at.

The accommodation plan of the Molokai Strait 65’ was done in two arrangement types. These were the two and three deck versions. The three deck version features the bridge basically one level above the main accommodation area. This gave the bridge a better view around for navigation. It also allowed for the realization of more space in the saloon region. The other version, the two deck type, has the bridge that is significantly lower than in the other arrangement.

On the lower deck is the spacious owner’s stateroom. The owner’s or master stateroom is situated portside of the center line of the vessel. A large bed abounds, in fact it is a queen sized bed and along with this there is plenty of storage and an ensuite head. Forward of the master stateroom region is the guest rooms. There are two of them and they are located on the port and starboard sides of the 65’.These rooms are serviced by a common head which is forward of the two rooms.

From guest rooms to the engine room, the heart of the Molokai 65 is evident. She is powered by a CAT 3406C engine that produces 440HP at a revolution rate of 2100 RPM. Like many trawler yachts, she uses a Hundested controllable pitch propeller.

To produce electrical power, there are two GEN SETS aboard. For daytime running, the Northern Lights 32 KW works full duty. On the other hand, there is a Northern Lights 12KW generator for night use. There is a large range on this small vessel and it is over 3,000NM, 3,500NM at 8 knots. This is complements of the 4,800 gallon fuel capacity and efficient running.

For more on the Molokai Strait 65 foot model please visit the naval architect at:

http://www.sponbergyachtdesign.com/Molokai65.htm

http://www.sponbergyachtdesign.com

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Old 12-11-2007, 01:22 AM   #2
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IMHO the sheer line and freeboard on that hull is "just right" for an expedition yacht. Much, much nicer than a lot of its competitors.

Kelly
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Old 12-13-2007, 10:18 AM   #3
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I've been on this vessel, and she's indeed beautiful. The bilge keels were removed after initial sea trials, as they caused some handling issues. Also, the builder has added a "bustle" for future builds, extending the LOA to 68'.

If anyone is interest, there's an unused (i.e., not quite finished) hull #3 of this type of vessel that might still be available for sale. Drop me a PM here if interested.
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Old 12-15-2007, 06:03 PM   #4
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Thanks for the nice review, and Kelly, thanks for the compliments. We did indeed work hard on that sheer line to get it just right.

The MS 72, which was ultimately built as a 75, is for sale, and you can contact American Global Yacht Group, the mother company for Moloka'i Strait Marine, in Ft. Lauderdale, for complete details.

I have just finished an upgrade to the MS 72, making it a 79'er, so it is called the MS 79. The new changes to the design are:
  • 3' of length is added in the engine room and main saloon for more room in both. This makes it possible to change the twin Cummins 350s from a reveresed V-drive installation to a more conventional face-forward installation.
  • We beefed up the structure below the waterline to add extra weight down low so that we would not have to add as much ballast. This has the added benefit of making the bottom structure super strong.
  • Changed the shape of the bulb for better performance.
  • Made the hull a triple-chine hullform. The reason for doing this is because making a round-bottom hull is becoming a lost art, and all the shipyards tell me it really is much more expensive to make a round bottom hull than a chined hull, never mind the fact that the frames and plate are all NC cut. So, not wanting to lose the benefits of a round bottom, nor wanting to lose any fuel and stores capacity due to shape, a triple-chine hullform is just the ticket. All the plating is developable surfaces, and it really does closely approximate the original round bottom hullform. Therefore we expect to retain the superior rolling and pitching performance of the original concept.

For more information, contact American Global Yacht Group for details on specs and prices.

Thanks again for your comments.

Eric
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