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Old 01-24-2011, 02:35 PM   #21
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RE: What the heck is this????

Quote:

*
Arctic Traveller wrote:Actually, no.* Having a couple 90 footers I run and maintain on a regular basis, it's clear to me that even if I could afford one, the amount of maintenance and other costs would take all the fun out of it.*
I read somewhere that Bill Garden said that the ideal boat size for cruising the west coast is 32' so who can argue?
I reached that conclusion about 6 years ago.


*
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Old 01-24-2011, 04:30 PM   #22
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RE: What the heck is this????

Walt:

Have you been perfecting your avatar? It looking great.
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Old 01-24-2011, 05:03 PM   #23
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RE: What the heck is this????

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Dswizzler wrote:

John,

What typical and size boat was this installed on ? Sure we'll all be interested* on the sea trail or you could invite us all along...
I think they size them to your boat. *I googled the manufacturer and came up with a few different articles. *Pretty interesting although I am still a bit skeptical. *The author of the PMY article almost made it sound magical. *If that is the case then it may be worth it...especially since it will stabilize your boat at anchor. *It only works on the roll axis. *I looked at the install and was wondering...."how"?....since it is gimballed on the pitch axis. *Then I remembered the principles of gyroscopic precession which applies the force 90 degrees from where it is applied. *So the "animal" in the picture rocks back and forth apparently on the pitch axis but the force is felt on the roll axis......I determined this all by my lonesome so it may be way off....
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Old 01-24-2011, 08:22 PM   #24
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RE: What the heck is this????

The ones from Seakeaper only come in two models. One for boats up to I think the 60' range, and then another really big one that they use multiples of on megayachts. I seatrialed their 41' Viking sportfish at the last Ft. Lauderdale boat show, as a 72' Hatteras motoryacht I captain/manage is thinking of installing them. I don't know it it is magical, but it is very cool and does everything is says it does. Offshore in 3-4' beam seas, the boat didnt roll. It still went up and down on the waves, but not side to side with things slamming everywhere. WHen I stepped on the boat at the dock prior to the sea trial, with the engines and generator shut down. I did not even know it was running. When I asked them to fire it up, they said, "it already is" that quiet...They say that for a boat like my customers that already has the Naid stabilizers, it is the best of boat worlds. The SeaKeapers compliment the Naids (Fin stabilizers) when underway, and at anchor or dock the Gyro's take over. I talked to a guy on the west coast who installed two of the smaller units on a 74' Hatteras Motoryacht and loved it. My customer is thinking the same...only $200k for the pair, installed!

Here is a link to a local boatyard that we work with that put one in a 43' Silverton...
http://www.bbyachts.com/uploads/file...er_Install.pdf
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Old 01-25-2011, 05:03 AM   #25
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What the heck is this????

I guess if you can afford to have a $70,000 spinning top in a vacuum in your boat to smooth the roll a bit, then they would be great. If you can afford a 50 to 70 foot modern vessel, I guess it's no big deal. I can see how it would work, and I like the idea better than vulnerable wings sticking out to get damaged and rip a hole in the hull in a grounding. However, as one wondering how to finance another $5000 bill for an engine job, just to get running again, after already spending about $12,000 this summer, a gyro-stabiliser is low on my shopping list. What was that someone said about the ideal sized coastal boat? Mine's only 34 ft, so I'd shudder to think what it would cost to run a 60 footer.
PS.* Oh, yeah, as a result, the foreward raked screens will have to wait......forever......

-- Edited by Peter B on Tuesday 25th of January 2011 06:04:44 AM
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Old 01-25-2011, 06:43 AM   #26
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RE: What the heck is this????

We were gonna give it a test run yesterday but one of his starters and one of his engines was frozen up so we didn't get to experience it.

"Engine frozen and locked starter" , sounds like a std no maint boat!

Just the thing he needs is a $70K toy!
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Old 01-25-2011, 08:06 AM   #27
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RE: What the heck is this????

Quote:
JMYSS wrote:

The ones from Seakeaper only come in two models. One for boats up to I think the 60' range, and then another really big one that they use multiples of on megayachts. I seatrialed their 41' Viking sportfish at the last Ft. Lauderdale boat show, as a 72' Hatteras motoryacht I captain/manage is thinking of installing them. I don't know it it is magical, but it is very cool and does everything is says it does. Offshore in 3-4' beam seas, the boat didnt roll. It still went up and down on the waves, but not side to side with things slamming everywhere. WHen I stepped on the boat at the dock prior to the sea trial, with the engines and generator shut down. I did not even know it was running. When I asked them to fire it up, they said, "it already is" that quiet...They say that for a boat like my customers that already has the Naid stabilizers, it is the best of boat worlds. The SeaKeapers compliment the Naids (Fin stabilizers) when underway, and at anchor or dock the Gyro's take over. I talked to a guy on the west coast who installed two of the smaller units on a 74' Hatteras Motoryacht and loved it. My customer is thinking the same...only $200k for the pair, installed!

Here is a link to a local boatyard that we work with that put one in a 43' Silverton...
http://www.bbyachts.com/uploads/file...er_Install.pdf
By the specs it seems to use quite a bit of wattage (3k)*to run.* So*the genset has to run all of the time?** I'm guessing on the bigger boats they do anyway.
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Old 01-25-2011, 08:33 AM   #28
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RE: What the heck is this????

Quote:
FF wrote:

We were gonna give it a test run yesterday but one of his starters and one of his engines was frozen up so we didn't get to experience it.

"Engine frozen and locked starter" , sounds like a std no maint boat!

Just the thing he needs is a $70K toy!
FF, that should have read "...but one of his starters ON one of his engines was frozen up.."... ***He had moved his boat from the yard to the slip 2 days before and everything worked fine. *It is just one of those things. *

And your judgement could not be further from the truth. *He is just finishing up about a 1 year refit with a completely OPEN checkbook.....so open that he could likely buy a similar boat *BRAND NEW for what he has into this refit. *He is basically rebuilding the whole boat. *I would say this boat is "hyper"maintained.

*
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Old 01-25-2011, 08:37 AM   #29
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RE: What the heck is this????

Quote:
JD wrote:

*
JMYSS wrote:

The ones from Seakeaper only come in two models. One for boats up to I think the 60' range, and then another really big one that they use multiples of on megayachts. I seatrialed their 41' Viking sportfish at the last Ft. Lauderdale boat show, as a 72' Hatteras motoryacht I captain/manage is thinking of installing them. I don't know it it is magical, but it is very cool and does everything is says it does. Offshore in 3-4' beam seas, the boat didnt roll. It still went up and down on the waves, but not side to side with things slamming everywhere. WHen I stepped on the boat at the dock prior to the sea trial, with the engines and generator shut down. I did not even know it was running. When I asked them to fire it up, they said, "it already is" that quiet...They say that for a boat like my customers that already has the Naid stabilizers, it is the best of boat worlds. The SeaKeapers compliment the Naids (Fin stabilizers) when underway, and at anchor or dock the Gyro's take over. I talked to a guy on the west coast who installed two of the smaller units on a 74' Hatteras Motoryacht and loved it. My customer is thinking the same...only $200k for the pair, installed!

Here is a link to a local boatyard that we work with that put one in a 43' Silverton...
http://www.bbyachts.com/uploads/file...er_Install.pdf
By the specs it seems to use quite a bit of wattage (3k)*to run.* So*the genset has to run all of the time?** I'm guessing on the bigger boats they do anyway.

*

I did not read that article. *But the article I read said that it needs 3kw to start and 1.5 to "maintain". *It takes 30 minutes to get up to a workable speed and another xx minutes to get it up to full operating speed. *But, yes, the generator has to be running during operation.

*
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Old 01-25-2011, 11:24 AM   #30
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RE: What the heck is this????

Quote:
Baker wrote:

*
JD wrote:

*
JMYSS wrote:

The ones from Seakeaper only come in two models. One for boats up to I think the 60' range, and then another really big one that they use multiples of on megayachts. I seatrialed their 41' Viking sportfish at the last Ft. Lauderdale boat show, as a 72' Hatteras motoryacht I captain/manage is thinking of installing them. I don't know it it is magical, but it is very cool and does everything is says it does. Offshore in 3-4' beam seas, the boat didnt roll. It still went up and down on the waves, but not side to side with things slamming everywhere. WHen I stepped on the boat at the dock prior to the sea trial, with the engines and generator shut down. I did not even know it was running. When I asked them to fire it up, they said, "it already is" that quiet...They say that for a boat like my customers that already has the Naid stabilizers, it is the best of boat worlds. The SeaKeapers compliment the Naids (Fin stabilizers) when underway, and at anchor or dock the Gyro's take over. I talked to a guy on the west coast who installed two of the smaller units on a 74' Hatteras Motoryacht and loved it. My customer is thinking the same...only $200k for the pair, installed!

Here is a link to a local boatyard that we work with that put one in a 43' Silverton...
http://www.bbyachts.com/uploads/file...er_Install.pdf
By the specs it seems to use quite a bit of wattage (3k)*to run.* So*the genset has to run all of the time?** I'm guessing on the bigger boats they do anyway.

*

I did not read that article. *But the article I read said that it needs 3kw to start and 1.5 to "maintain". *It takes 30 minutes to get up to a workable speed and another xx minutes to get it up to full operating speed. *But, yes, the generator has to be running during operation.

*

*

I believe that the gyro can also be operated using shorepower while docked. Otherwise JYMSS' experience of the quiet gyro and no generator running wouldn't make sense!

*
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Old 01-25-2011, 06:16 PM   #31
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RE: What the heck is this????

It can (and was) be running at the dock on shore power. They did not have it run fully up but at what they called a "maintenance" setting of about 40% max power. Apparently because it runs in a vacuum, and takes a while to spin up once it gets up to a "maintenance speed" the draw will drop down. Then in the short amount of time it takes to switch the breaker from shore power to generator or vice versa, it does not slow down enough to really affect it. The 72' Hatt that is thinking of installing it on is running two 20KW generators. Even the full load of 3KW is really nothing when compared to that ships systems....
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