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Old 05-05-2015, 11:28 AM   #101
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Lack of primary stability

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Originally Posted by brian eiland View Post
I sometimes go back to this photo reference,...in a sea that is not that big,....vessel lost its stabilization system
This is where a cat really shines. Photos often don't show the actual size of the sea state, or maybe they do but we experience them differently. I see what appears to be anchor chain dangling from the bow so this boat may be disabled? I have a friend with a 40' version and he has paravanes and fins to control the roll. Catamarans and trimarans are the only hull forms that have lots of primary stability , secondary stability and the ability to cheat the displacement hull speeds limitations in one package.
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Old 05-05-2015, 11:39 AM   #102
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The line or chain on the bow is taut between the point of the bow and the waterline. My guess is that it's some kind of system to lower the angle of pull on the rode when at anchor. There would be a bow eye of some sort down at the water line and some means of connecting the rode to it. Some boaters like to use a system like this.
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Old 05-05-2015, 11:54 AM   #103
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All very true Scary but cats can't very well cheat the infrastructure of marinas when it comes time to look for a mooring slip.

Has the structural difficulties or limitations been discussed in this thread?
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Old 05-05-2015, 12:06 PM   #104
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On occasion I've encountered slips too narrow for the fat (13' beam) Coot for a slip of the boat's length.
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Old 05-05-2015, 12:22 PM   #105
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Powercat trawlers vs traditional Trawlers

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Originally Posted by Scary View Post
This is where a cat really shines. Photos often don't show the actual size of the sea state, or maybe they do but we experience them differently. I see what appears to be anchor chain dangling from the bow so this boat may be disabled? I have a friend with a 40' version and he has paravanes and fins to control the roll. Catamarans and trimarans are the only hull forms that have lots of primary stability , secondary stability and the ability to cheat the displacement hull speeds limitations in one package.

Water ingress in the lazz shorted the inverter which fed the stabilizer cooling pump.
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Old 05-05-2015, 01:34 PM   #106
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Cats and trimarans are very stable, even when upside down. At least a monohull with reasonable watertight integrity would right itself if capsized.
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Old 05-05-2015, 03:24 PM   #107
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Quote:
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Maybe i don't understand your definition of 'swiss army knife liveaboard', but wouldn't this very first boat on this other forum meet that definition?
Powercat Trawlers

...and its right down in Florida near you
Brian,

We both looked - rather, drooled over - that boat. But it's a lot bigger than we've been thinking of (about 50', maybe a little more), and quite a lot more $$$. But I love that aft deck / swim platform combination!!! (And a lot else about it.)
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Old 05-05-2015, 08:02 PM   #108
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Quote:
Originally Posted by brian eiland View Post
I sometimes go back to this photo reference,...in a sea that is not that big,....vessel lost its stabilization system

I am in the last few days of a delivery of a N46 from So. Cal. to the Cal. Delta, that pic is exactly what it felt/looked like last Saturday night outside of the dreaded Potato Patch. We had to pull the paravanes up as the amount of pot floats offshore, combined with a 10'/10sec swell period (with a number of bigger combo waves) and a beam sea at night made running with the rig deployed foolish. It was a damn long 6 hrs to roll in the trough while hanging on to anything that was fixed.
The entire time I was thinking "man it would be killer to be on a 45' cat in this crap"
How many cats have flipped in the last 10 years vs mono hull that have rolled?.
Yes in the early days of cats they did flip as builders installed rigs that didn't come down before the cat rolled over. Now the rigs typically go before the boat does.
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Old 05-05-2015, 11:47 PM   #109
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Damn that sounds like soo much fun

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I am in the last few days of a delivery of a N46 from So. Cal. to the Cal. Delta, that pic is exactly what it felt/looked like last Saturday night outside of the dreaded Potato Patch. We had to pull the paravanes up as the amount of pot floats offshore, combined with a 10'/10sec swell period (with a number of bigger combo waves) and a beam sea at night made running with the rig deployed foolish. It was a damn long 6 hrs to roll in the trough while hanging on to anything that was fixed.
The entire time I was thinking "man it would be killer to be on a 45' cat in this crap"
How many cats have flipped in the last 10 years vs mono hull that have rolled?.
Yes in the early days of cats they did flip as builders installed rigs that didn't come down before the cat rolled over. Now the rigs typically go before the boat does.
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I have never heard of a large cat trawler cat flipping, I have also never heard of a displacement trawler yacht rolling and not sinking. There are self righting purpose built monohull surf boats.
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Old 05-05-2015, 11:47 PM   #110
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Quote:
Originally Posted by N4712 View Post
Water ingress in the lazz shorted the inverter which fed the stabilizer cooling pump.
Ahh, is this another issue with dry stack - lack of excess cooling water?
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Old 05-06-2015, 03:15 AM   #111
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Quote:
Originally Posted by hollywood8118 View Post
I am in the last few days of a delivery of a N46 from So. Cal. to the Cal. Delta, that pic is exactly what it felt/looked like last Saturday night outside of the dreaded Potato Patch. We had to pull the paravanes up as the amount of pot floats offshore, combined with a 10'/10sec swell period (with a number of bigger combo waves) and a beam sea at night made running with the rig deployed foolish. It was a damn long 6 hrs to roll in the trough while hanging on to anything that was fixed.
The entire time I was thinking "man it would be killer to be on a 45' cat in this crap"
How many cats have flipped in the last 10 years vs mono hull that have rolled?.
Yes in the early days of cats they did flip as builders installed rigs that didn't come down before the cat rolled over. Now the rigs typically go before the boat does.
HOLLYWOOD
Coast Guard said today the waves were breaking over Potato Patch Shoal.
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Old 05-06-2015, 06:37 AM   #112
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"At least a monohull with reasonable watertight integrity would right itself if capsized. "

Sure! But do you think an acre of 1/4 inch car glass in most deck houses is enough?

"How many cats have flipped in the last 10 years vs mono hull that have rolled?."

As few boats , except sail boats , go across blue water , the numbers will be hard to find.
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Old 05-06-2015, 07:29 AM   #113
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Ahh, is this another issue with dry stack - lack of excess cooling water?

NotT sure when they started but my Stabs have a keel cooler. Or most of the new ones have two cooking pumps both electric and hydraulic.
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Old 05-06-2015, 08:27 AM   #114
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Quote:
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It's not the interior finish that totally turns me off . It's the two or three hulls. To me, there is no way to make a multi-hull look good no matter how nice the interior finish might be.

Again, a totally subjective opinion.
I would certainly agree that it is tough to make a multihull look appealing in the traditional sense. It does get a little easier as you get larger.

Here are a couple of designs I had sitting on my computer. The first one is a very early model of a power cat being proposed by the French builder Multiplast. I saw this over in France around 1984.
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The second one is a cat by that same builder built around 2005. I could well imagine that same model without the rig as quite a nice looking power cat.
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Old 05-06-2015, 09:02 AM   #115
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Quote:
Originally Posted by FF View Post
"At least a monohull with reasonable watertight integrity would right itself if capsized. "

Sure! But do you think an acre of 1/4 inch car glass in most deck houses is enough?

"How many cats have flipped in the last 10 years vs mono hull that have rolled?."

As few boats , except sail boats , go across blue water , the numbers will be hard to find.
I admit that my statement is probably more applicable to sailing vessels. There's no way I'd want to be in any boat -- especially a monohull trawler -- that is capsized!
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Old 05-06-2015, 10:08 AM   #116
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I'd don't mind the looks of the Bamba 50. They make a motorsailer version as well.
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Old 05-06-2015, 11:51 AM   #117
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Coast Guard said today the waves were breaking over Potato Patch Shoal.
weather on the coast has been a P.I.T.A. for a few weeks.. I had to wait in Santa Barbara for 4 days to get a three day window to get to the Bay, then the window slammed shut!.
Santa Barbara is a great place to get stuck though!
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Old 05-06-2015, 12:37 PM   #118
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Your right about that

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weather on the coast has been a P.I.T.A. for a few weeks.. I had to wait in Santa Barbara for 4 days to get a three day window to get to the Bay, then the window slammed shut!.
Santa Barbara is a great place to get stuck though!
Hollywood
Are you in the Delta now?
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Old 05-06-2015, 02:28 PM   #119
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Are you in the Delta now?
Yes, Pittsburg/Antioch area kiteboarding today at Sherman island.. damn the wind blows like stink there.
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Old 05-07-2015, 09:31 PM   #120
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yes it does

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Yes, Pittsburg/Antioch area kiteboarding today at Sherman island.. damn the wind blows like stink there.
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Calms down about sept.
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