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Old 09-22-2016, 07:17 PM   #41
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"Gross tonnage (often abbreviated as GT, G.T. or gt) is a nonlinear measure of a ship's overall internal volume. Gross tonnage is different from gross register tonnage.[1] Neither gross tonnage nor gross register tonnage should be confused with measures of mass or weight such as deadweight tonnage or displacement."
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Old 09-22-2016, 10:05 PM   #42
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"Gross tonnage (often abbreviated as GT, G.T. or gt) is a nonlinear measure of a ship's overall internal volume. Gross tonnage is different from gross register tonnage.[1] Neither gross tonnage nor gross register tonnage should be confused with measures of mass or weight such as deadweight tonnage or displacement."
I estimated the tonnage at 120-140. What would be your best guess, Bill?
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Old 09-22-2016, 10:15 PM   #43
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Red Head isn't the offshore boat that aCappella is. But the added beam and weight of Red Head help.

We put in 2 days off the coast of NJ in 3-4' beam seas and she didn't roll at all. The boat was chartered in the Bahamas for many years and previous captains told me that they'd gotten caught in 5-8 foot choppy Gulfstream waters and it still felt safe.

That said, we'd pick our day carefully to the Bahamas or Cuba. Yes, we plan to go to Cuba once you can stay longer than 10 days. It seems like a lot of effort for such a short stay right now.
"didn't roll at all". You mean like none or just not too bad? No boat will not roll at all in a beam sea.
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Old 09-22-2016, 10:41 PM   #44
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"didn't roll at all". You mean like none or just not too bad? No boat will not roll at all in a beam sea.
She didn't move - full, dead-on beam sea rollers, 9-10 second period. We have a traditional inclinometer in the pilothouse and we were watching it in case we couldn't feel the roll. There was nothing.

Previous captains of the boat told me that there is no rolling until seas reach 5 feet or period gets much lower. The days were spectacular along the coast with the long period which is why we left.

On the Chesapeake, we had 3-5' choppy waves on the bow for half a day. We felt that although the boat bridges a lot of choppy waves and that helps.

Again though, this is no open ocean boat. We'll cross to the Bahamas or Cuba with small seas and long periods. We'll also stay more on the ICW since it only draws 4.5 feet where we'd jump outside with aCappella often. I'm interested in slowing down with Red Head.
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Old 09-22-2016, 11:31 PM   #45
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Some kind of wonder boat I guess.
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Old 09-23-2016, 12:14 AM   #46
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Ditto!

Definitely don't ask for 'papaya' while in Cuba, your wife may be upset with what you'll be offered. Just Sayin'

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Would paw paw be ok - that's what we call them..?
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Old 09-23-2016, 09:51 AM   #47
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When buying Cassava, ask for Yucca. Cassava in Cuba is a dish that is made from Yucca and served on New Years Eve.
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Old 09-23-2016, 10:07 AM   #48
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I estimated the tonnage at 120-140. What would be your best guess, Bill?
Under a hundred I would guess.

It's a measurement of interior cargo carrying capacity after all. Which used to be base on how many "tuns" a ship could carry. And tuns were wine casks as I recall. And not all interior spaces are considered as cargo carrying areas during the measurements from what I understand.

Due to how the measurements are taken, a clever NA can design a pretty large vessel that measures out to under 100 tons if need be. Say a large dinner or casino day boat for example.

The 82' I'm on has a GT of only 112.
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Old 09-23-2016, 10:09 AM   #49
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Some kind of wonder boat I guess.
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Old 09-23-2016, 11:39 AM   #50
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Under a hundred I would guess.

It's a measurement of interior cargo carrying capacity after all. Which used to be base on how many "tuns" a ship could carry. And tuns were wine casks as I recall. And not all interior spaces are considered as cargo carrying areas during the measurements from what I understand.

Due to how the measurements are taken, a clever NA can design a pretty large vessel that measures out to under 100 tons if need be. Say a large dinner or casino day boat for example.

The 82' I'm on has a GT of only 112.
Is that the GT or GRT? Sounds like GRT which would be close to our 85'.

I'm well aware of the measurement. Most boats I'm aware of have volume tonnage greater than their displacement. Now, if that boat has ballast, must take that out of that thought. But on all our boats the GRT and the ITC are 120-150% of the displacement tons. I don't know what length his boat is.

If the boat is documented then Jeffrey should have the tonnage number available to him. That displacement seems very high too. I would bet your 82' has considerably less displacement than he gave for his boat. I don't know why he gave the displacement since it is totally irrelevant. What length is your boat, Jeffrey?

Where the clever NA's really get cute is on 160-165' boats, designing them at 499 tons. People wonder why so many boats those lengths and not 150' or 170', well it's to get every inch they can and be under 500 tons.
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Old 09-23-2016, 11:44 AM   #51
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The coasters have a pretty low main deck for a lot of her length....but a hight bow area.

I think many will be suprised of her tonnage....much lower.

The low main deck might knock some tonnage off.

Still a nice boat and a lot of boat to handle with a small crew.

I think the documentation page for her has her at 60gt.
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Old 09-23-2016, 01:00 PM   #52
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Is this the Cuba thread?
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Old 09-23-2016, 01:10 PM   #53
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Is this the Cuba thread?
No, you're obviously confused. Ok, you're right. Back to Cuba.
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Old 09-23-2016, 01:52 PM   #54
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I don't know why he gave the displacement since it is totally irrelevant. What length is your boat, Jeffrey?
Displacement is the only number that really matters. All the others are just made up, BS numbers when used in the recreational world. The displacement provides help in understanding the capacity of the lift needed to haul out of the water.

Unless you're a delivery captain or run your boat commercially, the whole 100 ton captain's license makes me chuckle a bit. I'm shocked by the experience I've seen with "captains" who have their ticket. It's kind of a joke. Take a weekend class to memorize a set of rules, then document your "sea time" and whammo, you're a "captain." I know a guy who took it so seriously, he has captain stripes epaulettes on a shirt he wears to cruising parties.

Red Head is 65'. If you tried to push her off the dock, you likely wouldn't question the displacement value I provided.
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Old 09-23-2016, 02:10 PM   #55
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Red Head is 65'. If you tried to push her off the dock, you likely wouldn't question the displacement value I provided.
Well said, nothing like a dose of physics to prove a point through reality.
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Old 09-23-2016, 02:13 PM   #56
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Displacement is the only number that really matters. All the others are just made up, BS numbers when used in the recreational world. The displacement provides help in understanding the capacity of the lift needed to haul out of the water.

Unless you're a delivery captain or run your boat commercially, the whole 100 ton captain's license makes me chuckle a bit. I'm shocked by the experience I've seen with "captains" who have their ticket. It's kind of a joke. Take a weekend class to memorize a set of rules, then document your "sea time" and whammo, you're a "captain." I know a guy who took it so seriously, he has captain stripes epaulettes on a shirt he wears to cruising parties.

Red Head is 65'. If you tried to push her off the dock, you likely wouldn't question the displacement value I provided.
You're the one who brought the 100 Ton Sea Time into the discussion.

Then you feel necessary in attacking those with captain's licenses and diminishing that. Weekend class, memorize rules? You obviously have never taken a class. Sea time? Yes, important and must be documented. There are many professional captains on this site including Bill. My wife and I are among the few here who got licensed with no commercial needs and continue to upgrade our licenses and work to improve our skills but we've never worn epaulet's, but the vast majority use their licenses as professionals, professionals you now choose to put down.

I didn't know the length of your boat, which is why I asked. A 64' Nordhavn weighs about the same, so it makes sense.

Your boat looks like quite a nice, rather spectacular boat.

Now, either take it to Cuba or don't.
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Old 09-23-2016, 05:10 PM   #57
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I'm not trying to insult people who get their captains license. Great for them. I personally think it's rather amusing when you have no commercial need and get the license anyway. And yeah, I know pretty well what the class is all about and the hassles involved in keeping it. Heck, there are online captain's courses where you can sit at home and learn the rules enough to pass the test too. I don't think it makes anyone a better pilot. Although it does seem to scratch an ego itch that many "captains" appear to have.

So on your boat card, do you list something about your 100 ton license? I know you won't show it because you keep totally anonymous. But I can still wonder.
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Old 09-23-2016, 05:43 PM   #58
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I'm not trying to insult people who get their captains license. Great for them. I personally think it's rather amusing when you have no commercial need and get the license anyway. And yeah, I know pretty well what the class is all about and the hassles involved in keeping it. Heck, there are online captain's courses where you can sit at home and learn the rules enough to pass the test too. I don't think it makes anyone a better pilot. Although it does seem to scratch an ego itch that many "captains" appear to have.

So on your boat card, do you list something about your 100 ton license? I know you won't show it because you keep totally anonymous. But I can still wonder.
No. First I don't have a boat card. Second, our licenses aren't 100 Ton. And it's nothing about ego itch, it's just about learning. We came into coastal and ocean cruising brand new to it. We also got considerable training by a captain. Then some courses like Advanced Firefighting and Medical Person in Charge and Survival Craft and Rescue Boats are courses we hope are never needed. Some courses we love, some not. Celestial Navigation reminds me of astronomy in college and I didn't like it either. We both have one more course to take this year to be STCW compliant by December 31.

We have friends taking the basic captain's courses with no intent to ever get a license or it will be years away, but they just wanted to learn more in a formal environment.

We've not taken any of the courses online.

Beyond the initial courses very little is about rules.
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Old 09-23-2016, 05:53 PM   #59
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Back to the topic of Cuba, we're waiting to hear from others like Bill who are making the trip. Normal people making a normal trip there, other than claiming one of the 12 reasons.
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Old 09-23-2016, 06:53 PM   #60
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I wish one of 12 was to drink beer and party! Then I could go too.
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