65ft aluminum mono vs 50ft cat

[Matt Johnson]

Can we just make other suggestions instead? If so, I'd 100% go this route if I had the cash. https://www.yachtworld.com/boats/201...rr-63-3685169/

At least a 2 mil boat when launched... now just $550K

[smj]

Originally Posted by Na Mara

I second the point about size-fun curve being like the income-wellbeing curve. Beyond a certain point more of the former just decreases the latter. However, the correct measure of size in the boat world is displacement rather than length. The perfect size of yacht for a cruising couple to my mind is in the 8-15 ton range. The great thing about cats is you can get a lot of real estate for that displacement. But I also know some ultralight displacement monos in the 60-65 ft range within this bracket as well. Any of these would be a lot of fun. However, I have extensive experience of a mono in the 20ton range And I can safely say that it’s a lot less fun for a cruising couple than my present boat (11 ton lightship)

So our 3 ton cat doesn’t cut the mustard?

[Training Wheels]

Neither does our 4 ton tri!

[smj]

Originally Posted by Training Wheels

Neither does our 4 ton tri!

Guess we are both outcasts........or live a less rewarding lifestyle! [emoji23]

[mako]

Originally Posted by funjohnson

Can we just make other suggestions instead? If so, I'd 100% go this route if I had the cash. https://www.yachtworld.com/boats/201...rr-63-3685169/

I wonder how far you’d get on your circumnavigation before that keel breaks off like a twig after hitting anything harder than a jellyfish?

[tomfl]

Originally Posted by smj

Guess we are both outcasts........or live a less rewarding lifestyle! [emoji23]

Me too, only 4 tons.

[Na Mara]

I would say that when couples cruising a 3-4 ton lightship multi is going to be suboptimal.

1 the stores most couples will bring aboard will severely impact the trim of such light craft.

2 I know from personal experience that very light multis have quite a lively motion in a seaway.

Such craft can be exciting race hounds of the sea and a lot of fun to sail, but I would hold fast that they do lie outside the sweet spot for fun and comfortable sailing. Of course you can choose to have such a boat just as you can choose to earn well under what is conducive to wellbeing. Or as the OP you might go the other way just like someone choosing to earn well over what maximizes wellbeing. The world would be boring if everyone did the same thing. But I still maintain that the sweet spot is about where I said it was.

[Manateeman]

Hi. Kiwi Spirit is a beautiful vessel by a first rate builder at a fraction of its replacement cost. Like all boats there are trade offs. Carbon fiber electrical conductivity. Repair. Fast hull and fast motion. What kind of hit can it take from a reef or lightning and where can it be correctly repaired. At what cost. Is she comfortable in nasty weather. You can’t outrun them all.
I’ve built in everything from wood to infused carbon, major oem to custom, traditional to cutting edge. There is no perfect design, builder or material.
Lyman Morse will build you whatever your heart desires for 2 million.
She is a very pretty vessel. Diametrically opposite my boat. Which is to say... what a dull world it would be...if all looked the same.
Happy trails to you.
Mark, a boatbuilding manatee.

[smj]

Originally Posted by Na Mara

I would say that when couples cruising a 3-4 ton lightship multi is going to be suboptimal.

1 the stores most couples will bring aboard will severely impact the trim of such light craft.

2 I know from personal experience that very light multis have quite a lively motion in a seaway.

Such craft can be exciting race hounds of the sea and a lot of fun to sail, but I would hold fast that they do lie outside the sweet spot for fun and comfortable sailing. Of course you can choose to have such a boat just as you can choose to earn well under what is conducive to wellbeing. Or as the OP you might go the other way just like someone choosing to earn well over what maximizes wellbeing. The world would be boring if everyone did the same thing. But I still maintain that the sweet spot is about where I said it was.

The lightweight multi may be suboptimal to you but not others.
We have to watch our weight but with full cruising stores onboard we still glide over the waves rather than through them. Of course our full stores don’t include a washer/dryer, ice machine or 4 heads.....but it is a sailing vessel?
We treat our lightweight multi as a sailing vessel first while others treat there’s as a shoreside residence first, nothing wrong with either choice.

[barnakiel]

I too will affirm displacement is very important and often overlooked. LOA is a fine proxy, but only a proxy.


Maximum sail area will be dictated by displacement to achieve some performance point. And sail area will limit how much of a boat we can handle, whether manually or else with hydraulic or electric crutches.


65ft mono is a hell of a boat, no matter which displacement bracket you are in. A 50ft cat can be a handful too, but may be the easier boat. (Assuming we want to drive them to full potential).


b.

[MicHughV]

I had a friend of mine pull up on a cat not so long ago....doing a delivery....about a 50' cat.

Climbing aboard, I noted, that to hoist the battened mainsail required a two-part pulley system and an electric winch to get the damn main up the mast...at which point I lost interest in everything else.......

[Manateeman]

Here are some stability calculations which might prove useful. I’m using Principles of Yacht Design by Larsson and my own vessel, details at Ted Brewer .com / Shenanigan. I’ve got to increase sail area to equal the catamaran ratio.
Now if I heighten my mast I might be able to keep up with my friends catamaran. Yes. So I’m using the air draft of Kiwi Spirit at 84 feet. Now as a 200 pound manatee, I climb to the masthead to get an idea of proper backstay tension...oh my TODO...glug glug...we seem to have capsized.
No perfect design, construction nor material. Nor, number of hulls.
Happy trails to you.
Manatee

[smj]

Originally Posted by Manateeman

Here are some stability calculations which might prove useful. I’m using Principles of Yacht Design by Larsson and my own vessel, details at Ted Brewer .com / Shenanigan. I’ve got to increase sail area to equal the catamaran ratio.

Now if I heighten my mast I might be able to keep up with my friends catamaran. Yes. So I’m using the air draft of Kiwi Spirit at 84 feet. Now as a 200 pound manatee, I climb to the masthead to get an idea of proper backstay tension...oh my TODO...glug glug...we seem to have capsized.

No perfect design, construction nor material. Nor, number of hulls.

Happy trails to you.

Manatee

Mr. Manateeman, would this be your friends catamaran?

If so you may have a fighting chance of keeping up! Not sure how they will reef their sail in heavy weather, but I’m sure your manatee powered vessel may be able to out paddle the electric trolling motor. Hopefully you will be cruising in a grass bottomed area to keep your manatee motors fueled up!

[gonesail]

Originally Posted by s/v Jedi

You mentioned around the world so the search term for that is “Sundeer”. Only a single 60’ listed now but I know who to contact for more options incl. 64’[

what he said. unless you want a trawler then Nordhavn.

[smj]

Originally Posted by gonesail

what he said. unless you want a trawler then Nordhavn.

The Sundeers are really pretty monohulls but from my limited experience they appear to roll at anchor. Must be the skinny beam?