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Old 27-06-2010, 11:44   #1
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Mono vs Multihull Comfort in Rough Seas

Mono vs. Multi Hull Comfort in Rough Seas
I am new to sailing and the following question will only help to prove it.

As I ponder between which boat I would like to trade my current sailboat, a
Lido 14 in for I am torn between a Friendship 75 monohull, or
the Privilege 745 Multihull design as my favorite fantasy boat.

I understand that Multihulls seem to be much faster then the Monohulls, but
I am curious to know what a Multihull is like if rough seas.

It would seem to me that with the Multihull while nicer on smooth seas could be
much worse when faced with the roll and pitch axis of two hulls rolling over 20 to
30 foot swells.

Can anyone help with the question?
Thank You
Bill
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Old 27-06-2010, 11:51   #2
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I haven't done the 30 foot seas yet, but in 38 knots and six foot seas my cat (40 LOA) tracks like it is on rails. There is a completely different motion. You need to take one out on a charter to get a feel for it.
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Old 27-06-2010, 12:10   #3
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A Catarmaran when loaded down with cruising gear is no faster than a deep keeled cruising boat. The different motions when in a seaway, are of a personal preferance.
The cost of cruising in a cat are one hull times two, ie double., when using marinas.Zis is so confuzing, i zink I go Zailing, Ja?
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Old 27-06-2010, 12:15   #4
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In 20 foot swells no one is comfortable.
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Old 27-06-2010, 12:22   #5
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The Privelege 745 is simply in a league of its own IMHO. What an incredible yacht. Unless I am wrong though there are only 3 of them in the world and only one Friendship 75. Not sure any are for sale.
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Old 27-06-2010, 12:29   #6
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Quote:
Originally Posted by holmek View Post
A Catarmaran when loaded down with cruising gear is no faster than a deep keeled cruising boat. The different motions when in a seaway, are of a personal preferance.
The cost of cruising in a cat are one hull times two, ie double., when using marinas.Zis is so confuzing, i zink I go Zailing, Ja?
Cost of cruising is not double, unless you take an inner slip. On an inner slip you are taking two spaces and I can understand that (and would pay it, if it was ever that important). On outer docks or T-end slips we generally pay the same as a mono or in some cases we are asked to pay 1.5x. Never double.

In 9 years owning a trimaran we have been asked to pay double only once, and politely declined. When we are asked to pay 1.5x we almost always decline, telling the marina we would prefer to anchor out or find another marina, and we are happy when able to do it in sight of them.
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Old 27-06-2010, 12:33   #7
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70 footers, mono or multi, are going to have much smoother rides than a 40 footer, mono or multi. Of course, the sea is still the sea and it can show all of us who's really the boss.

If you've got the bucks for either of those, then I imagine you also have the bucks to hire the best consultants available.

If you actually get one of them -- either one -- can I crew for you? Just once is fine!

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Old 29-06-2010, 17:18   #8
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Rough seas are, in my opinion, to be avoided where possible. Unless you are (a) racing, or (b) make a mistake with the weather forecast, you really don't need to be out in super-rough conditions. If its going to be nasty, swing on the anchor until conitions improve. It seems disingenuous to put too much emphasis, when choosing a boat, on how a boat performs in a certain conditions, when you will only probably spend less than 1% of your time in those conditions. Choosing your boat on how comfortable it is at anchor would be far more sensible, for mine.
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Old 29-06-2010, 17:32   #9
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Quote:
Originally Posted by holmek View Post
A Catarmaran when loaded down with cruising gear is no faster than a deep keeled cruising boat.
True, but if 2 people and cruising gear was on a 35 footer it would sail well.
If those same 2 people and the same cruising gear were put on a 50 footer it would sail even better.

If you now put them and the same gear on a 75 footer?
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Old 29-06-2010, 18:16   #10
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Old 29-06-2010, 18:49   #11
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I am sure Alliaura would be happy to take an order however! From speaking with the delivery team for the Privilege's, they indicated a world of difference between the offshore 395 and the 445. I tried to get them to describe it and they said it was just, "ahhhhh". If there is that difference between a 40 footer and 45 footer, I can imagine the difference between a 75 footer! I'd imagine it to be VERY pleasant. Besides, in rough seas, just have your heli come and pick you up!
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