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-   -   Catamaran vs Monohull Crew Safety (https://www.cruisersforum.com/forums/f48/catamaran-vs-monohull-crew-safety-226982.html)

mglonnro 25-11-2019 09:30

Catamaran vs Monohull Crew Safety
 
Cheers,

I'm in the initial stages of considering moving from a monohull to a catamaran (maybe some years down the road).

When googling catamaran safety issues, the by far most mentioned topic seems to be whether a catamaran can capsize too easily.

This thread is NOT about that! (I think I've found quite reassuring answers to the capsizing questions.)

What I started thinking about, though, were all the other minor and major incidents that take place on recreational sailing boats (everything from tripping and bruising yourself to going overboard), and how sailboat heeling might affect the frequency of these.

Everything gets much more difficult in a heeling sailboat so my initial thought is that less heeling would, overall, result in fewer injuries?

What say you?

mglonnro 25-11-2019 09:39

Re: Catamaran vs Monohull Crew Safety
 
I'll add this quote I found:

Quote:

Unsurprisingly, tripping and falling are the most common ways sailors injure themselves on board.

In a survey conducted by Nathanson and his colleagues, 30% of all those interviewed on keel boats said the mechanism of their injury was falling or tripping.

These resulted in fractures, head injuries, falls overboard, and falls through open hatches.
https://www.ybw.com/expert-advice/co...oid-them-42321

Gtstricky 25-11-2019 09:56

Re: Catamaran vs Monohull Crew Safety
 
Wider beam and less heeling would probably lead to less injuries. I doubt it is a significant difference. Getting on and off, boom movement, wet slippery decks are the same everywhere.

44'cruisingcat 25-11-2019 12:44

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by Gtstricky (Post 3023163)
Wider beam and less heeling would probably lead to less injuries. I doubt it is a significant difference. Getting on and off, boom movement, wet slippery decks are the same everywhere.

Not true. Getting on and off cat's is generally easier = safer, with near waterline transom steps. Booms are usually well above head height in the cockpit, and wide travellers control boom movement better. A backwinded main on a cat is generally a non-event.

Most boating fatalities result from people falling overboard. Catamarans greatly lessen that risk.

mglonnro 25-11-2019 13:17

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by 44'cruisingcat (Post 3023281)
Most boating fatalities result from people falling overboard. Catamarans greatly lessen that risk.

It would be interesting to know statistics about non-fatal injuries. Fatalities are (luckily) rare, and capsizes even more rare, but what a brilliant sales argument for multihulls, if they as an ”everyday environment” are safer for your family with kids.

StuM 25-11-2019 16:56

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by 44'cruisingcat (Post 3023281)
Not true. Getting on and off cat's is generally easier = safer, with near waterline transom steps. Booms are usually well above head height in the cockpit, and wide travellers control boom movement better. A backwinded main on a cat is generally a non-event.

Most boating fatalities result from people falling overboard. Catamarans greatly lessen that risk.


This! Especially the last part. It takes a fair bit of stupidity to go overboard on a cataraman, even if not strapped on.

billknny 25-11-2019 18:28

Re: Catamaran vs Monohull Crew Safety
 
I suspect you would get very different kinds of answers if you posted this question in the "Monohull" forum.

The difference is minor, if even real. Different kinds of issues, but really it is far more a function of the individual boat than the number of hulls.

I taught sailing to adults for many years, on both monos and cats. The closest I ever came to having a student seriously injured was on a FP 39. Does that mean cats are more dangerous? No. Just one data point. The closest I ever came to falling overboard during a class was also on that boat. The place you work the sheets has only the knee-high lifelines behind you. If a line suddenly comes free while you are pulling hard, you ARE going swimming. The idea that only a real klutz could fall off a catamaran is just plain wrong.

Far more dangerous on any boat are highly tensioned lines and rigging, and booms. Double that with booms. I look at those sky high booms on most condomarans and think they are insanely dangerous if anybody needs to get up there too clear a problem while the boat is in a seaway. On a lot of cats there are LOTS of steps and level changes just in the cockpit. One misplaced foot and you're hurting. The idea that catamarans are SO AMAZINGLY stable in rough water that you can't lose your footing is incredibly unrealistic. It is the kind of thing only a totally unethical salesman could say with a straight face.

In any case, it varies so much from one boat design to another, any generalization about "all monos" or "all cats" is just very silly. If this is even a third level issue you have in choosing between a cat and a mono, you are seriously experiencing analysis paralysis.

There are mono fanboys, and there are cat fanboys. Don't listen to either of them if you want a real answer.

double u 25-11-2019 19:00

Re: Catamaran vs Monohull Crew Safety
 
Crew agility, body control, fitness, experience, risk awareness, prudence..counts muchmuch more than the number of hulls

boom23 25-11-2019 19:30

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by billknny (Post 3023468)
... The idea that catamarans are SO AMAZINGLY stable in rough water that you can't lose your footing is incredibly unrealistic. It is the kind of thing only a totally unethical salesman could say with a straight face.

In any case, it varies so much from one boat design to another, any generalization about "all monos" or "all cats" is just very silly. If this is even a third level issue you have in choosing between a cat and a mono, you are seriously experiencing analysis paralysis.

There are mono fanboys, and there are cat fanboys. Don't listen to either of them if you want a real answer.

What he (very well) said...

sailnautilus 25-11-2019 19:42

Re: Catamaran vs Monohull Crew Safety
 
Large monohull owner for 30+ years, really wanted to be a catamaran owner....
Cost no object...
Retired and in excellent physical condition.....
Sailed an Antares from Florida to Bermuda, sailed a Privilege in the Pacific. Not likely to buy a catamaran....
In short, be sure that you sail either one before committing. Not a 2 hour sea trial, but real ocean sailing in adverse conditions.

NorthernMac 25-11-2019 20:09

Re: Catamaran vs Monohull Crew Safety
 
I'd also imagine the mission and demographics factor in.

Are we talking about using the boat like a big floating RV mostly just motoring around flat water, or are we talking about getting into some weather and putting miles on?

Mr B 25-11-2019 20:13

Re: Catamaran vs Monohull Crew Safety
 
A Catamarans deck is flat and level most of the time, At Sea,
Where as a Mono's deck is canted on an angle, At Sea,
You would slip more on an angled deck, Especially wet,
More so in high winds and a rough sea, And waves crashing over the deck,

My Cat, I dont get wet and I dont have waves over my deck,
I still wear a chest harness on a jackline and a short lanyard, So I cant go overboard even unconsious,
Im not keen on watching my Cat sail off with out me, If I fell overboard,

NorthernMac 25-11-2019 20:34

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by Mr B (Post 3023506)
A Catamarans deck is flat and level most of the time, At Sea,
Where as a Mono's deck is canted on an angle, At Sea,
You would slip more on an angled deck, Especially wet,
More so in high winds and a rough sea, And waves crashing over the deck,

My Cat, I dont get wet and I dont have waves over my deck,
I still wear a chest harness on a jackline and a short lanyard, So I cant go overboard even unconsious,
Im not keen on watching my Cat sail off with out me, If I fell overboard,

Never had waves on your deck?

downunder 25-11-2019 21:53

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by billknny (Post 3023468)
I suspect you would get very different kinds of answers if you posted this question in the "Monohull" forum.

The difference is minor, if even real. Different kinds of issues, but really it is far more a function of the individual boat than the number of hulls.

I taught sailing to adults for many years, on both monos and cats. The closest I ever came to having a student seriously injured was on a FP 39. Does that mean cats are more dangerous? No. Just one data point. The closest I ever came to falling overboard during a class was also on that boat. The place you work the sheets has only the knee-high lifelines behind you. If a line suddenly comes free while you are pulling hard, you ARE going swimming. The idea that only a real klutz could fall off a catamaran is just plain wrong.

Far more dangerous on any boat are highly tensioned lines and rigging, and booms. Double that with booms. I look at those sky high booms on most condomarans and think they are insanely dangerous if anybody needs to get up there too clear a problem while the boat is in a seaway. On a lot of cats there are LOTS of steps and level changes just in the cockpit. One misplaced foot and you're hurting. The idea that catamarans are SO AMAZINGLY stable in rough water that you can't lose your footing is incredibly unrealistic. It is the kind of thing only a totally unethical salesman could say with a straight face.

In any case, it varies so much from one boat design to another, any generalization about "all monos" or "all cats" is just very silly. If this is even a third level issue you have in choosing between a cat and a mono, you are seriously experiencing analysis paralysis.

There are mono fanboys, and there are cat fanboys. Don't listen to either of them if you want a real answer.

The earlier model FP are awkward to climb around with the high transoms. Newer models are much safer.

mglonnro 25-11-2019 22:25

Re: Catamaran vs Monohull Crew Safety
 
The idea that ”don’t listen to anyone” is boring 😄 The idea that ”there is no meaningful difference” is counterintuitive (even though it might, of course, be true).

I’ve never been out in a catamaran in really shitty weather. I have in a monohull. Moving around inside (and outside) a boat that is jumping/slamming the waves and heeled over, it takes a lot of energy. And a lot of care not to loose one’s balance. This leads to fatigue, which in part might lead to other undesired things happening.

Anyway, this thing would need to be researched in some way, to find good answers. Without some kind of evidence, I refuse to believe that ”it doesn’t matter” 😄

tomfl 25-11-2019 22:31

Re: Catamaran vs Monohull Crew Safety
 
As one poster mentioned earlier there are so many variables in boat design of both multihulls and monohulls the question is almost meaningless. I just got back from crewing/sailing a Catalina 34 in the Baja Ha-Ha and compared to my Seawind 1000 I thought that mono was an extremely dangerous boat. There is a lot more space to walk forward on my cat and hand holds along the cabin top. The wheel on Catalinas in general seemed way too big and there was way less than a foot between the wheel and the side of the cockpit to get aft of the wheel to steer.

The anchor locker was right at the bow and the windless was in the locker so you had to wrap the line around the windless and then sorta stand up to press the deck mounted switch with your foot and be high enough to see the direction of the anchor line; not an easy task in any type of seaway. My cat has a paddle to control the windless and I can stand in one of the bow pulpits to have a clear view of which direction the anchor line is. Due to the cleat placement it is trivial to rig a preventer on my boat without standing up or leaving the cockpit, something not so easily done on the on the Catalina. It is also much easier to reef on my boat sitting down on the salon roof, while you have to stand up on the Catalina. Not to mention all my lines lead to the starboard steering station while on the Catalina it took three people to adjust the traveler, main sheet, jib sheets and Cunningham when tacking or gybing; along with a helmsman. Even tacking with my screecher it is a one man job.

While it was mentioned earlier the FP had a clear shot out of the cockpit and off the stern into the water on my boat there is a bench seat across the stern along with davits which normally hold the inflatable. If you lost it pulling on a sheet you might fall on your buttissmoo or more unlikely in the inflatable if you really screwed the pooch but it is hard for me to see how someone could go overboard.

To counter this I am sure there are top tier monohulls that have a very well designed layout that would offer just as many safety features as my boat does.

But one thing I have not seen mentioned is that while monos do heel, sometimes a lot, when sailing as a rule a multihull will have much less heel. But to me even more importantly is that it is quite common for a muiltihull to alter course a few degrees to get a much more kindly motion in a seaway. In fact often going up wind if you fall off the VMG will often be better than sailing higher up on a more direct course. And even if the VMG is not as good most cats are fast enough that it is worth trading a more seakindly motion for extra time on the passage; not to mention the added safety of a boat that is not bashing into the waves.

So while the key to addressing the question is how well the boat is designed as was posted earlier the real danger is a capt/crew that makes mistakes no matter how safe the boat is.

Tupaia 26-11-2019 04:03

Re: Catamaran vs Monohull Crew Safety
 
There is a significant difference between mono and catamaran and that is the type of motion. The motion on a mono is continuous and often severe compared to a cat that is much less severe but more jerky. The motion on a cat is less predictable by comparison.

Because the deck of a cat appears stable and safe, short sudden unpredictable movements IMO make it more likely that an uninitiated person may have an accident on deck. On a mono you are always aware of the continuous movement so will be more cautious and the need to clip on more obvious.

I totally agree with a previous post concerning high booms and the need to climb halfway up the mast to clear any problem. I am also not a fan of fly bridges on cats in any sort of weather the movement being up so high is exaggerated and getting from the cockpit to the fly-bridge especially via an external stairway is IMO dangerous.

So yes, in all but the most benign conditions you should still clip on when going forward on a cat. It is unfair to regard cats as more or less dangerous just that the perception of danger is less on a cat.

Having said all this the comfort travelling on-board a cat is massively better than a mono, cups and wine glasses will remain where you left them and fixed stoves with no gimbals or pot holders are the norm. Toilets remain upright.

Michael Pope 26-11-2019 10:18

Re: Catamaran vs Monohull Crew Safety
 
Impossible to comment logically on this as there is too much emotion.

The only comment I have is AFTER THE BOAT HAS CAPSIZED!!
I prefer a mono hull. Because I survived and made jury rig and sailed 300 plus miles over 11 days and was rescued. I thought during that time --
It would be very lonely on the bottom of a Multi hull. and hard to avoid the temptation of just slipping off and joining the Mahi Mahi accompanying the boat.
Also I probably could not access the bottle of Bombay Gin which survived quite bravely in the stout Liquor locker and allowed me a little sleep with the pain of a broken shoulder. Also some food and a sextant. The rest of the boat was wasted totally and trying to be a giant washing machine using Battery acid for bleach.
But she saved my life "Bless Her"----------------------Michael Pope

docwood 26-11-2019 10:37

Re: Catamaran vs Monohull Crew Safety
 
:redface:
Quote:

Originally Posted by billknny (Post 3023468)
I suspect you would get very different kinds of answers if you posted this question in the "Monohull" forum.

The difference is minor, if even real. Different kinds of issues, but really it is far more a function of the individual boat than the number of hulls.

I taught sailing to adults for many years, on both monos and cats. The closest I ever came to having a student seriously injured was on a FP 39. Does that mean cats are more dangerous? No. Just one data point. The closest I ever came to falling overboard during a class was also on that boat. The place you work the sheets has only the knee-high lifelines behind you. If a line suddenly comes free while you are pulling hard, you ARE going swimming. The idea that only a real klutz could fall off a catamaran is just plain wrong.

Far more dangerous on any boat are highly tensioned lines and rigging, and booms. Double that with booms. I look at those sky high booms on most condomarans and think they are insanely dangerous if anybody needs to get up there too clear a problem while the boat is in a seaway. On a lot of cats there are LOTS of steps and level changes just in the cockpit. One misplaced foot and you're hurting. The idea that catamarans are SO AMAZINGLY stable in rough water that you can't lose your footing is incredibly unrealistic. It is the kind of thing only a totally unethical salesman could say with a straight face.

In any case, it varies so much from one boat design to another, any generalization about "all monos" or "all cats" is just very silly. If this is even a third level issue you have in choosing between a cat and a mono, you are seriously experiencing analysis paralysis.

There are mono fanboys, and there are cat fanboys. Don't listen to either of them if you want a real answer.


docwood 26-11-2019 10:45

Re: Catamaran vs Monohull Crew Safety
 
Almost all my experience is with mnohulls. The one time I helmed a cat for a day what I didnt like was everyone else was up front sunbathing or inside visiting and there I was lonely at the wheel...lol. In the cockpit of a monohull and least I had socialization. Ona little more serioous note when sailing in a narrow channel I like someone else on the GPS so I can keep mu eyes on everything else. That person is right there so we can communicate well. The cat I was on had no GPS (older cat for daysailing only). I was also on a perch of sorts. On most modern cats where is the GPS and is it available to a second person as a navigator.

boom23 26-11-2019 11:12

Re: Catamaran vs Monohull Crew Safety
 
It is VERY difficult, to capsize a cruising catamaran. It is probably more difficult than getting knocked down on a monohull. The captain has to make a lot of mistakes to reach that point of failure. We are not talking about racing boats here. Racing boats are sailed much more aggressively and, usually, in different weather conditions.

I've been in 40+ kts wind with huge (for me) waves south of Vanuatu on my ex-Lagoon 450 and, even though it was very intimidating, it was not that scary. The ride was jerky and very loud, but safe. If a boat is sailed correctly, it should make it through.

Catamarans and monohulls have pros and cons. An inexperienced/bad captain in a rough weather situation can make either one dangerous. Personally, I found the catamaran easier to sail as it did not respond as much as my monohull. In other words, you can make more mistakes on a cruising catamaran than on a monohull, without realizing it.

It is all a matter of personal preference. You just need experience both in the conditions you plan to use them and decide what is best for you.

Cadence 26-11-2019 12:06

Re: Catamaran vs Monohull Crew Safety
 
I feel sure the reduced heel makes for fewer knee knockings.
However, it's like everything else, what is not expected spawns complacency. On a boat, is not the place to get lax. JMHO

KP44 26-11-2019 12:23

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by billknny (Post 3023468)

The difference is minor, if even real.

Most fans of Cats seem convinced by their experience on terra-firma, rather than by any evidence. A bit of heel is no problem.

Cruisers seldom heel over like the race boats we see on movies.

Just point into a wind for 2 hours without the engines before you purchase a Cat. That's the most common complaint I hear from Cat owners. They only want to travel upwind when there is a flat sea; no wind. So they prefer to motor in calm to move upwind.

keyway 26-11-2019 12:30

Re: Catamaran vs Monohull Crew Safety
 
Well I fell down the campanion way on my cat. No serious injury. Ain’t no cure for stupid.

double u 26-11-2019 16:05

Re: Catamaran vs Monohull Crew Safety
 
“cups and wine glasses will remain where you left them “
absolutely hilarious!!! I watch you going up the Red Sea...
Ours was just a Wharram = not really fast & relatively gentle motion, but there were lots of times when one had to guide the cup to the mouth with both hands.
This “cups & glasses“ argument can only come from somebody inexperienced or lying!

double u 26-11-2019 16:10

Re: Catamaran vs Monohull Crew Safety
 
Please nobody get me w.rong: a GOOD cat can be the ideal tradewind-rtw boat (albeit an expensive one), the “twin hulled vessels“ we've been seeing a round here I would not, with very few exceptions include though

conchaway 26-11-2019 16:28

Re: Catamaran vs Monohull Crew Safety
 
Please be sure not to intimate anything which could hint at possibly disparaging catamarans on this site ( We are watching you).

peterlewis19 27-11-2019 00:17

Re: Catamaran vs Monohull Crew Safety
 
I find the age-old argument of which is better a cat or mono is never spoken of form a point of equal and fair comparison. The cost of a cat is FAR more than an equivalent mono. This question comes from a Hanse 388 owner so has no relevance to a 40 - 44 cat. To gauge the difference you must compare a 50 - 55-foot mono to a 40 - 44-foot cat. That is because they are about the same price but not spec. The mono would be better speced than the cat at that price. The mono would have easily the same outside space. Probably more inside space and if you are a livaboard the load capacity is uncomparable. Its never a fair argument.

double u 27-11-2019 00:34

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by conchaway (Post 3024055)
Please be sure not to intimate anything which could hint at possibly disparaging catamarans on this site ( We are watching you).

With a 7 year/38000nm cat- rtw (& 2,3 Mono rtws) to my credit I consider myself to be allowed to write any-& everything about cats...

mglonnro 27-11-2019 00:41

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by peterlewis19 (Post 3024265)
I find the age-old argument of which is better a cat or mono is never spoken of form a point of equal and fair comparison. The cost of a cat is FAR more than an equivalent mono. This question comes from a Hanse 388 owner so has no relevance to a 40 - 44 cat. To gauge the difference you must compare a 50 - 55-foot mono to a 40 - 44-foot cat. That is because they are about the same price but not spec. The mono would be better speced than the cat at that price. The mono would have easily the same outside space. Probably more inside space and if you are a livaboard the load capacity is uncomparable. Its never a fair argument.

First I have to say, I was thinking more about 50-60 ft cats. The question was not in reference to our current boat!

Secondly, I think it's a very fair point! Since most of us have budget constraints, it would be fair to compare monohulls and cats in similar price ranges. (I guess, on the other hand, it's also possible to compare a new Jeanneau to an older model Lagoon, which would reduce the price gap while keeping most of the other relevant factors in place.)

Tupaia 27-11-2019 02:44

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by double u (Post 3024268)
With a 7 year/38000nm cat- rtw (& 2,3 Mono rtws) to my credit I consider myself to be allowed to write any-& everything about cats...

Interested to know what cat?

jmh2002 27-11-2019 03:02

Re: Catamaran vs Monohull Crew Safety
 
I believe that when @double u says catamaran he is referring to a Wharram, and in this case a 34ft Classic Tangaroa MKI (https://www.cruisersforum.com/forums/...ml#post2143983)

This is a world away from a modern Wharram Tiki design, which in itself is also still very far away from any normal modern 'condomaran'.

mglonnro 27-11-2019 05:31

Re: Catamaran vs Monohull Crew Safety
 
I've Googled some to find opinions relating to the theme and below is one account.

Quote:

One thing I noticed about *passagemaking on a multihull is that I had much more energy than when I go to sea on a monohull. Not being on a heel all the time means it doesn’t take as much physical effort to do simple tasks. Overall, everyone in the crew felt the same. We also dealt with tasks more readily since it didn’t take much effort to get up and deal with things.

Unfortunately, or fortunately, this applied to cooking. We were constantly preparing meals and feasting. No one lost weight as we usually do on a monohull passage, where you sometimes eat minimally since food prep and eating just feel like too much effort at times.
https://www.cruisingworld.com/sailin...-in-catamaran/

Tupaia 27-11-2019 06:34

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by double u (Post 3024037)
“cups and wine glasses will remain where you left them “
absolutely hilarious!!! I watch you going up the Red Sea...
Ours was just a Wharram = not really fast & relatively gentle motion, but there were lots of times when one had to guide the cup to the mouth with both hands.
This “cups & glasses“ argument can only come from somebody inexperienced or lying!

Neither, I bought my first mono in 1983, my first cat in 1992, I have sailed and delivered 40 different multihulls and have lived aboard my own cat for the last fifteen years covering close to 80,000NM. It is not to say that it has not been rough at times, we have "sailed", not hoved too, in 60 knots true, during a particularly nasty 50 knot storm north of NZ we decided to lay a hull and my wife suggested I take a "shower" and go to bed for a few hours which I did. So for ninety five percent of the time cups and glasses do stay exactly where you leave them. Our surfaces do have anti-slip mats but there are no fiddles.

double u 27-11-2019 18:53

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by jmh2002 (Post 3024291)
I believe that when @double u says catamaran he is referring to a Wharram, and in this case a 34ft Classic Tangaroa MKI (https://www.cruisersforum.com/forums/...ml#post2143983)

This is a world away from a modern Wharram Tiki design, which in itself is also still very far away from any normal modern 'condomaran'.

Yep correct, Tangaroa Mk1. I think the difference to the “modern“ Tiki design would mainly be in the building, not so much in the sailing: same V-hulls, nearly symmetrical fore & aft, flexible, open bridge deck.
Our Tangaroa had a cutter rig with big headsails & sufficient sailarea, so sailing abilities were quite good - for a Wharram, I don't think a lagoon 38(0) would have beaten us on many points of sail. Comfort of course...
@capsize-ability:
I can assure everybody, that this is a definite possibility! Even our Wharram - heavily laden, wider than per design - came very close...it was at the end of our rtw, so we were no greenhorns, wind maybe 25-30kn, beam-reaching in a southerly off the African coast, fetch 20nm as far as I can remember. Short steep seas, boat going great guns. Suddenly the steepness & the distance between the crests, despite not being high enough to heel the boat to a dangerous degree, was just “right“ to impart a strong rotational impulse to the boat around the longitudinal axis (roll) that the boat seemed to teeter a moment...stuff that had not moved in the strongest winds in the red sea & in 36.000 miles was thrown around. Maybe it wasn't really all that close to a capsize, but it sure felt that way. With a higher CG...
For the disbelievers: to knock over a chair you can tilt it until it falls over or you can give it a hard shove that in itself “heels“ it insufficiently, but imparts a momentum that carries it past the point of no return.

double u 27-11-2019 19:03

Re: Catamaran vs Monohull Crew Safety
 
Tupaia: which size cat?

Dockhead 27-11-2019 19:07

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by billknny (Post 3023468)
. . . .There are mono fanboys, and there are cat fanboys. Don't listen to either of them if you want a real answer.


Truer words never spoken!! :thumb:



The lack of heeling and great form stability of cats definitely make it safer, easier, and more pleasant getting around the boat in a seaway. Most of the time. On long passages on monos on a heel, getting around is exhausting and unpleasant. Absence of this is most definitely a great advantage of cats, and not just for safety.



But as has been said, it's not a magic bullet -- in certain sea conditions you will find the motion comfort much worse and it becomes difficult to get around, which means generally you head off or slow down. If you sail much upwind in strong conditions, you would probably prefer a mono despite the heeling, especially a larger mono. If you don't, you might find the advantages of cats to be irresistible -- many do.



Then of course there is a long list of other pros and cons which I won't go into.



This is all a matter of taste and a matter of where and when you sail, and how you sail, with what kind of load, etc etc, so you should charter a cat or two and get some miles under the keels to see if YOU like it, or don't. Ignore the fanboys on both sides and form your own opinion. Fanboy-ism of whatever kind is the enemy of truth. As far as I'm concerned, I like monos, I like cats, but then again, I like just about anything that floats -- I'm just an old boat whore. I even like motorboats. So don't listen to me, either :D

double u 27-11-2019 19:18

Re: Catamaran vs Monohull Crew Safety
 
“As far as I'm concerned, I like monos, I like cats...“
100% agree, but if it's ugly I dislike it no matter how many hulls it has! To paraphrase Marchaj: “Aesthetics, the forgotten factor“

44'cruisingcat 27-11-2019 22:16

Re: Catamaran vs Monohull Crew Safety
 
With mono's, it's not so much the heeling as the rolling that makes deck work more dangerous. One memory of our mono that is permanently etched is reefing in about 20 kts, with a beam swell, hanging onto the mast looking almost straight down at the water. With the mast stepped on the cabin top, the lifelines were only at about calf height and 2m away, with the boat level. Throw in some heel, and roll, and if I had let go of the mast I'd be overboard in a flash.

On the cat in similar (or worse) conditions, at the mast the lifelines are thigh height, and 3 1/2 metres away. There's virtually no way I could go over them.

mglonnro 27-11-2019 22:58

Re: Catamaran vs Monohull Crew Safety
 
Quote:

Originally Posted by 44'cruisingcat (Post 3024925)
With mono's, it's not so much the heeling as the rolling that makes deck work more dangerous.

Adding to the direct effects of heeling, I was actually thinking a lot about moving around inside the boat. With a decent amount of heel, it's not that easy. Doing this and that task (preparing food for example), it might get even more difficult.

Then there are the indirect effects. Many people write that having to operate in a constantly tilted environment requires more energy and induces fatigue. I assume that there is a clear and positive correlation between fatigue and risk of accidents, and that would be the indirect effect.


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