Neeves
Well-known member
Yep, I think the mistake that some people make when comparing cats and monohulls is length for length they are very different. Lots of marinas charge at least 1.5 times the monohull rate due to the beam of a cat. Cats new cost a lot more than a monohull of the same length. If you compare on the basis of cost new rather than equal length then you get a lot bigger monohull for the cost of a cat. A 50ft monohull has a huge amount of volume and is very spacious and comfortable at anchor but costs less in a marina berth than a 40ft cat. Like you say horses for courses.
I did some windage measurements of cats vs monos. I was given the detailed drawing of a number of Bavarias and I had the same for our catamaran. My conclusion was that looking at both beam and length a Bav 45 had the same windage as our 38' cat. Now there are cats and cats - and Monos and Monohulls - a Lagoon is very different to our cat and a Deck Saloon Moody very different to the 'cruiser'? version of the Moody - as based on. the Hanse iterations. The other thing I noted was that if you stripped out the weight of the Bav keel the Lightwave and Bav 45 were a similar weight - so maybe contained a similar amount of fibre glass - I appreciate this is crude and worthy of a critical thread sponsored by acidic comment - but the numbers are not uncompelling. And yes I am aware mast and engines are different
Similar volumes, similar windage. I have not done the price comparison - but suspect $ for $ offers different length but a similar level of accomodation. By similar I mean - more similar than different.
One big difference is that a cat accomodation is above the water level - you look out on the anchorage from the galley, berth or saloon.
Marina costs don't worry us - I cannot recall the last time we were in a marina - we don't like the costs. - and we are more comfortable at anchor than living in a marina (and there are surprisingly few marinas between Sydney and SW Tasmania - in fact south of Sydney - none). We have good anchorages, strategically located fuel wharfs (but no Tesco (or its Oz equivalent) - hence the need to stock up as part of preparations.
The danger with multis, not true of performance tris (which do not have the volume), is that it is easy to load them down - there is simply so much space. Load them down and they are dogs on AND off the wind. You need to be strict - and have an understanding, both of you, before you commit. The weight issue is why we have focussed on aluminium anchors, smaller high tensile chain and snubbers, why we have a desalinator and only a 2hp O/B. We also found the supplied self tacking jib a waste of time, unless head winds were to be 25 knots or greater, and replaced with a 150%, 35 sq m genoa along with the 45 sq m screecher (45 sq m main).
Go on many 40+ foot cats and you will find a full sized domestic automatic washing machine, yes easy to fit but.... etc etc
- its a weight, sail power focus - with compromises
Jonathan