Originally Posted by kevinmac
I was VERY suprised to find that the Lagoon seemed to have vastly more living space than the Manta. The Manta had a lot of other good features, I am not running down the boat, BUT, I had assumed interior volume would be roughly in proportion to length (given that beam seems to be about 2 to 1 as a design principle). Today I found out that assumption is wrong.
We own a Manta 40 and I have spent 2 weeks on a Lagoon 380
as a charter
. Like previously mentioned, the Manta is really a 38' boat. It has narrower hull
beam than the L380 and this translates into less space (cubic volume). The hulls are where most space differences between similar length and beam catamarans occur. One thing that also makes the L380 seem large is the whole back (almost) of the saloon
is open to the cockpit
One always runs into the danger
of being a cheerleader when talking about one's own boat, but I find the Manta to have more LIVING space than the L380. "Living" being the operative word. Even though the volume may be smaller on the Manta (I actually don't know), I think it is laid out better for living. A few differences relating to the Manta: the galley
is larger and better designed for live-aboard cooking
and dish/utensil storage
, the large built-in pantry is more convenient and better organized for food storage
(if you include the shelving built along the port hull
, 1/3 of the whole hull is a pantry), the separate reefer and freezer
are larger and more functional than the dorm fridge in the L380, the full "bathroom" with separate shower
is nice when living aboard
(although the owner's version of the L380 has a similar setup), the saloon
table is not meant for 12 and doesn't take up the full bridgedeck, there is much more storage in the form of hanging lockers, drawers and cabinets not to mention an actual wet locker immediate to the companionway
, the machinery access (AC, reefer, batteries, inverter
, etc) is more convenient, and the electrical system
isn't French (sorry, cheap
That probably does sound like cheerleading, but the L380 was on our short list, so we actually made the comparison and decision between the two. One way we find the Manta "larger" than the L380 is that we aren't in each other's way as often. Examples of what I mean by this is that one person isn't moved off the settee so another can access food
storage, or we aren't bumping into each other trying to pass around a too-large fixed ottoman/table setup, or one doesn't have to clear other space to prepare dinner. We actually came to the conclusion that the L380 was "smaller".
So living space is more than absolute volume.
As for your headroom needs, older Mantas only have 6'1" in the saloon and 6'4" in the hulls. New Mantas have raised the cabintop to 6'4" in the saloon. The window slope occurs over counter space and behind settees, so that really shouldn't be an issue unless you like to stand up in your freezer
. But transitions like going down into the hulls and traversing doorways cut out of bulkheads will still challenge you. These limitations are going to be present on most cats in the 38-42' range, so you may end up with a very short list! But I agree with you that I wouldn't want to live on a catamaran
without full headroom. This is less of an issue on a monohull
where most everywhere can be reach within a couple of steps and then you are sitting down. But on a cat, you need to walk across large spaces and traverse three separate parts
of the boat. Bending over through all that is not worth it.
There isn't too many ways to skin the cat on the headroom thing. Be careful about designs that sacrifice the bridgedeck clearance or make protrusions under the bridgedeck to gain headroom - the dig a hole approach to headroom. The alternate is to raise the roof, which can play havoc with visibility and windage. I wouldn't be too concerned about windage but the visibility part is important. Interestingly, on my boat you wouldn't be able to stand up in the saloon like you could on the L380, but on the L380 you wouldn't be able to sit upright on the helmseat without sticking your head
through the bimini
like you could on my boat. The reason for this is the higher roof of the L380 saloon necessitates a higher helmseat which is closer to the bimini
which is limited in height by the boom.
Good luck with your cat hunting.