Glenn Ashmore wrote:

SNIP
What I want to know is how do you intend to raise the mast off that deck
beam and what will it do to the RM? You are increasing the lever arm of
the center of force and putting it up higher into stronger wind. That
in combination with reducing the angle of the stays will increase the
load on the stays. But maybe the wide base of a cat will minimize that.


The added accommodation will substantially increase the weight of the boat,
increasing the righting moment. Is the existing standing rigging up to the
increased loads?

Go back to the designer and ask the proper questions - there's lots of
aspects to this question besides rigging. What do you think you're
gonna get here - design genius - from people who put 14 tanks on their
boats? Multihulls have to be kept light.


On Sat, 04 Oct 2003 14:47:14 GMT, Jim Conlin
wrote:



Glenn Ashmore wrote:

SNIP
What I want to know is how do you intend to raise the mast off that deck
beam and what will it do to the RM? You are increasing the lever arm of
the center of force and putting it up higher into stronger wind. That
in combination with reducing the angle of the stays will increase the
load on the stays. But maybe the wide base of a cat will minimize that.


The added accommodation will substantially increase the weight of the boat,
increasing the righting moment. Is the existing standing rigging up to the
increased loads?

Freddy says:

Go back to the designer and ask the proper questions - there's lots of
aspects to this question besides rigging.

True. And the designer will say "Replace the rigging with longer stuff".



What do you think you're
gonna get here - design genius

That hurts.....

from people who put 14 tanks on their
boats?

So will that.

Multihulls have to be kept light.

I'm not sure that "have" is the right word there. "Should" would be better,
and even then some would disagree. It all depends on why you want a cat, and
what it was designed for.

Steve
Stephen C. Baker - Yacht Designer
http://members.aol.com/SailDesign/pr...cbweb/home.htm

I believe you will find that Evan has worked for some of the biggest
name yacht designers in the business so I expect he already has that
figured out. He is just using the group as a sounding board the same
way I often do.

freddy wrote:
Go back to the designer and ask the proper questions - there's lots of
aspects to this question besides rigging. What do you think you're
gonna get here - design genius - from people who put 14 tanks on their
boats? Multihulls have to be kept light.


On Sat, 04 Oct 2003 14:47:14 GMT, Jim Conlin
wrote:



Glenn Ashmore wrote:


SNIP
What I want to know is how do you intend to raise the mast off that deck
beam and what will it do to the RM? You are increasing the lever arm of
the center of force and putting it up higher into stronger wind. That
in combination with reducing the angle of the stays will increase the
load on the stays. But maybe the wide base of a cat will minimize that.


The added accommodation will substantially increase the weight of the boat,
increasing the righting moment. Is the existing standing rigging up to the
increased loads?





--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

On Sat, 04 Oct 2003 15:23:48 -0400, Glenn Ashmore
wrote:

I believe you will find that Evan has worked for some of the biggest
name yacht designers in the business so I expect he already has that
figured out. He is just using the group as a sounding board the same
way I often do.

freddy wrote:
Go back to the designer and ask the proper questions - there's lots of
aspects to this question besides rigging.....

The responses I have seen to Freddy's suggestion seem altogether
collected. Perhaps better to remember that this anonymous poster
also recommended arson as the winterizing recipe for a personal
water vehicle, in order to help you summon the replies he deserves.

Brian (certified genius) Whatcott

Brian says:

Perhaps better to remember that this anonymous poster
also recommended arson as the winterizing recipe for a personal
water vehicle, in order to help you summon the replies he deserves.

Can you think of a better recipe? ;-P

Brian (certified genius) Whatcott

Is that "I'm certified AS a genius", or "I'm a genius and Certified?..."

Steve

On Sat, 04 Oct 2003 14:47:14 GMT, Jim Conlin
wrote something
.......and in reply I say!:

The added accommodation will substantially increase the weight of the boat,
increasing the righting moment. Is the existing standing rigging up to the
increased loads?

If the guy intends to overcome the righting monent of a 40' cruising
catamaran while sailing, then the occasional broken stay will be a
minor excitement! G

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