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Forum: Monohull Sailboats

22-09-2017, 07:33

Replies: 90

Advantages of a taller rig/30% larger sail area?

Views: 11,847

Posted By atmartin

Re: Advantages of a taller rig/30% larger sail area?

Increasing the mass moment of inertia should increase resistance to rolling. Your example of sail vs power boat of same displacement is probably true as most sailboats will have more weight further...

Forum: Monohull Sailboats

21-09-2017, 07:29

Replies: 90

Advantages of a taller rig/30% larger sail area?

Views: 11,847

Posted By atmartin

Re: Advantages of a taller rig/30% larger sail area?

I'd be interested in a discussion of roll period/damping/etc as it relates to comfort at anchor. Whether it's wake or surge, even relatively small waves can initiate wicked rolling on some boats....

Forum: Monohull Sailboats

19-09-2017, 20:58

Replies: 90

Advantages of a taller rig/30% larger sail area?

Views: 11,847

Posted By atmartin

Re: Advantages of a taller rig/30% larger sail area?

Adding weight down low will certainly increase the area under the positive stability curve, but it doesn't necessarily improve motion or sea-kindliness:

This doesn't just apply to 'modern'...

Forum: Monohull Sailboats

18-09-2017, 07:13

Replies: 90

Advantages of a taller rig/30% larger sail area?

Views: 11,847

Posted By atmartin

Re: Advantages of a taller rig/30% larger sail area?

Not to further derail things, but this is a good point. When I get into conversations with aspiring cruisers, they expect me to sing the praises of full-keels because I own one. They have their...

Forum: Monohull Sailboats

17-09-2017, 19:11

Replies: 90

Advantages of a taller rig/30% larger sail area?

Views: 11,847

Posted By atmartin

Re: Advantages of a taller rig/30% larger sail area?

My thoughts exactly. Our boat has a SA/D of 14. We've got partial battens on main and full battens on mizzen to add roach, a big code zero, a stupid big genoa and would like to add a mizzen mule. It...

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