Upwind, the wing could be smaller as it is more efficient. If the boat was fast enough to always sail with the apparent wind forward of the beam (moths, skiffs, AC boats, maybe Bucket List, etc), this is the end of the story. But normal boats need to sail downwind, and there is no substitute for area when you do so. You end up with a wing pretty much the same size as the sail area, for similar performance.
On Mon, Nov 2, 2015 at 4:34 AM, robriley@rocketmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
what would be the size difference between a softsail and a wingsail such as Greenbirds?
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Posted by: Rob Denney <harryproa@gmail.com>
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