Yes. Centre of thrust of the sail is higher than the centre of longitudinal resistance and in opposite direction, causing pitching moment which must be balanced by increased buoyancy and\or lift forward and decreased buoyancy and/or lift aft . Heeling moment is the transverse equivalent.
Cheers,
Peter
From: harryproa@yahoogroups.com.au [mailto:harryproa@yahoogroups.com.au]
Sent: 30 May 2018 15:07
To: harryproa@yahoogroups.com.au
Subject: Re: [harryproa] Length to displacement ratio and Bucketlist
| Just as a guess, it looks like it might. I think Rob said he could see something. Or that the bows were not pushing down on Bucket.A very light and long boat like bucket may not go bows down as much anyway.
Why do the bows go down? Is it because the center of thrust of the sail is higher than the bows, and that causes a bow down rotation?
Do we put a slight upward pointing bottom on the crush bows?
Posted by: "Peter Southwood" <peter.southwood@telkomsa.net>
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