Delfin
Grand Vizier
- Joined
- Jan 20, 2010
- Messages
- 3,850
I’m wondering why the bow is so huge.
My thinking is that there’s so much weight plunging into a wave with fwd motion that the bow needs to be high and full to rise to the occasion. Pun intended. The extreme flare seems a final designers trick to keep the bow from mak’in much like a submarine.
So the bow flare and the percentage of the hull it involves is unique. But the most unique feature of their design looks to be just the very high displacement or weight. There’s no hollow wineglass section like on my Willard. There’s no typical keel that plays a big part in directional stability. However they do have a V bottom of sorts. The Romsdal seems to rely mostly on their cross sectional area to control or limit sideways movement of the craft.
I don’t see any stabilizers. Do these boats do without?
North sea boats have been designed with flared bows in order to deal with some of the nastiest weather around for a few centuries. My understanding is that the design of the Romsdal's was essentially the same design that the yard had been building since around 1860 as herring fishers that went out 12 months out of the year.
Just curious, but what do you mean by a "typical keel"? Didn't know there was such a thing. Also my impression is that 7 1/2' of draft does a reasonable job of limiting "sideways movement."
https://www.google.com/search?q=mal...hXJrVQKHfjOCk4Q9QEISzAI#imgrc=EbfzH_xIviGhwM: