Reply To: Slamming

my broad experience in naval buiding , i.e. a quick look at Wikipedia 🙂 gave that result :
“”Bulbous bows have been found to be most effective under the following conditions:

when used on hulls with waterline lengths of more than about 15 m (50 ft)
when used on long, narrow hulls
when used at speeds close to the vessel's maximum speed
These points make them a standard feature for cargo ships, naval vessels and passenger ships, all of which are large, narrow and usually operate within a small range of speeds close to their top speed. On the other hand, they are virtually unknown in recreational craft like yachts, especially sailing vessels, which operate in a wide range of speeds and even heel over.””
I had read too in a french article than the forces applied on bulb on a slaming boat would be so big than it would be difficult to reinforce the bow without putting an heavy weight in the front (bow).