Reverse Bows

[KP Texan]

The new DDX has a reverse bow design so I'm sure there is some merit to it.

The reason I'm posting is to ask about the Ulstein X-Bow design, and I was interested to find that the original designer had actually posted in this very thread! My company is looking into the construction of a 100+ meter Multi Purpose Support Vessel and I have been chosen to head up the engineering side of things. Among other designs, we are considering the Ulstein X-bow and I was curious about the performance of this design. Now that the design has been out for several years, I'm sure that some of you have heard things about these vessels and was looking for some input on its use for our application.

Thanks so much,

Wes

P.S. I'm absolutely blown away by the knowledge on this board and have discovered that I have much to learn!

[brian eiland]

Originally Posted by KP Texan

The new DDX has a reverse bow design so I'm sure there is some merit to it.

The reason I'm posting is to ask about the Ulstein X-Bow design, and I was interested to find that the original designer had actually posted in this very thread! My company is looking into the construction of a 100+ meter Multi Purpose Support Vessel and I have been chosen to head up the engineering side of things. Among other designs, we are considering the Ulstein X-bow and I was curious about the performance of this design. Now that the design has been out for several years, I'm sure that some of you have heard things about these vessels and was looking for some input on its use for our application.

Thanks so much,

Wes

P.S. I'm absolutely blown away by the knowledge on this board and have discovered that I have much to learn!

Hello Wes,
Try out the 'search button' in doing some research on a subject.

Also look at "axe bow' for your particular subject matter, and you'll find a few other subject threads.

This was an interesting addition to one of those subject threads:
http://www.hiswasymposium.com/pdf/2006/J.%20Gelling.pdf

[KP Texan]

I believe that the Axe Bow and the Ulstein X-Bow are different concepts (I remember reading about the Damen Axe Bow sometime back). After running a search, this thread seemed to have the most information on the X-Bow type vessels so this is where I posed my question. I'll attempt to search for more threads on the X-Bow.

Thanks so much,

Wes

[decatoire]

olivier decatoire

[bexman86]

to me this seems like a case where styling has moved to parts of the boat where it should not be. below the rubrail, styling should take a backseat to practicality!

and quicksail - in the two pictures you showed... the left one is a yacht with a reverse bow, however the right one is a supply vessel with an x-bow. while the shape of the x-bow (in profile) is similar to a simple reversed bow shape, the idea is different and the x-bow shows increases in hull efficiency as well as improved seakeeping.

[dskira]

Reverse bow is a nightmare for the anchor chain. You add a bulbe and you are in real huge trouble. (for a yacht of course)