Italian "dolce vita"... With a twist!

[Deleted User YDKXO]

Well I have 3 thoughts about this boat. First, will my wife look like that in the mornings if I buy an Overblue? Second, having experienced some of the sea conditions along that coast myself, that boat is going to fall over as soon as it gets out of the bay and those wives in the video are going to file for a divorce. Third, the Portofino harbourmaster is never going to allow such an ugly monstrosity within a million miles of his harbour

 

[BruceK]

mmm. We're thinking along the same lines then. Although it has to be said the PC does have a rather unusual longitudinal bow leading to a milder break away at the transom than a full P (see I learnt something ) hull and she does have this dagging feeling up to about 25 knots before she finally starts to really skip along the surface. She cuts through waves but rolls like a drunk quarter to beam on. Just curious really.

 

[BruceK]

Well I have 3 thoughts about this boat. First, will my wife look like that in the mornings if I buy an Overblue? Second, having experienced some of the sea conditions along that coast myself, that boat is going to fall over as soon as it gets out of the bay and those wives in the video are going to file for a divorce. Third, the Portofino harbourmaster is never going to allow such an ugly monstrosity within a million miles of his harbour

I take it you're under the assumption your wife never reads the forum

 

[PowerYachtBlog]

The semi displacement hull is medium to deep vee with a dead rise of approximately 16 degrees at the transom, honing up to 20 degrees amidships. The chine is toed-in with a knuckle in the topside to keep spray at bay.

This is totally a bad interpretation in my book.
Let me start explaining the simple one.

Mono(hedron) planning hulls have three variants deep Vee (20 deg or more closing at transom) medium Vee (10-19 deg at transom) and flat Vee (10 deg or less at the transom).


I think what differs in a semi planning - displacement hull usually would be a the small center keel and a closing Vee of 10 degrees or less. It can be a bit more also.
Also usually the center part of the Vee is more flat, chines are flatter at the back, and the bow turns much deeper in the forward third part of the hull.

There is some planning derivations of a similar design with a small keel and then going very flat.
If you have an eye you can understand if it is made for planning or not usually by what happens in the hull.
A case a point would be the hulls of the Uniesse 42/48 or 57 Sport series all are planning hulls.
Very good hulls and designed by American Fred Hudson who worked at some point with Walt Walters and Jim Wyne of Magnum Marine fame.

 

[BruceK]

Thanks. I figured it was a typo, but a bit of a clanger.

 

[MapisM]

I think what differs in a semi planning - displacement hull usually would be a the small center keel and a closing Vee of 10 degrees or less.

True in general, but as you know Camuffo built some pure P hulls (and pretty fast, too!) with a small center keel.
Sure, it also had to see with the type of construction, but not only.
I discussed that once with Marco, during my Adriatic years, and he told me that it's a design choice for him, particularly aimed at improving stability while steering at speed.
As I said, only the builders fantasy (together with the sky!) is the limit...

 

[DougH]

I take it you're under the assumption your wife never reads the forum

Deleted User cannot come to the forum at the moment due to his predicament of holding his n*ts whilst trying to hold a large steak over his swollen eyes and trying to say though his badly bruised mouth 'please give me back my wallet and credit cards dearest'

Only response, front door slams and Mike's credit cards take a severe bashing.

 

[Deleted User YDKXO]

Only response, front door slams and Mike's credit cards take a severe bashing.

No, no, my missus is an enlightened SWMBO. As far as other women are concerned, she has told me that I can look at the menu but I always have to eat at home

 

[PowerYachtBlog]

True in general, but as you know Camuffo built some pure P hulls (and pretty fast, too!) with a small center keel.
Sure, it also had to see with the type of construction, but not only.
I discussed that once with Marco, during my Adriatic years, and he told me that it's a design choice for him, particularly aimed at improving stability while steering at speed.
As I said, only the builders fantasy (together with the sky!) is the limit...

Ahh that Camuffo keel, astute observation Watson. An other purpose of the keel 1) to lower CoG (also used for this purpose on Uniesse) 2) increase strength on Camuffo I think they had quite an ammount of thickness in that part of the hull 3) also direction straight line ability, and 4) less lateral movement during turning. If you see Camuffo they turn quite straight.

 

[sorabain]

If they'd made it a catamaran then with a certain paint style I might have appealed to Sci Fi fans

http://www.ex-astris-scientia.org/scans/factfiles/type6-views.jpg

Edit: oh wait, it IS a catamaran, definitely one for star trek fans.