Hull types

[Roz]

Could someone plese tell me what type of Hull a "V Poliedric" is? We are looking for a boat to go fishing in + a bit of nice cabin space and the Sessa Dorado is a contender but is it a semi displacement, deep V or what and will it be OK in choppy weather. Any opinions appreciated.

 

[Whitelighter]

er, no idea what a 'V Poliedric' is, unless it is foreign for 'Modified V'.

Anyhoo, if you are fishing you ideally want something which is very stable at anchor. So a wide flat bottomed boat is best. Except that you probably want to be able to fish in all weather and not slam into the sea over every wave, so maybe a deep V?

Your best bet is probably a Modified V hull - a compromise but a good all rounder. most modern planing boats will have this configuration to differing degrees. You are probably looking at a deadrise of around 20 degrees, which will give you the ability to pucnch some rough stuff while providing a stable ish platform for fishing

 

[Lakesailor]

It seems to be the Spanish for "polyhedric"
That it appears is a geometry for defining enclosed shapes.
I found this bit in a marine paper which came up as a search on polyhedric.
[ QUOTE ]
The practical use of automated computational fluid dynamics (CFD)-based design tools in the ship-building industry requires powerful flow solvers which are able to take into account realistic geometries as well as complex physical phenomena, such as turbulence. A shape optimization tool is developed in this framework. A derivative-free optimizer, yielding both flexibility and robustness, is preferred to the classical gradient-based method, which is more difficult to implement and is still limited to only moderately complex problems. The flow solver included in the design procedure solves the incompressible Reynolds-averaged Navier-Stokes equations on unstructured grids using a finite-volume formulation involving several near-wall low-Reynolds-number turbulence models. The design tool is used to optimize the stern of a modern hull shape at model and full scale, with different purposes being considered. More precisely, the drag reduction and the homogenization of the flow in the wake are expected by controlling the longitudinal vortex generated. Our interest is particularly focused on the influence of turbulence modeling in the design process. The effects of a two-equation model based on the eddy-viscosity assumption and a second-order closure relying on the Reynolds stress transport equations are compared.

[/ QUOTE ]

So that should all be clear now.

 

[KevB]

It's a planing hull. I have an Oyster 35 and it's says mine has a "V Poliedric" hull which I assume is a modified V. And as the Dorado does 30 knots + deffinitely planing.

 

[PowerYachtBlog]

Poliedric V stands for modified deep V

that means the forward has a stepper angle usually about 40 degrees and aft goes flatter to about 18 degrees Vee
this is the normal hull for most cruisers

 

[Whitelighter]

[ QUOTE ]
er, no idea what a 'V Poliedric' is, unless it is foreign for 'Modified V'.

[/ QUOTE ]

Not a bad guess then...

 

[Kawasaki]

V Poliedric.
Is actually a combination of Italian and Celt and Norse.
"Edric" obviously Norse in origin.
"V poli" again obvious in it's Romanic beginnings.
"Polied" a derivitive of the Celt translation of "Poorlyhead" or "Poorly Head" in English.
A Port in Anglesey is also an indication of two languages coming together and being misconscrewed--- Example "Holyhead".
From the local dialect, when inibriated "I,ve got to Holdmyhead"
Yer see, this is how Languages are born and developed.