Calculating hull drag

[miked12]

Lateley I have been experimenting with different radical hull designs, I was wondering if there was any way that I could calculate the drag of each hull without actually constructing them?

[tspeer]

Are these displacement hulls or planing hulls? Wide or slender (say, length/beam > 8)?

[Stephen Ditmore]

You might want to check out Michlet
see http://boatdesign.net/forums/showthr...p?threadid=280
(note: it's more accurate for slender hulls)

Also see discussion at http://boatdesign.net/forums/showthr...?threadid=1302

[miked12]

Sorry for being so vague, the hull I was considering was an extremley slender 12 meter type yacht. This is a displacement hull with greater than an 8 foot beam. Are there any resorces that I could use to calculte the drag of this hull.

[Stephen Ditmore]

I think my links are still relevant, in spite of my caveat. If you're willing to spend more $$$ you might want to investigate Shipflow or Splash.

Shipflow link: www.flowtech.se