Flat bottom, lwl/Tc ratio?

Are there any major drawbacks from having a flat bottom (albeit slender lwl/beam of 8) at considerable draft please? By considerable, I mean a double ended vessel that displays a lwl/Tc of approximately 17. The Bwl/Tc would be 2 for minimum WSA and plenty of rocker. Sound confusing? Coinsider a long slender deepish draft Bolger to get a better picture. I like the idea in terms of construction but would like to know if there are major hydrodynamic no no's associated with this idea. Stability is fine as I'm hanging a large fin and bulb off her. If the corners should be rounded by how much please? Thanks for your time and trouble, Guillotine Racing.

[Tom Lathrop]

I'd suggest that you make lists of all the advantages and disadvantages of a flat bottom on a boat such as the one you contemplate.

If I did that, the flat bottom would not make it past the first draft.

[gonzo]

Flat bottom boats behave well only with low displacement. Even then, they pound quite a lot. Sailing sharpies when heeling, act as a vee hull. I don't see any advantages to a deep draft flat bottom boat.