Perhaps not much noisier, but I'm pretty sure one noise component is the water flowing over the surface, and if the wetted area increases, that noise component should increase as well. Seams and ports would also produce some noise due to flow disturbance, I would imagine.
Perhaps I'm wrong here, but I tend to think of drag-inducing factors as noise inducing as well. But I'm really mostly into aviation, not subs...
|