Re: [Amel Yacht Owners] First Impressions: Firefly Batteries.
Danny,toggle quoted messageShow quoted text
This is an interesting area of discussion that can affect the way that we use our boats. I understand the simplistic explanation that you provided but I think that there is quite a bit more going on and suspect that the actual data from testing might seem a little confusing when those tests are done in waves of varying period and amplitude.
I know that on an older traditional design such as Olin’s Dorade that spreading out the weight can work out well. Dorade was in fact so comfortable (and fast, the restored Dorade is in fact still doing very well racing) that trips across the Atlantic were chosen intentionally to have the wind forward of the beam because of this fact..and because the boat rolled downwind terribly. (grin) I think that the reason spreading the weight worked for that type of boat (under most conditions) is because the bow was very fine with little buoyancy as compared to more modern wider boats and with the pitch heavily dampened by both a heavy mast and heavy ends that the bow did not lift enough to initiate hobby horsing. This makes for a very wet boat of course and I suspect that if the wave period happened to be close to the natural pitching moment of the boat that the weight spreading was probably not a good thing, but this is just a guess. The Amel hull is so different that perhaps none of this will translate over but it would be nice to know for planning purposes. Perhaps when I get my boat back to Florida waters I can attempt some testing but perhaps some other Amel owners have already done some experimentation?
I completely agree with you about trying to keep the heavy stuff as low as possible. My heaviest items will also reside in the bilge.
SV Sueno, Maramu #220