Winslow the blacksmith has been talking about a bell for Hello World on Facebook, but I kinda hate FB’s interface so I thought it would be easier to post some illustrations here and then make some comments.
It’s important that a bell be somewhere where it can’t brain your favorite sailor in big winds. Also, it’s important that I’m able to ring it when needed and silence it completely when not. If it could be set so that wave action makes it ring, this would be handy at night and in fog. With these criteria in mind, there are two places to mount a bell, A under the bridal shroud lines (an inverted v of aircraft cable that runs from the bow of each hull and connecting just below the sail and B at the end of the main sail boom. The boom swings around a lot but the very end doesn’t ever cross the trampoline – where the sailor is stationed.
An advantage of having it at B is that it’s more accessible to the sailor. Location A might be more stylish.
Any shape of bell can be mounted at A or B. Winslow has presented a bike bell sort of design that looks interesting. He choose this primarily to minimize a tapered edge like one might find at the bottom of a bell shaped bell. Traditional bell tapers would act like a meat cleaver given a little momentum.
Since locations A and B are not near the sailor, a traditional bell would be ok. It’s really up to Winslow. Since he is offering his energy and unique vision to the project, I want to give him space to express himself. Along with the criteria mentioned above, it should be no bigger than 6-12 inches in height and not much heavier than 10 lbs.