All, Every once in a while I see reference to Darts and Dart shanks. What in the Sam Hill are they and what's their purpose? I see in this link http://www.deepblueyachtsupply.com/search.aspx?q=DART that they're referred to as Swordfish darts. Surely they really aren't darts made for harpooning swordfish are they? Please tell me that in this day and age people don't deliberately go out to kill Swordfish with harpoons for the (???)fun(???) of it. Are they something used in other regions onboard a sailboat for some function that I can't even conceive of? Does my Ericson 31 need one badly? Can anyone set me straight as to what they are really used for? Thanks in advance, Glyn