Proton: The boat is a Corsair F-27 trimaran. I'm a physicist. A proton is made up of 3 quarks: Two "up" quarks and a "down" quark. You should ask people for the names of their dinghies if they have them. I like to see interesting dinghy-name/boat-name combinations. For example, mine is called"electron". Toby Castellarin has a boat named"Rum and Tonic"and his dinghy is named "Twist of Lime". One could go on for a long time.