VERIFIED ANSWERS
Multihull
A boat with multiple hulls, either a trimaran or a catamaran
Catamaran
A boat with two widely spaced hulls of equal size
Trimaran
A boat with three hulls, usually a main central flanked by amas or floats
Bridegedeck
the deck structure spanning the hulls of a catamaran
Bridgedeck clearance
the distance from the water's surface to the underside of the bridgedeck.
Freeboard
the height of the hull from the waterline to the deck edge
Deckhouse
the cabin on top o the bridgedeck, typically housing the saloon, nav station and
galley
Escape hatch
A hatch set into the underside of the bridgedeck or the side of a hull in case of
capsize
Crossbeam
A beam that connects the hulls of the catamaran
Ramp (or catwalk)
A solid walkway along the centerline between the bridgedeck and the forward
crossbeam