Alumina ALX, an aluminum-hulled RIB (Rigid Inflatable Boat), resists abrasions from rocky shores, as well as coral or sandy beaches. Comes in 5 recreational models, ranging from 11 to 15 ft. long. Each size weighs about 25% less than similar fiberglass models, thereby reducing horsepower requirements and increasing agility. Fuel tank is integrated into bow of boat. Interior features pilot/co-pilot seat, center console, and storage locker with cushioned bow seat. For added safety, airtight chamber rests between deck and hull.