Arianna is a 164-foot (50 m) full-displacement luxury megayacht designed and built by Delta Marine Group. Delivered in June 2012, Arianna has a 34-foot (10 m) beam, 7,500 square feet (700 m2) of living space, and more than 822 gross tonnage (ITC), which makes Arianna the world’s largest volume 50 m yacht (most yachts of this LOA are maxed at 500 tons). Arianna is equipped with twin Caterpillar 3512B engines that give her a cruising speed of 14.5 knots and a maximum speed of 16 knots. She carries 21,900 US gallons (83,000 l; 18,200 imp gal) of fuel and has a range of over 5,000 nautical miles (9,300 km; 5,800 mi).