Madsummer is a 55.5 m / 182′2″ luxury motor yacht. She was built by Feadship in 2005.
With a beam of 10 m and a draft of 3.15 m This adds up to a gross tonnage of 782 tons.
She is powered by Caterpillar engines of 1520 hp each giving her a maximum speed of 15.50 knots and a cruising speed of 12.50 knots. Madsummer's maximum range is estimated at 4800 nautical miles.
The motor yacht can accommodate 10 guests in 5 cabins with an interior design by Redman Whiteley Dixon and an exterior design by Feadship.