Castlefinn is a 44.7 m / 146′8″ luxury motor yacht. She was built by Heesen in 2010.
With a beam of 9 m and a draft of 2.7 m, she has an aluminium hull and aluminium superstructure. This adds up to a gross tonnage of 458 tons.
She is powered by MTU engines of 3650 hp each giving her a maximum speed of 26 knots and a cruising speed of 20 knots. Castlefinn's maximum range is estimated at 3200 nautical miles.
The motor yacht can accommodate 12 guests in 5 cabins. The yacht was designed by Omega Architects.