Relentless is a 43.28 m / 142′0″ luxury motor yacht. She was built by Trinity Yachts in 2001.
With a beam of 8.38 m and a draft of 2 m, she has an aluminium hull and aluminium superstructure. This adds up to a gross tonnage of 389 tons.
She is powered by MTU engines of 1800 hp each giving her a maximum speed of 18 knots and a cruising speed of 16 knots. Relentless's maximum range is estimated at 5000 nautical miles.
The motor yacht can accommodate 10 guests in 5 cabins with an interior design by Dee Robinson and an exterior design by Trinity Yachts.