Istros is a 42.06 m / 138′0″ luxury motor yacht. She was built by De Vries Lentsch in 1954.
With a beam of 6.89 m and a draft of 2.83 m, she has a steel hull and steel superstructure. This adds up to a gross tonnage of 270 tons.
She is powered by Crossley engines giving her a maximum speed of 13.50 knots and a cruising speed of 11.50 knots. Istros's maximum range is estimated at 3400 nautical miles.
The motor yacht can accommodate 9 guests in 5 cabins with an interior design by H2 Yacht Design and an exterior design by G. De Vries Lentsch Jr..