S. B .ICTUS, A replica Edwardian Steam launch. Although parts of the boat are over 75 years old, the main work was carried out in 1989 by Bay Class Yachts at their yard in Conyer, Kent. Formerly the yard was owned by Whites who launched many Thames barges. The hull is steel, and the superstructure varnished teak. The name refers to the gentle beat in poetry and plainsong music. The steam installation was carried out by the late Alex Ritchie working from the original drawings of the Lifu Steam Co of Switzerland.