United Spirit is a 34m high speed motor yacht, originally built of riveted aluminium construction in the late 1930s with the hull and superstructure being completely modified in Sweden in the 1990s.

The new owner had already fitted large Deutz engines and waterjets and wanted the interior and domestic plumbing and piping to be fitted out. SYS carried out all this work to a Tony Castro design in limed oak. The result has been a remarkably successful new life for the yacht and she has been extensively used over the last ten years.