She has a length of 13.12m with a 3.35m beam and 1.52m draft, Gross Tonnage is 21.00.
Gralian was the fifth of eight Medina Class 45' motor yachts built by Saunders-Roe in Cowes on the Isle of Wight between 1935 and 1939. Originally named Jeakelard she is of carvel construction with teak planks on oak frames.
She was originally a gift from Joyce Sherren to her husband Wing Commander PC Sherren, a First World War flying ace who was killed in the King's Cup Race in 1937.
During World War 2 she was requisitioned as a patrol vessel, serving on the East Coast and taking part in the D-Day landings in 1944. Her ship's bell is inscribed 'War Service Admiralty 1940-1946'.
She was renamed Gralian after the war and has cruised extensively in British and European waters.
In 1969 her two Chrysler petrol engines were replaced by Mercedes Benz OM314s.
Gralian is on the UK Historic Ships Register.