This notice seeks expressions of interest from economic operators experienced in building fibre reinforced plastic (or alternative appropriate material) commercial vessels to the UK Maritime and Coastguard Agency Workboat Code 1998 ("The Brown Code"), as amended, and capable of meeting the contracting entity's qualification requirements, as set out in this notice. This notice calls for tenders for the vessel build from those boatbuilders identified by the contracting entity as qualifying and invited to tender. The purpose of the contract is the build and delivery to Gravesend UK of a specialist hydrographic survey vessel to the contracting entity's specification. The hydrographic vessel will be approximately 16m length on the waterline, of twin-hull catamaran hull form, with Scania DI 13 or similar marine diesel engine and Kamewa (or similar) waterjet propulsion suited to a cruising speed of 20 knots and maximum speed 24 knots. The hull form and hydrodynamic characteristics should allow operation at up to 60 nautical miles from a safe haven in conditions of up to the upper end of sea state 4 with accelerations at the helm position, in such state, of no more than 0.8 g. The maximum water draught will be 1.2 m and maximum air draught (mast lowered) of 4.1 m. Further details will be given in the specification.