The first phase of sea trials for MV Glen Sannox has been labelled as "overwhelmingly successful" by Ferguson Marine.

Known as ‘builder’s sea trials’, this phase of testing focused on establishing the capabilities of the vessel’s propulsion, automation, power generation and navigational systems.

Throughout the week, the vessel undertook a strict testing regime, overseen by Lloyds Register, to evaluate her performance and manoeuvring capabilities as well as speed, stability and efficiency.

Systems tested include the main engines, generators, thrusters, engines full astern/fast stops and communications.

Her trial journeys took her as far as the lower Clyde between Bute and Largs, and saw her achieve a maximum speed of 16.7 knots SOG (speed over ground), confirming she can operate at her planned speed of 14.5 knots.

Ardrossan and Saltcoats Herald: MV Glen Sannox undergoing 'builder's sea trials'MV Glen Sannox undergoing 'builder's sea trials' (Image: Ferguson Marine)

David Tydeman, chief executive at Ferguson Marine in Port Glasgow, said: “The results of this first phase of trials have been overwhelmingly positive, clearly demonstrating the advanced technology which MV Glen Sannox will bring to the CalMac fleet.

"Next steps for the vessel will be a return to the Ferguson Marine quayside, where she will undergo further outfitting and LNG system work before a trip to the dry dock in early April."

“After that will come what’s known as ‘owner’s sea trials’ with CMAL as representatives for Scottish Ministers on board.

"In April and May, she will also undergo endurance tests - when she will operate at higher speeds for longer periods of time.”

The ferry will serve the Ardrossan to Brodick route, and is expected to be delivered later this year.