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Critical Communication used onboard historic vessel

Old meets New: Critical Communication from Zenitel Marine is used onboard historic vessel referred to as “one of the largest full-rigged wooden sailing ships in the world”.

“Götheborg" ran aground at the entrance to Göteborg on 12 September 1745. The ship was fully laden with goods and had almost reached dock after her third voyage to China. In December 1984, divers descended to the sea bed and a marine archaeological excavation lasting ‘till 1992 opened the door to a dream of rebuilding the ship. Construction began in 1995 and was finalised in 2004 with a Zenitel CTB-100 Command Talk-Back (CTB)/Public Address system onboard ready for the formal naming ceremony in September that year. The long awaited first sea trial took place on 22 May 2005 fully demonstrating the capabilities of the Zenitel system which is maintained by the Zenitel office to this day.

Above the waterline, the “Götheborg" is a historical sailing ship but from within, she conceals modern machinery and the most advanced technical equipment available. Götheborg uses a Zenitel Marine CTB-100 Command Talk Back System for internal communications between critical and strategic positions onboard, together with a Zenitel Public Address system to distribute orders and commands to the sailors. Zenitel alarms provide a means of evacuation in critical situations.

As one of the largest fully-rigged wooden sailing ships in the world, and in order to meet international safety requirements, Götheborg set extremely high supplier and specification demands. Zenitel proved to be the only supplier that could meet these demands, for example, equipment had to be extremely easy to use as the ship is frequented by inexperienced youngsters and can hold as many as fifty trainee crew at any one time. Here, Zenitel’s CTB system employs extension buttons with memory light and buzzer to indicate incoming calls, panels have foil protected push buttons, there’s an All Call / Group Call facility and both handheld and gooseneck microphones can be used. A key factor overall, was Zenitel Marine’s well established network of own service engineers and service contractors around the world, as the ship was built to make around-the-world voyages.

Zenitel’s CTB loud hailing Talk-Back system is based on one central unit, up to four main panels, one 100V power amplifier and a wide range of substations. Onboard Götheborg, the system is powered by 24VDC from the generators onboard, with an additional battery backup supply for emergency situations. The diesel engines power the electrical generators which are chiefly used for manoeuvrability when in port or when the wind fails. The whole system is tested according to EN 60945 and type approved by RMRS, CCS and DNV. 

The Götheborg project has attracted great attention in China. As a symbol for trade, cultural exchange and friendship between Sweden and China, the project is part sponsored by the Chinese government and by companies like Zenitel. Zenitel’s relationship with the ship continues with maintenance of the delivered equipment and parts at a fair price as further contribution to the ship.