Upgrade for seismic vessel

The French companies Compagnie Générale de Géophysique (CGG) and Louis Dreyfus Armateurs (LDA) have decided to carry out a major upgrade of their seismic research vessel CGG Mistral. The conversion includes upgrading to 10 streamers and adding two new engine rooms with complete shaft lines and propellers in sponsons added to the ship?s sides. The vessel?s beam will be increased from 15.6m to 22.9m. MWB Motorenwerke Bremerhaven AG in Germany has been appointed to carry out the conversion, and Vik-Sandvik, the Norwegian naval architect is to provide detailed production engineering.