Gibdock completed a complex propulsion system job, following the recent docking of the 57-ton bollard pull capacity Boluda group harbour tug Siroco. The 2001-built Siroco, which operates in the port of Algeciras, arrived in Gibraltar in early June for a one month docking that included the complete removal and overhaul of the two Voith Schneider Propeller (VSP) units onboard. As soon as the vessel was drydocked, it was jet washed with high pressure water and hand-scraped to remove marine growth in preparation for the VSP overhaul. The next task was to crop four access plates and two upright supports from the protective structure to allow access for Gibdock engineers so they could remove the VSP blades.