Page 22: of Marine Technology Magazine (September 2013)

In the Yard Incat Crowther has been contracted to design a trio of 42.5m Monohull Dive Support Vessels. The design is a new concept borne of the latest ideas from designer, builder and operator. The design has been developed to be a dedicated DP-2 capable Dive Support Vessel, featuring fully integrated ROV launch and recovery, dive compres- sors and decompression chamber. The vessels, currently under construction at SeaSafe Barcos Manufaturados, in Angra do Reis, Brazil, will be delivered to Sistac. The Þ rst of the three vessels, to be named Sistac Vit?ria, is due to be delivered in the Þ rst quarter of 2014. The aft deck will feature a large work- ing deck, which will house the ROV crane and reel, a pair of dive platforms and two deck cranes. Inside the main deck house are functional areas such as toilets and showers, dive shop (housing compressors and decompression cham-ber) and ROV shop. Forward of these spaces are an ofÞ ce, TV room, meeting room, mess areas and two single-berth cabins for senior per- sonnel and a designated ofÞ cer cabin. A spacious wheelhouse is located up-stairs, with forward and aft facing vessel control stations, ROV and dive control workstations. Overhead windows are Þ tted both fore and aft for high-angle visibility. Four Scania D13 main engines, each producing 410kW, will power the ves- sels. The vessels will have a service speed of 13 knots and a top speed of 15 knots. The DP-2 capability ensures the vessel can hold station in the event of a failure in any single component of the system, enhancing both safety and reli-ability. Incat Crowther Designs DSV Trio Photo: Incat Crowther SpeciÞ cations ? 42.5m DSV Lengt, o.a. ...........................42.5m Lengt, w.l. ............................38.5m Beam, o.a. ........................... 9.3m Draft (hull) ......................... 1.85m Draft (prop or max) ............ 1.85m Depth ................................. 4.25m Construction .................Aluminum Fuel Oil .................. 112,000 liters Fresh Water ............ 20,000 liters Sullage ....................... 3,000 liters Personnel .................................. 36 Speed (Service) ............. 13 knots Speed (Max) .................. 15 knots Main Engines ....... 4 x Scania D13 Power ..... 4 x 410kW @ 1800rpm Propulsion .... Hamilton Water Jets Generators ..........4 x Scania Dl13 Flag .......................................Brazil Class ......................................RINA 22 MTRSeptember 2013MTR #7 (18-33).indd 22MTR #7 (18-33).indd 228/22/2013 10:09:56 AM8/22/2013 10:09:56 AM