Page 34: of Marine Technology Magazine (May 2013)

The C-Stat from ASV offers a new capability in the dynamic positioning of equipment at sea for extended durations with- out the need of ships or seabed anchoring. The C-Stat uses a state-of-the-art autonomous controller and station keeping system integrated with the company?s C-Nav DGNSS system and a novel diesel-electric hybrid power system. The hull has been optimized for ocean performance and ease of launch and recovery. The C-Stat embodies many of the advantages found in ad- vanced unmanned systems, in that they can provide persistent, designed to collect and disseminate data at a fraction of the cost of manned operations. In the case of the C-Stat, it is de-signed for continuous operations, pending environment and mission, of between four and 30 days.The mobile buoy type design of the C-Stat is designed to provide excellent stability in heavy seas, with the dual propul- sion system for redundancy. Station keeping capability within less than 10m has been demonstrated, as well as deep ocean acoustic data transmission operations. Command and control via the ASView software system allows for both interactive pi- loting and preprogrammed activity during missions. Depend- ing on con guration, the C-Stat Series of ASVs can maintain steerage at 0.5 to 5 knots.The robust diesel-electric propulsion system is designed not only for redundancy and cost-ef cient operation, but to carry a varied and heavier payload, vastly expanding its scope of operation.Flexible payload options include echo sounders, acoustic modem/positioning, ADCPs, magnetometers, CDT, weather station, environmental sensors, passive acoustic monitoring and security related sensor systems, including video, camera and infrared systems.Hydrography - Unmanned Surface Vessels ASV C-Stat Mobile Buoy USV SystemC-Stat SpeciÞ cationsulHulHulHuHuull llllengngengngngegthththhthhthh.......................................................................................................................2.5mmmm mmmmmmmBrererereadth......................................................1.5 mmmmmPro Pro Pro PrPro ppulpppsiosiosiosiosnnnn.........................................DieDieDieDieDieselselseselsseleel-eleeecteccricricriccic DurDurDurDurDurDDururrrDDurrratiatiatiatiatitatiatittiononononononoono.....................................................4-44-444 4 444 4 3030300303003030dadadadadadddddadys,ys,yyysys,ys,ysysysycocococococontintitintintinttnuonuonuonuonuonuusususuusSurfac ccccccce PPePePePePePeeeeeeeeositioninnnnnnggggggggg................ggC-Nav DGNSSCommsmsmsmsmss.........................UHF surface comms m .................suitabtle for upptoooo7++ miless rangegeMay 201334 MTRMTR #4 (34-48).indd 34MTR #4 (34-48).indd 345/6/2013 10:15:08 AM5/6/2013 10:15:08 AM