Larissa - OCV / IMR
 
CLASS: DnV GL, 1A1, BWM-T, CLEAN (DESIGN), COMF-V(3), DK(+),DYNPOS AUTR , E0, HELDK SH, HL(2.8), ICE-C, NAUT OSV(A), SF
CALL SIGN: LAKX7
BUILT: 2011 – ZHEJIANG SHIPBUILDING Co. LTD
DESIGN: ULSTEIN SX 131
IMO: 9521033
FULL SPEED: 15.5 KNOTS
Larissa
The vessel is designed with the well-known Ulstein X-Bow, and has the design ID SX 131. The vessel is a state of the art Inspection, Maintenance and Repair vessel, built for World Wide Operation.
A Diesel Electric power plant feeds 2 x Tunnel Thrusters and 1 x retractable thruster in the Bow, + 2 x Azimuth Main Propellers, ensures excellent station keeping in DP2, and an ERN No. of 99.99.97. This same configuration in addition with the design, gives a low and efficient fuel consume both in DP Operations and in transit.
1 x AHC Offshore Crane, 150T-12M/10T-25M/2500m Wire, is installed on SB side. Dismountable sections in rail, allows for safe logistic over both sides. An active ant-heeling system is installed to ensure safe and stabile crane operations.
The crane has also the possibility to operate through a large moonpool (7.2 x 7.2m). The moonpool is arranged with a 3 part hatch, and is also arranged with interface and necessary enforcements for a Module Handling Tower.
Hangar with integrated AHC LARS for deployment of 2 x Work Class ROV’s, both sides, is arranged. Deployment load beyond 20 Te @ 4000m. 2 split steel and roller gate ROV doors on each side and 1 x roller gate aft, installed.
Work Deck area is 935m2, where 160m2 of these are sheltered. Longitudal and transvers T-bars are installed for sea-fastening. Deck strength is 10T/m2
Vessel has a Helicopter-Deck for Sikorsky S-92 installed, which allows for easier logistics of crew and spares
Accommodation is arranged for 69 persons. 50 beds available for Client. In addition, Large Dayrooms, Conference rooms and offices, Gymnasium, ROV Control Room, Online and Offline rooms are arranged. Class notation COMF-V (3) ensures low noise level in accommodation.
For safe DP2 Operations, the vessel is equipped with Kongsberg K-POS DPII System with the Position Reference Systems; 1 x HIPAP 500, 1 x DPS 700 DGPS, 1 x Radius 1000 and 1 x Seapath 200