Aframax tanker design launched

Developed by Wärtsilä Ship Design, the double-hull, single-screw crude oil tanker features a CFD- (computational fluid dynamics) optimised hull to provide less resistance with higher propulsion efficiency. According to Wärtsilä, the CFD optimisation of the hull form has carefully considered the flow lines and pressure distribution along the hull, while the cylindrical bow accommodates a range of operational draughts even in rough weather conditions. The design is 253.20m long and 44m wide with a maximum draught of 15.2m. Overall, 134,250m3 of cargo can be transported in twelve tanks. An electronically controlled two-stroke Wärtsilä X62 common-rail main engine with a cylinder bore of 620mm, an extra long stroke and low rpm will be installed. The vessel also has a minimised physical width to allow a slimmer aft body design, which further benefits the propulsion efficiency. According to Wärtsilä, compared with currently available main engine options, the X62 can achieve fuel savings of 7% on the specific vessel design. Furthermore, the same vessel speed can be reached using one less cylinder. For emissions compliance, an integrated exhaust gas scrubber has been placed on the funnel.