Written by
Marine Log Employees
PSA Wayra [Photo: PSA Peru]
Ordered final 12 months at Hong Kong’s Cheoy Lee Shipyards (see earlier story), the Robert Allan Ltd RAmparts 2400 design hybrid-drive tug PSA Wayra will quickly enter service as the primary tug with a hybrid drive system on South America’s west coast. Constructed for PSA Marine Peru, an entirely owned subsidiary of Singapore’s PSA Marine (Pte) Ltd, the ASD tug is propelled by Schottel RudderPropellers and options Schottel’s patented Sydrive-M mechanical hybrid answer. Much less advanced than different hybrid know-how, it reduces each the vessel’s upkeep prices and its gas consumption. It has a very environment friendly and sustainable impression on the operation profile of harbor tugs that usually alternate between towing and transit operations.
The primary propulsion of the ASD hybrid-drive tug consists of two diesel-driven sort SRP 460 SchotteL RudderPropellers (2,240 kW every) that includes fixed-pitch propellers with a diameter of two.6 meters. With this thruster configuration, the 24.4 x 11.25 meter tug delivers greater than 70 tonnes of bollard pull.
As well as, the rudder propellers function the licensed Schottel LeaCon sealing system which offers secure and dependable safety towards contamination of seawater by working supplies.
Sydrive-M connects a vessel’s port and starboard mounted azimuth thrusters to permit each thrusters to be pushed by solely one of many fundamental engines. This reduces fundamental engine working hours, reducing upkeep prices, gas consumption and emissions.
The system requires no extra digital parts and has three fundamental working modes: mild operation or free crusing mode, full thrust operation mode and FiFi mode.
