GE’s Marine Solutions has been selected to provide a LM2500+G4 gas turbine to power the Italian Navy’s new Pattugliatori Polivalenti d’Altura (PPA) multipurpose offshore patrol ship.
The company will also provide its shock-proof MV3000 drives and a GE-designed electrical network of motors, which will form part of the PPA’s hybrid electric propulsion system.
GE Marine Solutions president and CEO Tim Schweikert said: "Our contract includes an order for one LM2500+G4 as well as an option for six more LM2500+G4s.
"The ship’s flexible and unique hybrid propulsion plant will feature small gearbox mounted-motors for low speed operations, two propulsion diesels for mid-speed service and the gas turbine to reach more than 31k. We will also be responsible for the electrical system integration of the hybrid system."
Avio Aero, a GE Aviation business headquartered in Italy, will design the entire gas turbine package.
The LM2500+G4 is GE’s aeroderivative gas turbine and is the fourth generation of LM2500 technology that uses dry low emissions (DLE) technology to facilitate fuel flexibility and less water than singular annular combustor (SAC) technology.
GE’s MV3000 will accelerate the electric motor to rotate the propeller during low-speed operations. It is modelled on the G4 technology designed to generate up to 37MW power output.
The hybrid motor and drive also can act as the generator to power equipment on-board the vessel, such as weapons and sensors.
The 129m-long PPAs, which are being constructed by the Italian shipbuilder Fincantieri, can carry 90 crew members, with additional accommodations for up to 171 members.
The ship will be engaged for patrolling with sea rescue capacity and civil protection operations.
Last month, GE Marine announced its LM2500 gas turbine to power the Royal Australian Navy’s landing helicopter dock (LHD) ship HMAS Adelaide.
Image: GE Marine’s gas turbine to power the Italian Navy’s PPA OPVs. Photo: courtesy of GE Marine.