Pratt & Whitney Marine Systems has entered into a contract with Norwegian shipyard Umoe Mandal to supply gas turbine propulsion systems for six Royal Norwegian Navy ‘Skjold’ Class Fast Patrol Boats.
This contract, valued at $40 million over the next four years, is said to represent a strategic return to the marine market for Pratt & Whitney.
According to a statement, each gas turbine propulsion system will feature two ST18M marine gas turbines and two ST40M marine gas turbines. The ST18M and ST40M are free turbine turboshaft engines derived from Pratt & Whitney Canada’s PW100 and PW150A aviation turboprop powerplants respectively.
The Norwegian Navy is said to have based its decision after performing an evaluation of operational, technical and maintenance requirements.
Specifically, the Navy performed a study of competing turbine configurations and found Pratt & Whitney’s COGAG (combined gas turbine and gas turbine) better suited for Skjold boats than CODOG (combined diesel or gas turbine) offered by P&W’s competitors.