With more than 300 lean-burn, spark-ignited gas engines supplied for stationary power applications over the past 15 years, Rolls-Royce is making a determined bid to break into the marine propulsion market with its newly-bolstered series of Norwegian-developed, gas-fueled Bergen engines. The preparation of the K-G4 type for shipboard use, plus the unveiling of the altogether more potent B35:40V-G design, have been driven by mounting environmental legislation and by national commitments to air pollution reduction attendant to the Kyoto Protocol. While cognizant of the longer-term, international market scope, the business rationale in developing a marine offering of environmentally-friendly reciprocating prime movers…