Not too long ago, the gas turbine for commercial maritime use was relegated as an exotic luxury by many, as the use was centered mainly on high performance naval vessel applications. But a metamorphosis of sorts has occurred in recent years, and a the market potential for gas turbine usage on commercial boats and ships is rapidly expanding. Specifically, the evolution of very large, very fast cargo, automotive and passenger ferries has resulted in the increased specification of gas turbine propulsion packages. Also, the increased focus on the environment and tighter scrutiny on exhaust emissions has led to new orders for gas turbines for new users, such as the cruise ship market.