Rotary Piston Engine

There are many applications where a high power-to-weight engine is either necessary or helpful. Uses for this type of engine range from handheld power equipment, to motorcycles and aircraft — uses multiply when fuel efficiency, compactness, and versatility are added. Currently, there are few viable options available to fulfill these applications, and those that are available are very inefficient when high power is no longer desired. When the application warrants it, the engine type of choice has been the turbine engine.