While the Orbital system works and is still used in numerous applications, it is unnecessarily complex (requiring an air pump for example). The E-TEC system developed by Evinrude (an evolution of sorts of the FICHT system) is light years ahead. In addition to being used across the Evinrude outboard motor line, it is now also used in some high-performance Ski-Doo snowmobiles (with engines built by Rotax whose parent company Bombardier Recreational Products also owns Evinrude and Ski-Doo).
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