tommy11, I'm not sure what "water engine" you're talking about. However, it has nothing to do with Cyclone technology. The Cyclone engines are modern steam engines. Steam engines gave way to internal combustion because the old steam technology could not compete with respect to thermal efficiency, cost, and power/weight. Well, it turned out that internal combustion engines are more costly than we first believed. They now require costly emissions controls systems, and they require costly highly refined fuels for optimal performance and longevity. The steam engine does not have these limitations. The Cyclone engines solved the old problems of low power/weight and low thermal efficiency thereby providing a design competitive with internal combustion engines. What is required to see this thing through to production is more time, more money, the patience that goes with it, and a lot more testing.