I also read that the one-stroke was capable of 16,000 rpm .... in aviation it would need an exotic reduction unit to achieve prop speeds ....... the transmission could weigh more than the engine.
If you read their web site you'll find this paragraph:
"We are currently prioritizing resources to the power generation, aviation, automotive and marine sectors".
But then if you wanted a ducted fan jet or VTOL, then 16000rpm may be useful.
I attached the wrong PDF Patent above; it should have been their 3 cylinder radial which explains all the the working parts that are the same as the current range of engines from their site
193.7 KB Views: 9