I found this pretty interesting.
http://pixelbark.com/13045/how-the-...-efficiency-of-the-internal-combustion-engine
http://pixelbark.com/13045/how-the-...-efficiency-of-the-internal-combustion-engine
Dyna-Cam flew a similar engine around Chino California for a number of years. Axial Engines are not a new idea. There has been at least 100-years of development and we still do not see many in actual use.
I found this pretty interesting.
http://pixelbark.com/13045/how-the-...-efficiency-of-the-internal-combustion-engine
I like the concept - what kept this engine from coming to market?