At 4 minute 30 second mark of first vid in your reply above,Seems a new term being used “FRM”Flameless Reaction - motor?It is written above few screenshots in vid at that time stamp and spoken by presenter to explain how it works ( no combustion?)Was very odd to me , A phase change would be flameless reaction..?First time I have ever seen this term used in what appears to be an ICE ( the “C” being very relevant to success ..normally )