What software are you using! You're clearly spending lot of time on it I'm recreating real-life machines in a physics sandbox, according to their specifications. Is there any design of yours that you think would be challenging/interesting to build and try to make it work?
CUTANGUS, got stranded on your work when looking for some inspiration for some new hybrid dieselpunk era machine... Quited modelling, from now on I'll just feast on your work. I wander where you got all those crazy ideas of putting diesel free piston gas generators on post WW2ish inspired planes!!! Too much of Bill Gunston's The development of piston aero engines probably..? I'm still aghast with most if not all the concepts you've come up to.