Ha! but it's really simple maths, did the maths, and I even spelled out
Mass and
Velocity. And then deleted a bit on energy and acceleration.
Quote:
Originally Posted by red-beard
While I agree that this is crazy, most rocket engines/nozzles are supersonic. The PR just needs to be above 1.4, which most likely it will. |
Yeah, I was thinking that a converg/diverging nozzle would bring the mass flow a bit above above Mach, but I don't have a feel for or remember those limits....just remembering work-arounds for automotive intake restrictions, and that problems arrive when trying to move gasses above Mach 1. And clearly just trying for some rough calc's for viability.