Monte Davis wrote:
Damon Hill wrote:

Right. Now all you have to do is actually build a gas
core engine.

Therein lies a substantial challenge.

Why should it be? With all the expertise we've acquired in decades of
running fusion reactors and scramjets -- the total mastery of
turbulence in high-energy, high-gradient flows -- it should be a snap.

Astonishing ignorance from yet another American.