Reply To: EmDrive + Focus Fusion = Space Access for all?

[HermannH]

KeithPickering wrote:
It may turn out that you can get to theoretical breakeven, but not quite to practical breakeven … or just barely over the line, which would mean that the excess salable energy would be a lot more expensive than assumed.

That is the worry I have as well. According to Eric’s simulation results in the Technical Paper 1 the maximum reasonably achievable ratio of (Xray + Beam) / Input is 1.57.

If you assume a conversion efficiency of 80% for both and no other losses inside the system the net gain on each shot is 25%. This is certainly better than unity but not very comfortably so. Also, if you have low overall gain the waste heat that is generated is going to be very large compared to the net electrical output.

Of course several approximations and assumptions were used in the simulation. So the final result could turn out to be quite different.