Reply To: reference to electric field propulsion?

[vansig]

dennisp wrote: Being that focus fusion is already a rocket, I’m wondering: what is the exhaust velocity?

Beyond that, has anyone figured specific impulse and thrust? Would it make sense to simply mix additional reaction mass into the exhaust stream for a higher-thrust application?

I asked a similar question awhile back, which was “what is the speed of the alphas?”, and got the reply ~0.028 c, (8400 km/s).
http://answers.yahoo.com/question/index?qid=20090402091850AAAnih4

exit velocity, and therefore specific impulse, will depend on what these carry with them as they leave the reaction chamber. yes, you can mix additional reaction mass for a higher thrust application.

thrust will be very low, since amount of material expended per pinch is very low, but FF becomes a viable form of propulsion even before it reaches break-even.