Apologies, Ralph, I completely missed your postYou know... I might be getting a little greedy here, but I'm going on a don't ask, don't get ethos. Have you ever considered factoring in energy requirements and specific fuel consumption calculations? (I'm presuming wildly in not talking jibber jabber to you based on the fact you wrote the program!) and then extrapolating for potential future 'space drives'. I'm sure some reasonably legitimate projected figures can be found for the SFC of things like fusion/antimatter etc etc. That way for those who are quite interested in ensuring their SF ships are kept plausible they can actually have some basis for sizing them (fuel tanks/engines and so on).
As I say. It's awesome what you've done so far and makes a mockery of my scribbled note pad of calcs.
. I've not gone into adding that stuff as there are good tools out there that do it. I played around a bit in the atomic rockets pages: http://www.projectrho.com/public_html/rocket/index.php but I don't realistically have the time to add that kind of thing in. However if you are travelling around at those sort of speeds for long distances then you should certainly consider the impact of time dilation as the traveller perceived values are the figures you should be using to calculate such things.
