Babylon 5 Aide said:
Does anyone have a way of figuring how far a jump is? Four jumps from B5 is mentioned, but I don't know what that means really...
There is no distance attached to a "jump" - one jump just means "travelling through hyperspace alone ONE of the beacon lines" (for beacon lines, see the map in the galactic guide or basic book).
So four jumps would mean four different beacon lines travelled until you reach your destination.
In fact, hyperspace beacon lines have no real relation to real-space distances. Due to "hyperspace currents" and such they go as far as the plot needs.
Babylon 5 Aide said:
...and how long does it take for jump engines to recharge after being used to come out into realspace?
Well, that depends on your jump engine. One like the WS can do it in two minutes (unless it's taken offline, then it needs ten times as much time to recharge). A Sharlin can recharge in 50 seconds. Primus in 80 sec., Omega and G'Quan need 100 sec. (look up the times in Babylon 5 wars, then remember that each B5W turn is 5 sec. - as determined by the cold start recharge of a WS's jump engine!)