Quite a lot, I find that if I am killed in a fighter, I automatically and immediatly re-spawn in a fighter hanger on a friendly base. Now, I haven't really worried about this until tonight when I re-spawned again after being shot down by Pacfan only to be sat in the hanger a sector away from the fight and get shot down by Pacfan again, some 6 seconds later.
Things that make you go "WAH?"