“Yes, I said ‘fission,’ ” Truman told them after giving them most of a minute to absorb it, “and it’s another thing we’ve adapted from the Graysons. Unlike the rest of the galaxy, they still use fission plants, although they’ve reduced their reliance on them steadily for the last thirty or forty years. But Grayson—and, for that matter, Yeltsin’s asteroid belts, as well—are lousy in heavy metals… and fissionables. They’d bootstrapped their way back to fission power by the time of their Civil War, and by the time the rest of us stumbled across them again and reintroduced them to fusion, they’d taken their fission technology to levels of efficiency no one else had ever attained. So when we added modern, lightweight antiradiation composites and rad fields to what they already had, we were able to produce a plant which was even smaller—and considerably more powerful—than anything they’d come up with on their own.

“I don’t expect anyone to be installing them on any planetary surfaces any time soon. For that matter, I doubt we’ll see too many of them being installed in capital ships. But one of the new plants handily provides all the power a Shrike needs, and despite all the bad-history bogeyman stories about fission, disposal of spent fuel elements and other waste won’t be any particular problem. All our processing work is being done in deep space, and all we have to do with our waste is drop it into a handy star. And unlike a fusion plant, a fission pile doesn’t require a supply of reactor mass. Our present estimate is that a Shrike’s original power core should be good for about eighteen T-years, which means the only practical limitation on the class’s endurance will be her life support.”

Gearman pursed his lips in a silent whistle at that. One of a conventional LAC’s several drawbacks was that its small size prevented it from cramming in anything like the bunkerage of regular warships. RMN battlecruisers could take on sufficient reactor mass for almost four months, but they were specifically designed for long-range, deep penetration raids as well as convoy protection. A light attack craft, on the other hand, was fortunate to be able to stow sufficient hydrogen for a three-week deployment, which made her dreadfully short-legged compared to her betters. But if she only had to refuel every eighteen years—!

“It sounds impressive, Ma’am,” he said after a moment, “but I don’t know a thing about fission power.”

“Neither does anyone else off Grayson, Mr. Gearman—outside the teams which have been developing the new piles for us, that is. We only have fully trained crews for ten or twelve of our LACs; the others will be trained here aboard Minotaur and the Hancock Station fleet base, and we’ve been fully equipped with the necessary simulators. We also have a suitable training cadre from the Jankowski Cartel to help you engineering types ease into things. You’ll have about three T-weeks between here and Hancock to get your toes wet, and current plans call for you and your fellow engineers to be properly familiarized with your new equipment within three months, at which time we will begin our actual hands-on training with the LACs.” She shrugged. “Ass-backwards, I know. You should have been trained on the new plants before Minotaur’s keel was even laid. But even though Project Anzio has been given the highest priority, certain, ah, hardware aspects of it have refused to cooperate as much as we might have wished. And to be honest, some of the security types were always happier with the idea that all the training would take place aboard Minotaur, well away from any prying eyes, and not in simulators aboard a shipyard somewhere.”