Having set the game aside for a few years, I'm back. And to get reacquainted with the game, one of the things I've done is to re-read a bunch of my old posts to refresh my memory about how I used to do things.
Some years back, I wrote this:
"I suggest using a 25HS engine at 1.20 power mod for your main warship drive. That's a 960-EP engine, and one of those will push an 8,000 ton hull at 6,000 kps, a perfectly respectable speed. That's a 2500-ton engine, and with 610 tons of fuel it'll have a range of around 25 billion km, which doesn't sound like a lot but turns out to be easy to live with once you try it. Spending 3110 tons of an 8,000-ton ship on fuel and engine isn't bad."
And so I started a new game, bought Magneto-Plasma with my starting points, and tried to construct this engine. I've found that a 25HS engine with 1.20 power mod isn't 960EP as I then wrote, but 480EP.
Was I wrong when I wrote this recipe? Have I made some error in trying to reproduce it now? Have the rules changed since then?