You can get it from a random encounter in the Zolton Homeworlds system (details here). I didn't even realize the significance of the encounter until I got through it and was awarded a ship.
I haven't even tried flying the Zolton ship yet. I really should do that...the ol' Kestrel can't take much of a beating. -- "The counsel of fools is all the more dangerous the more of them there are." -Ólafr Höskuldsson