This ship is a concept I thought would be cool to try with the rail system. From playing this ship, it seems to work better if someone is in control of the turret, but the AI works too, just a bit annoyingly. The main issue I have found with this ship is how the turret gets in your face sometimes... that's why I added cloaking.
Stats:
(Main Ship)
Mass:3284.6
L/H/W: 35/33/35
PowerCap: 1,810,603
PowerRecharge: 445,285
Thrust: 7180
ShieldCap: 187,467
ShieldRecharge: 1210
(Turret)
Mass:157.4
L/H/W: 34/24/9
PowerCap: Same As Ship
PowerRecharge: Same As Ship
Thrust: 0
ShieldCap: 8,645
ShieldRecharge: 473
The turret's core is located inside the main ship one block under the ship's core. The turret is able to perma cloak/jam.
I hope you like this ship :D