DnDWiki:Ship's Rating

Ship's rating is a value which refers to the tactical speed of a spelljamming ship. It is determined by the propulsion, usually a Helm, which draws power from the strength of its helmsman. Each point of SR tranlates into 500 yards per round of tactical speed.

The following items or additions affect SR:

Accelerator | Rudder of Speed |

SR has no effect on a ship's maneuverability.

If playing 3rd ed. or higher, you may refer to SR as Tactical Speed (TS) to avoid confusion with Spell Resistance (SR)