An anti-FTL field (sometimes called an interdiction field by Nepleslians) is a subspace interference field and/or gravity pull that interferes with the generation of hyperspace fold points, thus making Hyperspace Travel and other forms of FTL travel more difficult or impossible.
In the Star Army Role-Play, AF fields can be created by space stations, planetary installations, or by starships. For game purposes, all AF fields are equal in strength. The reason for this is to prevent competition and arguments in this area. Anti-FTL fields affect all ships in the area, including the one projecting the field.
The chart below outlines the strength of Anti-FTL fields:
|Level||Type||Distortion Drive||Hyperspace Drive||Teleportation||Wormhole|
|Normal FTL Conditions|
|1||In a star system||75% speed||2% speed||Normal||Normal|
|2||Planetary Orbit||50% speed||Disabled||Normal||Disabled|
|Hazardous FTL Conditions|
|3||Inside nebula or debris field||25% speed||Disabled||Normal||Disabled|
|4||Artificial Anti-FTL Field||Disabled||Disabled||Disabled||Disabled|
Many military ships have countermeasures of some sorts to restore some FTL ability. Using this ability allows a ship to behave as if was in the next lowest level of anti-FTL; however, these systems can only be used at levels 3 and above.
|Ship versus its environment|
|Level 3||any number of ships||Level 2 Anti-FTL|
|When ships face off|
|1 ship||None||Level 4 Anti-FTL|
|1 ship||1 ship||Level 3 Anti-FTL|
|2+ ships||1 ship||Level 4 Anti-FTL|
|1 ship||2+ ships||Level 3 Anti-FTL|
|many ships||smaller number of ships||Level 4 Anti-FTL|
|many of ships||even more ships||Level 3 Anti-FTL|