Could the "drive field" of an acceleration drive some kind of passive attribute of the engine/ship?
This would explain well why you can coast with an acceleration drive after you cut the engine power without turning most acceleration drives into "continent killer missiles".
Dartz mentioned another attribute of the SS Ciara which might be extended to all acceleration drives. In the presence of a strong mass (like a planet) the acceleration drive equipped ship is slowed down similar to an acceleration drive.
This would explain well why you can coast with an acceleration drive after you cut the engine power without turning most acceleration drives into "continent killer missiles".
Dartz mentioned another attribute of the SS Ciara which might be extended to all acceleration drives. In the presence of a strong mass (like a planet) the acceleration drive equipped ship is slowed down similar to an acceleration drive.