Not to mention, let's assume for the moment that the Ferret is mustering max speed at 520kps. 22KM @ 520KM/S = .042 sec for 22KM
If you 520KM each second, then 22KM is going to only be a fraction of that time.
So, even if the Kilrathi ships is really huge at 22KM, at that relative speed you...