Professor Alberto Morelli of the Turin Polytechnic Institute is one who has used language which describes a phantom boat tail which trails behind a truncated streamline body of particular tail length.
The first image below is a conventional loop-antenna fairing used by all Allied air forces in WW-II.
The second image is of an airborne radar system fairing,intentionally truncated,but at a sufficient aft-body length to generate,with the airflow,the remainder of the tail.
