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No that has no benefits for aviation at all, except for the marketing department. A large amount of losses funnelling the airflow from motor to a small strip, from which it is propelled at high velocity. As stated in many places on this site, thrust T = $\dot m \cdot \Delta V$, while the energy expelled E$_{kin}$ = $½ \cdot \dot m \Delta V^2$. So thrust ...