An interesting Euro consortium on surface & jet plasma actuators, either for aerodynamic wing efficiencies or control. Any effectiveness could reduced structural weight, engine combustion optimization and primarily to improve aerodynamic performance.
PLASMAERO - useful PLASMas for AEROdynamic control Home
Read many syfy books with plasma tech but primarily used for radar-evading/stealth properties. Early aeronautics plasma tech were used in early Russian fighter plane designs & now being explored by SIXTH gen Chinese fighter plane designs. First read about them in fictional fighter aircraft; Dale Brown's XF-15 Cheetah, XF-34A Dreamstar, & Fi-170 Tuman and Tom Clancy's F-19a Ghostrider...and used in many 'cloaking' spaceships.