American and German helicopter manufacturers began experimenting with mounting tip jets on the ends of helicopter rotor ...

This article presents a stator core loss suppression method for a rotor flux-switched permanent magnet (RFSPM) machine by reconfiguring rotor permeance. By analyzing the sources of PM losses and ...

The future of U.S. military rotorcraft took another step toward tiltrotor technology following Bell’s recent down-select to develop a high-speed, hovering X-plane design for the Pentagon. As part of ...