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EMdrive inventor Shawyer's latest information on military applications and...
EmDrive is the first true Propellantless Propulsion technology.
High frequency electrical energy is directly converted to thrust.
It is a resonant microwave cavity, shaped to obtain different group velocities at each end, and thus achieve a force difference as the EM wave reflects off each end plate.
EmDrive is not a reactionless thruster, it is simply a new class of electrical machine.
Conventional microwave technology limits the maximum Q of resonators to around 50,000, giving a specific thrust of 200 mN/kW at 3 km/s. This technology will be utilised in first generation engines where typical applications will be the orbital transfer and orbit maintenance of communication satellites and the primary propulsion for science missions.