Motor/generator system and method

An electromagnetic motor/generator, comprising:

• a flux assembly having at least one coil and at least one magnetic field source, separated by a first gap and a second gap;
• an interference drum having an axis, the interference drum including a first rotor plate having a first outward facing surface and a first inward facing surface, a second rotor plate having a second outward facing surface and a second inward facing surface, a hub connecting the first rotor plate and the second rotor plate in a spaced apart relationship with the first inward facing surface of the first rotor plate and the second inward facing surface of the second rotor plate facing each other, at least one first magnetically permeable section attached to the first inward facing surface of the first rotor plate, and at least one second magnetically permeable section attached to the second inward facing surface of the second rotor plate, the at least one first magnetically permeable section and the at least one second magnetically permeable section arranged substantially directly opposite each other;
• and
• wherein the interference drum is movable through a circular path relative to the at least one coil and to the at least one magnetic field source to position the at least one first magnetic field permeable section and the at least one second magnetic field permeable section inside the first and second gaps at substantially a same instant in time.