Electrothermal-chemical technology
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Electrothermal-Chemical (ETC) technology is an advanced gun propulsion candidate that can substantially increase gun performance with less system burden than any other advanced gun propulsion technology. It has been under development since the mid 1980s.
ETC uses electrical energy to augment and control the release of chemical energy from existing or new propellants, and can significantly improve the performance of existing conventional cannons, both direct fire (e.g., tanks) and indirect fire (e.g., howitzers and Navy guns). The electrical energy is used to create a high-temperature plasma, which in turn both ignites the propellants and controls the release of the chemical energy stored in the propellants during the ballistic cycle.
See also railgun.