1. A flight vehicle engine utilizing spark discharges through which intense electric and magnetic fields are established, for periods ranging from microseconds to a few milliseconds, generating an electromagnetic force which drives plasma along the leads and away from the spark gap.
2. An engine set up for propelling a flight vehicle which is based on the use of spark discharges through which intense electric and magnetic fields are established for times ranging from microseconds to a few milliseconds.

A resulting electromagnetic force drives the plasma along the leads and away from the spark gap.