"The negative electrode appears to chase the positive electrode so that there is a net force of the system… in the negative-to-positive direction."
https://www.ttbrown.com/the-man-who-mastered-gravity/10-the-biefeld-brown-effect/
"This invention is a spacecraft with a triangular hull having charged flat plates on the vertical corners of the three sides. The two rear corners are charged to a potential V. The forward corner is charged to a potential −V. The 60° angle on the corner creates a line charge density singularity that produces a huge horizontal electric field pointing from the back to the front of the craft which is also parallel to the sides of the triangle"
https://patents.google.com/patent/US20060145019A1/en