Designed to produce both thrust and electric power for interplanetary spacecraft
Long-term source of acceleration with self-sustaining fuel supply. Modelling shows that this technology can potentially propel a spacecraft with a mass of about 1,000 kg (2,200 lb) to Pluto in 4 years.
Since DFD provides power as well as propulsion in one integrated device, it would also provide as much as 2 MW of power to the payloads upon arrival. Designers think that this technology can radically expand the science capability of planetary missions.