Ionocraft Model Demonstration in 1964

In 1964, de Seversky built a two-ounce (57 gram) Ionocraft scale model and demonstrated its ability to fly while powered from an external 90 watt power conversion system (30,000 volts at 3 mA), significantly higher that conventional aircraft and helicopters. This translated into a power-to-weight ratio of about 0.96 hp/pound.
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