Text: "Apparatus for the promotion and control for vehicular flight." Using the known atmospheric voltage gradient of about 400 volts/meter, increasing logarithmically with altitude, a positively charged vehicle will be propelled upwards with increasing force. Magnitudes of force not rigorous. U.S. Patent no. 3,095,167. June 22, 1963.

See Also: electrical propulsion, atmospheric electricity, patents.

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