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1. (WO2007099201) ELECTRIC SAIL FOR PRODUCING SPACECRAFT PROPULSION

Pub. No.:    WO/2007/099201    International Application No.:    PCT/FI2007/000056
Publication Date: Sat Sep 08 01:59:59 CEST 2007 International Filing Date: Sat Mar 03 00:59:59 CET 2007
IPC: B64G 1/40
Applicants: JANHUNEN, Pekka
Inventors: JANHUNEN, Pekka
Title: ELECTRIC SAIL FOR PRODUCING SPACECRAFT PROPULSION
Abstract:
A spacecraft propulsion system comprises a plurality of wires (102) or other electrically conductive elongated members deployed from a main body (101) into respective radial directions. An electric potential generator (605) generates an electric potential on board said main body (101). The electric coupling between the electric potential generator (605) and the elongated members is controlled (604) so that all or some of the elongated members (102) assume a high positive potential. An auxiliary propulsion system (203) rotates said main body around a rotational axis (502) that is perpendicular to said radial directions, thus creating a centrifugal supporting force to the elongated members.