CPC B64D 27/24 (2013.01) [B64C 27/54 (2013.01); B64C 29/0008 (2013.01); B64C 29/0033 (2013.01); B64D 33/08 (2013.01); B64D 35/02 (2013.01); H02K 5/203 (2021.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); H02K 11/33 (2016.01); H02K 7/006 (2013.01)] | 30 Claims |
1. An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft possessing a lightning ground path, the electrical propulsion system comprising:
at least one electrical engine mechanically connected directly or indirectly to an aircraft frame of the VTOL aircraft and electrically connected to an electrical power source, the electrical engine having:
an electrical motor having a stator and a rotor;
a gearbox assembly comprising:
a sun gear;
at least one planetary gear;
a ring gear; and
a planetary carrier; and
a bearing located in the electrical engine that provides a grounding path from a propeller flange assembly to the aircraft frame.
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