MULTICOPTER WITH WIDE SPAN ROTOR CONFIGURATION AND PROTECTIVE FUSELAGE

    公开(公告)号:US20190016450A1

    公开(公告)日:2019-01-17

    申请号:US16107518

    申请日:2018-08-21

    CPC classification number: B64C27/08 B64C25/54 B64C27/001 B64C27/20

    Abstract: A vertical takeoff and flying at a constant altitude are performed using an aircraft. The aircraft includes a fuselage, a left arm (attached to the fuselage), a right arm (attached to the fuselage), a left float (attached to the left arm), a right float (attached to the right arm), and a plurality of rotors. The plurality of rotors includes a left inner rotor and a right inner rotor (attached at a fixed angle to a top surface of the left float and the right float, respectively) and a left outer rotor and a right outer rotor (attached at a fixed angle to a top surface of the distal end of the left arm and the right arm, respectively).

    BISTABLE PITCH PROPELLER SYSTEM WITH UNIDIRECTIONAL PROPELLER ROTATION

    公开(公告)号:US20180029694A1

    公开(公告)日:2018-02-01

    申请号:US15225028

    申请日:2016-08-01

    CPC classification number: B64C11/343 B64C11/46 B64C27/57 B64C29/02

    Abstract: A propeller includes a blade free to rotate about a longitudinal axis of the blade. The propeller also includes a mechanical stop positioned to engage mechanically a first portion of the blade and/or a first structure coupled mechanically to the blade when the blade is in a first position. The propeller also includes a magnetic stop positioned to engage magnetically a second portion of the blade and/or a second structure coupled mechanically to the blade when the blade is in a second position. The blade rotates to the first position against the mechanical stop when the propeller is rotated at a first rotational speed and the blade rotates to the second position against the magnetic stop when the propeller is rotated at a second rotational speed in a same direction as when the blade is in the first position.

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