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1. (WO2018157426) PROPELLER, POWER ASSEMBLY AND AIRCRAFT

Pub. No.:    WO/2018/157426    International Application No.:    PCT/CN2017/078258
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Tue Mar 28 01:59:59 CEST 2017
IPC: B64C 11/18
B64C 27/467
Applicants: SZ DJI TECHNOLOGY CO., LTD.
深圳市大疆创新科技有限公司
Inventors: LIU, Feng
刘峰
CHEN, Peng
陈鹏
DENG, Tao
邓涛
Title: PROPELLER, POWER ASSEMBLY AND AIRCRAFT
Abstract:
A propeller, a power assembly and an aircraft, the propeller comprising a propeller base and a blade (1) connected thereon. The blade (1) has an angle of attack of 14.05°±2.5° and a chord length of 11.94mm±5mm at a position where the distance between the blade (1) and the center of a propeller disk formed by the propeller is 59.32% of the radius of the propeller disk; the blade (1) has an angle of attack of 11.44°±2.5° and a chord length of 10.25mm±5mm at a position where the distance between the blade (1) and the center of the propeller disk formed by the propeller is 76.27% of the radius of the propeller disk; and the blade (1) has an angle of attack of 9.99°±2.5° and a chord length of 8.64mm±5mm at a position where the distance between the blade (1) and the center of the propeller disk formed by the propeller is 93.22% of the radius of the propeller disk. A propeller configured using the described parameters may reduce resistance during the rotation process of the propeller, thereby improving the flight performance of the aircraft.