Installed a 5045 6-blade propeller on the rear booster of Screamer 250, it brings cool turbine sound effect as you can hear in the video. 6-blade propeller doesn't improve thrust obviously at high RPM. By using 6-blade on the lift motors, the efficiency at low RPM can be increased.
This 5" 6-blade propeller is suitable to 200.210 .250.280 etc racing copters and 2204，2205，2306 etc motors. It offers fast acceleration, and more stable flight performance.
It has multipal color options:
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HEE Wing F-01 Ultra Delta Wing 690mm - upgraded Mini AR Wing? Diatone Reaper 690
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