A propeller cap with fins installed at the rear of the propeller, effectively reducing hub vortex energy loss
Simple structure, lightweight, easy to install, safe and practical to use
A propeller cap with fins installed at the rear of the propeller, effectively reducing hub vortex energy loss
Simple structure, lightweight, easy to install, safe and practical to use
Enerty saving mechanism
Breaking down hub vortex to straighten wake flow of propeller, then the negative pressure on the cap can be recovered
Reducing propeller's rotational losses of inner radii.
Producing a liittle negative torque to reduce propeller shaft torque and generating a little thrust