Q Tip

[Looks2Young]

http://www.hartzellprop.com/product_...pport_faqs.htm

Q-tip propeller blades are formed by bending the tip section of the blade 90° toward the face side.

Aerodynamic improvements include a reduced diameter and decreased tip speeds. This results in quieter operation and reduced tip vortices. The 90° bend reduces the vortices that, on traditional blades, pick up debris that can contact the blades and cause nicks, gouges and scratches.