APC propeller blades that assemble onto a propeller hub. Comes with five adapter rings that adapt to different motor shafts. Comes in a bag attached to a header card.
APC propellers are manufactured using a pultrusion process which allows for a higher fiber (60%) to resin (nylon binder) density. This provides substantially higher strength and stiffness than with glass filled nylon. The additional stiffness is beneficial to control of vibration resonance response. The higher strength allows the use of thinner cross-sections, beneficial to weight and aerodynamic efficiency.
