Curtis Youngblood YEI-YB-710FAI 710mm Radix FAI V2 Main Blades
[YEI-YB-710FA]

These are the new Version 2 blades (June 2011)

These Radix blades are designed for F3C flying, unmatched performance in both hovering and auotrotations and fly like they are on rails in fast forward flight.