Have a matched set of PowerTech RXB416 4 Blade Props 13 1/4 diameter for Sale (left and right hand rotation). Great shape just wrong pitch for my F115's. May be willing to trade for Yamaha 3 Blade Props in a 13 1/4 x 16 pitch Stainless in good condition. Will not separate and price is firm at $700. Local pick up only in Central Florida area, no shipping.