Yamaha K Series Turbo 1 Stainless Steel Propeller - 3 Blade - 13.25 Dia - 13 Pitch - RH Rotation - MAR-13213-TR-D0 This is the prop that started it all. The Turbo 1 series of propellers is the flagship propeller of the entire line and its versatility is unmatched. Whether you have a tri-log pontoon boat, a stern drive runabout, a bass boat or a triple engine rigged center console offshore boat, the Turbo 1 is there ready to go. Getting out of the water and onto plane is a breeze with these props due to their specially-vented blade design. The Turbo 1 features excellent turning and cornering qualities, causing less slippage, because of the exclusive cup design on the trailing edge of the blade. With its proprietary progressive pitch design, the Turbo 1 offers enhanced bow lifting characteristics, giving your boat the performance it's been waiting for. And once you're on plane and running across the water, the Turbo 1 prevents excessive steering torque through its unique blade geometry.