SPARKHOBBY 40pcs 20 Pairs Rush 2.5 Inch 3-Blade Propeller CW CCW Suitable for Babyhawk RC FPV Quadcopter Racing Drones (2.5Inch 20Pairs Gray Black)

tem: EmaxAvan Blur Rush 2 Inch / 2.5 Inch 3 Blade Propeller ​Parameters: Blur Rush 2.0 inch prop ​The Blur Rush propeller 2x1.9x3 was designed for Babyhawk Race 2 inch to maximize flight time and durability of the propeller without losing performance. This propeller is matched to 1106 6000kv on 3s and 4s. A true 1.9" pitch throughout the blade gives a linear control feeling across the throttle band while still achieving high speeds. This allows for ease of flight and more precision. With a special PC blend the Blur Rush weighs 1.1 grams. Utilizing thicker airfoils greatly increases durability and stiffness. The hub diameter is also increased to thicken the root chord maximizing durability. Most of the weight is centralized near the hub creating a low moment of inertia of 0.77 grams*square centimeter which in turn makes a very responsive prop. ​ ​The Blur Rush was designed from the ground up starting from design constraints such as RPM, air speed, and required thrust. From these constraints aerodynamic models were built to predict performance and to design the blade shape. Highly cambered airfoils were used to achieve high lift coefficients at high angles of attack prolonging stall. This allows for a higher blade angle while still remaining efficient. The cambered airfoils also allow a greater flight envelope making for great low end responsiveness while still being able to achieve high speeds. ​ ​Geometry: ​2 inch diameter ​1.9 inch pitch ​3 blades ​weight: 1.1 grams ​Moment of Inertia: 0.77 g*cm^2/8 Blur Rush 2.5 inch prop The Blur Rush propeller 2.5x1.9x3 was designed for Babyhawk Race 2.5 inch conversion kit to maximize performance and flight time. This propeller is matched to 1106 4500kv for 4s or the 1106 6000kv on 3s. A true 1.9" pitch throughout the blade gives a linear control feeling across the throttle band while still achieving high speeds. This allows for ease of flight and more precision. With a special PC blend the Blur Rush Mini weighs 1.25 grams. Utilizing thicker airfoils greatly increases durability and stiffness. Most of the weight is centralized near the hub creating a low moment of inertia of 1.24 grams*square centimeter which in turn makes a very responsive prop. ​Inertial Properties: ​weight: 1.4 grams ​Moment of Inertia: 1.24 g*cm^2 ​Package Included:20pcs (10xcw,10xccw)

• A special Polycarbonate blend is used to achieve high durability. This material is incredibly tough and ductile to resist fracture in high impact crashes.
• A thick blade root was designed to further increase this durability. Our injection mold process is optimized to reduce bubbles in the plastic to increase the strength of the propeller and to maintain superb balance
• designed for Babyhawk Race 2/2.5 inch to maximize flight time and durability of the propeller without losing performance.