Relative Speeds Required for Blade Rotation Ultimately, this only really matters if you are backtrolling, trolling 1.8 MPH, you may run into problems with higher resistance blades so choose blades like Willowleaf, Whiptail or Dakota. Also, smaller blades start rotating at slower speeds relative to their larger counterparts. As a general rule for blades of similar size, the propeller and Colorado blades start to rotate at the slowest speeds (~0.5 to 0.8 MPH), Indiana blades are in the middle while Willowleaf blades need higher speeds for rotation. For a complete list of sizes please click here. Below I show examples of all types and a representative set of sizes, colors and textures. There are at least seventeen different types of blades, at least nine textures and an infinite possibility of colors and color patterns. Types of Spinner Blades for your Spinner Harness
