ure 2. Curvature radius conditions between the hub and blades of the propeller: (a) 4.6 mm; (b) 4.0 mm. R = 4.6 mm R = 4.0 mm Figure 2. Curvature radius conditions between the hub and blades of the propeller: (a) 4.6 mm; (b) 4.0 mm.
ure 2. Curvature radius conditions between the hub and blades of the propeller: (a) 4.6 mm; (b) 4.0 mm. R = 4.6 mm R = 4.0 mm Figure 2. Curvature radius conditions between the hub and blades of the propeller: (a) 4.6 mm; (b) 4.0 mm.