This is a 4.75x4.75 Speed 400 Electric Propeller from Advanced Precision Composites. Engine Shaft Dia. Propeller Weight: 0.14 oz. The higher strength allows the use of thinner cross-sections, beneficial to weight and aerodynamic efficiency.
The APC Speed 400 Propeller is suitable for precise, powerful, and lightweight propeller operations in any setting that requires high-efficiency, easy-to-use and safe propeller solutions.
