This is a 5x3E thin composite propeller from Advanced Precision Composites. For use on electric powered aircraft only not for glow or gasoline powered engines.
Features: Gray composite construction
Includes: One 5x3E Thin Electric Propeller and 0.236 and 0.188 Locating Rings
Requires: All props require balancing and may need prop reamer
Hub Diameter: 0.50
Hub Thickness: 0.23
Shaft Diameter: 1/4
Product Weight: 0.11oz (3.1g)