У-2 propeller

Propeller of the U-2 plane https://grabcad.com/library/u-2-po-2-scale-1-1-legend-of-soviet-aviation-post-2-1 with M-11 motor https://grabcad.com/library/engine-m-11l-1 Diameter 2.4 m, step 1.73 m Material - plywood (glued bars) pine and oak