Getaprop hung shen propellers http://www.getaprop.com/ Sat, 4 Feb 2012 14:30:52 -0600 en 17" X 4 Blade Bronze Hung Shen Efficiency Propeller... EAR= 0.68 Weight 15 Lbs Hub Dia Fwd 2 3/8" Hub Dia Aft 2 1/8" Hub Length 3 1/4" Bore Range 1 1/4" To 1 1/2" Heavy duty manganese bronze alloy for durable performance. All have a anti-sing trailing edge installed to reduce propeller induced harmonics. All Getaprop Propellers are Computer Checked and Static Balanced Prior to Shipping... http://www.getaprop.com/content-product_info/product_id-6237/hung_shen_ep_4_propeller_17_dia.html http://www.getaprop.com/images/products/ep4.JPG http://www.getaprop.com/content-product_info/product_id-6237/hung_shen_ep_4_propeller_17_dia.html