Master Airscrew 15x7 3-blads  (1) Master Airscrew 3-blads for både fuel og elektromotorer.  15x7 - 3-Blade Propellers for Model R/C Airplanes 3 blade model airplane propellers specially developed for the most demanding hobby professionals. Great performance and scale look both for electric motors and glow engines. Carefully crafted from Glass Fiber Reinforced Composite. Available in sizes 5" to 16". Propeller diameter   15" / 381mm Propeller pitch   7" / 178mm Hub thickness   3/4" / 19.1mm Shaft diameter   5/16" / 7.94mm ** Propeller Weight   3.35oz / 95g Direction of rotation   Normal / Tractor Material   Glass Fiber R Composite Color   Black   * prepared for versatile shaft diameters. For more information check the shaft diameter guide  here