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Aircraft Propeller Question????

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Who makes this aircraft blade? Blade model number- D9390 SK-1R

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  1. Hartzell Propeller Inc

    HC-E4N-3/D9390

    http://209.85.215.104/search?q=cache:Vkz...


  2. Hartzell. It is a D shank blade.  The maximum bore diameter is 1.5035 and the maximum diameter for the critical area (radius) is 1.5635. When removing nicks or corrosion you cant take out more then .030 inch.  When removing damage on the blade airfoil, you need to watch the blade thickness because of the 0.030 rule. ** Paragraph 1B of the Hartzell 133C Manual
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