| The prop extensions measure 2.0 inches in length and are available for Quadra Q-35, Q-40 or Q-42 engines, US-41 or Zenoah G-38. The engine side thread is sized to match the specific engine crankshaft. The prop side thread is a 5/16-24 UNC-2B thread. (Please specify engine when ordering.) The scale spinner (available for 1/4 scale only) is a machined unit that depicts the spinner used on Franklin or Lycoming engines that used either Frahlin or Sensenich props. The spinner is provided with a 5/16-24 UNC-2A socket head cap screw. |
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