This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Transformed into svg format. The original can be viewed here: Controllable pitch propeller schematic.JPG: . Modifications made by PhoneixS.

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Original upload log

This image is a derivative work of the following images:

• File:Controllable_pitch_propeller_schematic.JPG licensed with PD-self
  • 2008-06-22T17:30:17Z Ke4roh 2128x1260 (154272 Bytes) same picture as before, just adjusted for on-screen viewing.
  • 2008-06-19T05:28:28Z KVDP 2128x1260 (220203 Bytes) {{Information |Description={{en|1=A hand-drawn picture of a controllable pitch propeller, drawn after a model from within the book "The Sailors Handbook" by Halsey C. Herreshoff.}} |Source=Own work by uploader |Author=[[User:

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