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The WW1 modelers' reference library => Aircraft => Topic started by: Berman on June 02, 2021, 09:53:08 PM

Title: Contemporary Air Navigation
Post by: Berman on June 02, 2021, 09:53:08 PM

 Click on Google translate if necessary. https://www.gutenberg.org/files/42489/42489-h/42489-h.htm
  Kites, balloons, and flying machines.