Underscores “_” before and after a word or phrase indicate _italics_ in the original text. Equal signs “=” before and after a word or phrase indicate =bold= in the original text. Small capitals have been converted to SOLID capitals. Illustrations have been moved so they do not break up paragraphs. Typographical and punctuation errors have been silently corrected. Many of the illustrations are not in numerical order. This is not a mistake, it is part of the original book. The Building of Model Monoplanes, Biplanes, etc., together with a Chapter on Building a Model Airship…
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