Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 491
PREPARING THE PROPELLERSTRIPS. … THE PROPELLER BEFORE CUTTING DOWN. surements, but a proportion of one to three, thatis, a width three times the depth, will be foundto work well in actual flights. Later, when youcome to build more complicated aeroplanes and imitate the models illustrated in these articles,you may vary the…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial], 1873, leaf 491](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial372dodg-491-550.webp)
