aeroplanestxt下载

《aeroplanes》txt下载简介:

Aeroplanesby J. S. ZerbeThis work is not intended to set forth the exploits of aviatorsnor to give a history of the Art. It is a book of instructionsintended to point out the theories of flying, as given by thepioneers, the practical application of power to the variousflying structures; how they are built, the different methods ofcontrolling them; the advantages and disadvantages of the typesnow in use; and suggestions as to the directions in whichimprovements are required.It distinctly points out wherein mechanical flight differsfrom bird flight, and what are the relations of shape, form, size...