Excerpt from Model Aeroplanes and Their Motors: A Practical Book for Beginners Tremendous developments have taken place in aeronautics and aircraft are fast developing in size, speed, and range of action. They have revolutionized warfare, and seem to be destined to become a most important factor in the reconstruction that will follow the war. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.