books.google.co.uk - The quest for an effective fighter airplane to achieve air superiority during World War 1 resulted in a series of pusher fighter planes, designed with the engine at the rear and the machine gun at the front. These ungainly, heavy looking fighters did surprisingly well and they were able to hold their...http://books.google.co.uk/books/about/Pusher_Aces_of_World_War_1.html?id=is-ij4XZRTIC&utm_source=gb-gplus-sharePusher Aces of World War 1
