The evolution of bigger, better and faster aircraft of all classes received a great impetus during the War period. Now, when Peace has come and the Air Age is upon us, the development of more modern aircraft both for military defensive purposes and for civil transport uses, remains a matter of urgency if Great Britain is to retain her position as a great transport power. The tempo of development reached during the War must not be slowed down if we are to keep pace with, let alone excel, the United States.