Industrial Research 



143 



of ail air force depends on the perfonnance of its air- 

 planes. When bomb loads can be increased, bombers 

 become more useful and more are built, together with 

 Hiore pursuit planes. 



The Navy has developed the airplane carrier and the 

 catapult in order to equip the fleet with airplanes which 

 have become necessary both for observation and as a 

 striking force. Improvements in the airplane are 

 reflected in the greater role assigned by the fleet to its 

 air arm. 



Bibliography 



Research in Aeronautics in this country is covered by the 

 Annual Reports of the National Advisory Committee jar Aero- 

 nautics (Government Printing Office, Washington, D. C.) and 



tlic Journal of the Aeronautical Sciences (New Yorlc). British 

 research results are to be found in the Reports and Memoranda of 

 the Aeronautical Research Committee (H. M. Stationery Office, 

 London) and in the Journal of the Royal Aeronautical Society 

 (London). German research is described by the publications of 

 the Dcutschen Akademie der Luftfahrtforschung, the Lilienlhal- 

 Gesellschaft, and in the periodical, Luftfahrtforschung (Berlin). 



Knf^ine development may be followed through the Proceedings 

 and Journal of the Society of Automotive Engineers. "The Internal 

 Combustion Engine" by Taylor and Taylor (International 

 Textbook Company, Scranton, Pa.) contains a complete bibliog- 

 raphy. 



Aerodynamic research results are given in the comprehensive 

 si.\-volume work, "Aerodynamic Theory," W. F. Durand, 

 Editor-in-Chief, published by Springer (Berlin) under a grant 

 of the Guggenheim Fund for the Advancement of Aeronautics. 

 The contributions of the many authors arc fully documented. 



