FOREWORD 



On behalf of the Editorial Board, I would Kke to make 

 an acknowledgement to those branches of our military 

 establishment whose interest and whose financial sup- 

 port were instrumental in the initiation of this publi- 

 cation program. It is noteworthy that this assistance 

 has included all three branches of our Services. The 

 Department of the Air Force through the Air Research 

 and Development Command, the Department of the 

 Army through the Office of the Chief of Ordnance, and 

 the Department of the Navy through the Bureau of 

 Aeronautics, Bureau of Ships, Bureau of Ordnance, 

 and the Office of Naval Research made significant con- 

 tributions. In particular, the Power Branch of the 

 Office of Naval Research has carried the burden of 

 responsibilities of the contractual administration and 

 processing of all manuscripts from a security stand- 

 point. The administration, operation, and editorial 

 functions of the program have been centered at Prince- 

 ton University. In addition, the University has con- 

 tributed financially to the support of the undertaking. 

 It is appropriate that special appreciation be expressed 

 to Princeton University for its important over-all role 

 in this effort. 



The Editorial Board is confident that the present 

 series which this support has made possible will have 

 far-reaching beneficial effects on the further develop- 

 ment of the aeronautical sciences. 



Theodore von Kdrman 



