Murthy 



X. ACKNOWLEDGEMENTS 



The author is indebted to the President of Portsmouth Poly- 

 technic for the facilities provided for the preparation of this study 

 and is personally grateful to Dr. D. C. Chandler, Head of Depart- 

 ment of Mechanical Engineering and Naval Architecture for his 

 interest and encouragement of this work. 



Special thanks are also due to Professor G. M. Lilley, Head 

 of the Department of Aeronautics & Astronautics, University of 

 Southampton, for his continuing interest in this development of the 

 previous work carried out at the University. 



The assistance provided by Mrs. Ann Martyn in the patient 

 and careful preparation of the manuscript is also very much appre- 

 ciated. 



168 



