Ladies and Gentlemen,

As most of you know this is the Fourth and last lecture of our present session, the other three having been given by Gp/Capt. LIPTROT, Mr. C. G. PULLIN and Mr. R. A. C. BRIE, covering an historical survey, design and operation of helicopters, etc., and to-day our lecturer is discussing “Limitations in Helicopter Design.”

It gives me very great pleasure to introduce Dr. BENNETT to you, for I have known him personally for fifteen years or more, during the whole of which time he has been intimately associated with rotary wing and helicopter design.

For some years prior to the war, Dr. BENNETT was with Messrs. G. & J. Weir and the Cierva Autogiro Co.; and during the war was C.T.O. at the Airborne Forces Experimental Establishment and spent two years in the U.S.A. where he latterly was attached to Wright Field as project engineer on helicopter research.