The Chairman, in introducing the Author, described the subject of his paper as one of paramount importance to all who were concerned in the design and operation of helicopters Mr Rogers was an indentured aeronautical engineer apprentice at the Fairey Aviation Company from 1940 to 1946, during which time he obtained the Ordinary and Higher National Certificates in Mechanical and Aeronautical Engineering He was awarded an S B A C scholarship to the College of Aeronautics in 1946 and obtained a diploma with distinction in Aircraft Design

The Chairman, in introducing the Author, said that Wing Commander Williams joined the Royal Air Force in 1936 and, after serving m Bomber Command at the beginning of the war he was unfortunate enough to be shot down in a Halifax bomber and taken prisoner After the war he spent some time on instructional duties, and in 1952 he attended the Royal Air Force Staff College In 1953 he was sent to Malaya to form and to command the Helicopter Wing, which also included a Naval Squadron He had, therefore, been very closely associated with helicopter operations for two and a half years Wing Commander Williams was now serving at the Air Ministry, in the Directorate of Air Transport Operations He is a Member of the Association