Complex sentence: He became Air Officer Commanding No.11 Group on 7 January 1981, Vice-Chief of the Air Staff with the acting rank of air marshal on 28 August 1982 and, having been appointed Knight Commander of the Order of the Bath in the 1983 New Year Honours.
Split into simpler sentences: He became Air Officer Commanding No.11 Group on 7 January 1981, and Vice-Chief of the Air Staff with the acting rank of air marshal on 28 August 1982. He was appointed Knight Commander of the Order of the Bath in the 1983 New Year Honours.