HC Deb 25 October 1973 vol 861 c700W
Mr. Warren

asked the Secretary of State for Trade and Industry if he will give a list of items which constitute the delay of six months in the certification of Concorde.

Mr. Michael Heseltine

The development programme covers a wide range of inter-related systems, tests and proving work, all of which are continuously being assessed in terms of their impact upon the date of certification. The holding factors inevitably change as the programme proceeds, and it would be misleading for me to single out any particular aspects at any one point in time.