HC Deb 05 May 1977 vol 931 c274W
Mr. Frank Allaun

asked the Secretary of State for Defence what has been the increase in cost of HMS "Invincible" compared with the original estimate both in percentage and in cash terms at current and constant prices; and what is the estimated cost of the second anti-submarine warship and of its complement of aircraft.

Dr. Gilbert

For commercial reasons it has not been the practice of successive Government to disclose the cost of warships before their acceptance into service.